4Filing Date: Oct 2, 2026

Seagate Technology (STX) 4: CEO sold 18,998 shares (Oct 2, 2026)

Statement of Changes in Beneficial Ownership

View SEC Filing
ACC: 0001137789-26-000261
Total Value$18.02M
Trades30
Insiders1

Transaction Details

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-517
Price$900.46
Total Value$465.5K
Shares Owned After391.23K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $899.96 to $900.87. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-480
Price$905.38
Total Value$434.6K
Shares Owned After388.75K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $905.01 to $905.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-1.03K
Price$908.58
Total Value$933.1K
Shares Owned After386.56K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $908.16 to $909.15. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-696
Price$913.08
Total Value$635.5K
Shares Owned After383.57K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $912.54 to $913.53. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-480
Price$916.10
Total Value$439.7K
Shares Owned After381.23K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $915.61 to $916.45. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-930
Price$921.63
Total Value$857.1K
Shares Owned After377.51K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $921.15 to $922.08. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-640
Price$924.72
Total Value$591.8K
Shares Owned After375.31K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $924.21 to $925.19. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-640
Price$927.90
Total Value$593.9K
Shares Owned After373.11K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $927.41 to $928.36. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Exercise · Acquire
Ordinary Shares
Shares+14.00K
Price$46.23
Total Value$647.2K
Shares Owned After392.11K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-360
Price$898.10
Total Value$323.3K
Shares Owned After391.75K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $897.79 to $898.58. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-384
Price$902.55
Total Value$346.6K
Shares Owned After390.41K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $901.97 to $902.93. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-560
Price$907.43
Total Value$508.2K
Shares Owned After387.59K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $907.08 to $908.07. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-1.15K
Price$912.04
Total Value$1.05M
Shares Owned After384.27K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $911.51 to $912.47. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-960
Price$915.01
Total Value$878.4K
Shares Owned After381.71K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $914.56 to $915.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-920
Price$918.49
Total Value$845.0K
Shares Owned After379.91K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $918.05 to $919.02. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-760
Price$923.78
Total Value$702.1K
Shares Owned After375.95K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $923.19 to $924.18. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-480
Price$926.78
Total Value$444.9K
Shares Owned After373.75K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $926.33 to $927.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-440
Price$901.49
Total Value$396.7K
Shares Owned After390.79K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $900.96 to $901.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-480
Price$904.33
Total Value$434.1K
Shares Owned After389.23K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $904.00 to $904.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-840
Price$910.69
Total Value$765.0K
Shares Owned After385.42K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $910.22 to $911.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-904
Price$913.94
Total Value$826.2K
Shares Owned After382.67K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $913.55 to $914.39. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-400
Price$917.22
Total Value$366.9K
Shares Owned After380.83K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $917.02 to $917.62. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-630
Price$920.62
Total Value$580.0K
Shares Owned After378.44K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $920.10 to $921.09. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-1.08K
Price$925.88
Total Value$1000.0K
Shares Owned After374.23K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $925.27 to $926.22. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Exercise · Dispose
NQ OptionsDerivative
Shares-14.00K
Price$0.00
Total Value$0
Shares Owned After83.10K
Transaction DateOct 1, 2026
Exercise Price$46.23
ExpiresSep 9, 2027
10b5-1
Footnotes ▸

Options granted to the Reporting Person are subject to a four year vesting schedule. One quarter of the option shares vested on September 9, 2021. The remaining option shares vest in equal monthly installments over the 36 months following September 9, 2021.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-696
Price$903.36
Total Value$628.7K
Shares Owned After389.71K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $903.00 to $903.79. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-601
Price$906.42
Total Value$544.8K
Shares Owned After388.15K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $906.06 to $906.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-307
Price$909.84
Total Value$279.3K
Shares Owned After386.26K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $909.22 to $910.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-840
Price$919.56
Total Value$772.4K
Shares Owned After379.07K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $919.07 to $920.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

MOSLEY WILLIAM D
CEO, Director·Direct
Sell · Dispose
Ordinary Shares
Shares-800
Price$922.66
Total Value$738.1K
Shares Owned After376.71K
Transaction DateOct 1, 2026
10b5-1
Footnotes ▸

These Ordinary Shares were sold in multiple trades at prices ranging from $922.16 to $923.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Post-Transaction Holdings

MOSLEY WILLIAM D · CEO, Director
SecuritySharesChange
NQ Options83.10K-14.00K (-14.42%)
Ordinary Shares391.23K-5.00K (-1.26%)
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Deep Analysis

Seagate CEO William Mosley exercised 14,000 options at $46.23 and sold 18,998 shares for roughly $17.4M under a Rule 10b5-1 plan, leaving him a net 4,998 shares lighter.

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Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-10-01 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Seagate Technology Holdings plc (STX) CIK: 0001137789 --- Reporting Owner --- Name: MOSLEY WILLIAM D CIK: 0001388390 Role: Director, Officer (CEO) --- Non-Derivative Transactions --- [Transaction #1] Security: Ordinary Shares Date: 2026-10-01 | Code: M (Exercise of derivative) Shares: +14,000 | Price: $46.23 Total Value: $647,220.00 Shares Owned After: 392,108.25 | Ownership: D (Direct) Footnotes: [F1] All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026. [Transaction #2] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -360 | Price: $898.10 Total Value: $323,314.42 Shares Owned After: 391,748.25 | Ownership: D (Direct) Footnotes: [F2] These Ordinary Shares were sold in multiple trades at prices ranging from $897.79 to $898.58. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #3] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -517 | Price: $900.46 Total Value: $465,538.75 Shares Owned After: 391,231.25 | Ownership: D (Direct) Footnotes: [F3] These Ordinary Shares were sold in multiple trades at prices ranging from $899.96 to $900.87. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #4] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -440 | Price: $901.49 Total Value: $396,654.81 Shares Owned After: 390,791.25 | Ownership: D (Direct) Footnotes: [F4] These Ordinary Shares were sold in multiple trades at prices ranging from $900.96 to $901.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #5] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -384 | Price: $902.55 Total Value: $346,578.55 Shares Owned After: 390,407.25 | Ownership: D (Direct) Footnotes: [F5] These Ordinary Shares were sold in multiple trades at prices ranging from $901.97 to $902.93. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #6] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -696 | Price: $903.36 Total Value: $628,740.79 Shares Owned After: 389,711.25 | Ownership: D (Direct) Footnotes: [F6] These Ordinary Shares were sold in multiple trades at prices ranging from $903.00 to $903.79. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #7] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -480 | Price: $904.33 Total Value: $434,079.60 Shares Owned After: 389,231.25 | Ownership: D (Direct) Footnotes: [F7] These Ordinary Shares were sold in multiple trades at prices ranging from $904.00 to $904.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #8] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -480 | Price: $905.38 Total Value: $434,583.12 Shares Owned After: 388,751.25 | Ownership: D (Direct) Footnotes: [F8] These Ordinary Shares were sold in multiple trades at prices ranging from $905.01 to $905.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #9] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -601 | Price: $906.42 Total Value: $544,760.34 Shares Owned After: 388,150.25 | Ownership: D (Direct) Footnotes: [F9] These Ordinary Shares were sold in multiple trades at prices ranging from $906.06 to $906.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #10] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -560 | Price: $907.43 Total Value: $508,161.98 Shares Owned After: 387,590.25 | Ownership: D (Direct) Footnotes: [F10] These Ordinary Shares were sold in multiple trades at prices ranging from $907.08 to $908.07. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #11] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -1,027 | Price: $908.58 Total Value: $933,109.71 Shares Owned After: 386,563.25 | Ownership: D (Direct) Footnotes: [F11] These Ordinary Shares were sold in multiple trades at prices ranging from $908.16 to $909.15. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #12] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -307 | Price: $909.84 Total Value: $279,322.23 Shares Owned After: 386,256.25 | Ownership: D (Direct) Footnotes: [F12] These Ordinary Shares were sold in multiple trades at prices ranging from $909.22 to $910.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #13] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -840 | Price: $910.69 Total Value: $764,982.37 Shares Owned After: 385,416.25 | Ownership: D (Direct) Footnotes: [F13] These Ordinary Shares were sold in multiple trades at prices ranging from $910.22 to $911.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #14] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -1,146 | Price: $912.04 Total Value: $1,045,202.19 Shares Owned After: 384,270.25 | Ownership: D (Direct) Footnotes: [F14] These Ordinary Shares were sold in multiple trades at prices ranging from $911.51 to $912.47. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #15] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -696 | Price: $913.08 Total Value: $635,502.57 Shares Owned After: 383,574.25 | Ownership: D (Direct) Footnotes: [F15] These Ordinary Shares were sold in multiple trades at prices ranging from $912.54 to $913.53. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #16] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -904 | Price: $913.94 Total Value: $826,203.39 Shares Owned After: 382,670.25 | Ownership: D (Direct) Footnotes: [F16] These Ordinary Shares were sold in multiple trades at prices ranging from $913.55 to $914.39. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #17] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -960 | Price: $915.01 Total Value: $878,407.97 Shares Owned After: 381,710.25 | Ownership: D (Direct) Footnotes: [F17] These Ordinary Shares were sold in multiple trades at prices ranging from $914.56 to $915.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #18] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -480 | Price: $916.10 Total Value: $439,725.98 Shares Owned After: 381,230.25 | Ownership: D (Direct) Footnotes: [F18] These Ordinary Shares were sold in multiple trades at prices ranging from $915.61 to $916.45. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #19] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -400 | Price: $917.22 Total Value: $366,888.80 Shares Owned After: 380,830.25 | Ownership: D (Direct) Footnotes: [F19] These Ordinary Shares were sold in multiple trades at prices ranging from $917.02 to $917.62. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #20] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -920 | Price: $918.49 Total Value: $845,012.82 Shares Owned After: 379,910.25 | Ownership: D (Direct) Footnotes: [F20] These Ordinary Shares were sold in multiple trades at prices ranging from $918.05 to $919.02. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #21] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -840 | Price: $919.56 Total Value: $772,428.38 Shares Owned After: 379,070.25 | Ownership: D (Direct) Footnotes: [F21] These Ordinary Shares were sold in multiple trades at prices ranging from $919.07 to $920.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #22] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -630 | Price: $920.62 Total Value: $579,988.08 Shares Owned After: 378,440.25 | Ownership: D (Direct) Footnotes: [F22] These Ordinary Shares were sold in multiple trades at prices ranging from $920.10 to $921.09. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #23] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -930 | Price: $921.63 Total Value: $857,120.55 Shares Owned After: 377,510.25 | Ownership: D (Direct) Footnotes: [F23] These Ordinary Shares were sold in multiple trades at prices ranging from $921.15 to $922.08. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #24] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -800 | Price: $922.66 Total Value: $738,126.00 Shares Owned After: 376,710.25 | Ownership: D (Direct) Footnotes: [F24] These Ordinary Shares were sold in multiple trades at prices ranging from $922.16 to $923.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #25] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -760 | Price: $923.78 Total Value: $702,074.40 Shares Owned After: 375,950.25 | Ownership: D (Direct) Footnotes: [F25] These Ordinary Shares were sold in multiple trades at prices ranging from $923.19 to $924.18. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #26] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -640 | Price: $924.72 Total Value: $591,820.67 Shares Owned After: 375,310.25 | Ownership: D (Direct) Footnotes: [F26] These Ordinary Shares were sold in multiple trades at prices ranging from $924.21 to $925.19. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #27] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -1,080 | Price: $925.88 Total Value: $999,953.21 Shares Owned After: 374,230.25 | Ownership: D (Direct) Footnotes: [F27] These Ordinary Shares were sold in multiple trades at prices ranging from $925.27 to $926.22. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #28] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -480 | Price: $926.78 Total Value: $444,852.38 Shares Owned After: 373,750.25 | Ownership: D (Direct) Footnotes: [F28] These Ordinary Shares were sold in multiple trades at prices ranging from $926.33 to $927.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #29] Security: Ordinary Shares Date: 2026-10-01 | Code: S (Open market sale) Shares: -640 | Price: $927.90 Total Value: $593,853.63 Shares Owned After: 373,110.25 | Ownership: D (Direct) Footnotes: [F29] These Ordinary Shares were sold in multiple trades at prices ranging from $927.41 to $928.36. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. --- Derivative Transactions --- [Transaction #1] Security: NQ Options Date: 2026-10-01 | Code: M (Exercise of derivative) Shares: -14,000 | Price: $0.00 Exercise Price: $46.23 Exercisable: N/A | Expires: 2027-09-09 Shares Owned After: 83,100 | Ownership: D (Direct) Footnotes: [F30] Options granted to the Reporting Person are subject to a four year vesting schedule. One quarter of the option shares vested on September 9, 2021. The remaining option shares vest in equal monthly installments over the 36 months following September 9, 2021. --- Footnotes (Complete Index) --- F1: All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026. F10: These Ordinary Shares were sold in multiple trades at prices ranging from $907.08 to $908.07. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F11: These Ordinary Shares were sold in multiple trades at prices ranging from $908.16 to $909.15. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F12: These Ordinary Shares were sold in multiple trades at prices ranging from $909.22 to $910.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F13: These Ordinary Shares were sold in multiple trades at prices ranging from $910.22 to $911.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F14: These Ordinary Shares were sold in multiple trades at prices ranging from $911.51 to $912.47. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F15: These Ordinary Shares were sold in multiple trades at prices ranging from $912.54 to $913.53. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F16: These Ordinary Shares were sold in multiple trades at prices ranging from $913.55 to $914.39. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F17: These Ordinary Shares were sold in multiple trades at prices ranging from $914.56 to $915.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F18: These Ordinary Shares were sold in multiple trades at prices ranging from $915.61 to $916.45. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F19: These Ordinary Shares were sold in multiple trades at prices ranging from $917.02 to $917.62. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F2: These Ordinary Shares were sold in multiple trades at prices ranging from $897.79 to $898.58. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F20: These Ordinary Shares were sold in multiple trades at prices ranging from $918.05 to $919.02. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F21: These Ordinary Shares were sold in multiple trades at prices ranging from $919.07 to $920.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F22: These Ordinary Shares were sold in multiple trades at prices ranging from $920.10 to $921.09. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F23: These Ordinary Shares were sold in multiple trades at prices ranging from $921.15 to $922.08. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F24: These Ordinary Shares were sold in multiple trades at prices ranging from $922.16 to $923.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F25: These Ordinary Shares were sold in multiple trades at prices ranging from $923.19 to $924.18. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F26: These Ordinary Shares were sold in multiple trades at prices ranging from $924.21 to $925.19. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F27: These Ordinary Shares were sold in multiple trades at prices ranging from $925.27 to $926.22. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F28: These Ordinary Shares were sold in multiple trades at prices ranging from $926.33 to $927.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F29: These Ordinary Shares were sold in multiple trades at prices ranging from $927.41 to $928.36. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F3: These Ordinary Shares were sold in multiple trades at prices ranging from $899.96 to $900.87. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F30: Options granted to the Reporting Person are subject to a four year vesting schedule. One quarter of the option shares vested on September 9, 2021. The remaining option shares vest in equal monthly installments over the 36 months following September 9, 2021. F4: These Ordinary Shares were sold in multiple trades at prices ranging from $900.96 to $901.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F5: These Ordinary Shares were sold in multiple trades at prices ranging from $901.97 to $902.93. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F6: These Ordinary Shares were sold in multiple trades at prices ranging from $903.00 to $903.79. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F7: These Ordinary Shares were sold in multiple trades at prices ranging from $904.00 to $904.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F8: These Ordinary Shares were sold in multiple trades at prices ranging from $905.01 to $905.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F9: These Ordinary Shares were sold in multiple trades at prices ranging from $906.06 to $906.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. --- Signature --- /s/ /s/ Louis J. Thorson, Attorney-in-Fact for William D. Mosley (2026-10-02)

keid analysis is for reference only and does not constitute investment advice.