=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-06-25
10b5-1 Pre-arranged Plan: No
--- Issuer ---
Name: Cerebras Systems Inc. (CBRS)
CIK: 0002021728
--- Reporting Owner ---
Name: Patel Yagnesh
CIK: 0001702410
Role: Officer (Chief Accounting Officer)
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Class A Common Stock
Date: 2026-06-25 | Code: S (Open market sale)
Shares: -46 | Price: $189.36
Total Value: $8,710.56
Shares Owned After: 3,954 | Ownership: D (Direct)
[Transaction #2]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -100 | Price: $161.61
Total Value: $16,161.00
Shares Owned After: 3,854 | Ownership: D (Direct)
[Transaction #3]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -300 | Price: $163.29
Total Value: $48,987.00
Shares Owned After: 3,554 | Ownership: D (Direct)
Footnotes:
[F1] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $162.95 to $163.56, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #4]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -100 | Price: $164.79
Total Value: $16,479.00
Shares Owned After: 3,454 | Ownership: D (Direct)
[Transaction #5]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -200 | Price: $166.66
Total Value: $33,332.00
Shares Owned After: 3,254 | Ownership: D (Direct)
Footnotes:
[F2] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $166.32 to $166.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #6]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -200 | Price: $168.45
Total Value: $33,690.00
Shares Owned After: 3,054 | Ownership: D (Direct)
Footnotes:
[F3] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $167.96 to $168.94, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #7]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -300 | Price: $169.31
Total Value: $50,793.00
Shares Owned After: 2,754 | Ownership: D (Direct)
Footnotes:
[F4] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $169.05 to $169.77, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #8]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -400 | Price: $171.99
Total Value: $68,796.00
Shares Owned After: 2,354 | Ownership: D (Direct)
Footnotes:
[F5] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $171.79 to $172.21, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #9]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -500 | Price: $173.36
Total Value: $86,680.00
Shares Owned After: 1,854 | Ownership: D (Direct)
Footnotes:
[F6] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $173.04 to $173.77, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #10]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -200 | Price: $175.01
Total Value: $35,002.00
Shares Owned After: 1,654 | Ownership: D (Direct)
Footnotes:
[F7] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $174.89 to $175.12, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #11]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -100 | Price: $176.12
Total Value: $17,612.00
Shares Owned After: 1,554 | Ownership: D (Direct)
[Transaction #12]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -200 | Price: $178.36
Total Value: $35,672.00
Shares Owned After: 1,354 | Ownership: D (Direct)
Footnotes:
[F8] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $178.00 to $178.71, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #13]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -300 | Price: $179.56
Total Value: $53,868.00
Shares Owned After: 1,054 | Ownership: D (Direct)
Footnotes:
[F9] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $179.09 to $179.82, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #14]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -700 | Price: $180.83
Total Value: $126,581.00
Shares Owned After: 354 | Ownership: D (Direct)
Footnotes:
[F10] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $180.43 to $181.36, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #15]
Security: Class A Common Stock
Date: 2026-06-26 | Code: S (Open market sale)
Shares: -354 | Price: $182.05
Total Value: $64,445.70
Shares Owned After: 0 | Ownership: D (Direct)
Footnotes:
[F11] The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $181.74 to $182.26, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
[Transaction #16]
Security: Class A Common Stock
Date: 2026-06-26 | Code: A (Grant or award)
Shares: +15,000 | Price: $0.00
Shares Owned After: 15,000 | Ownership: D (Direct)
Footnotes:
[F12] Represents restricted stock units ("RSUs") that vest according to the terms of the applicable award agreement. Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock.
--- Footnotes (Complete Index) ---
F1: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $162.95 to $163.56, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F10: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $180.43 to $181.36, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F11: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $181.74 to $182.26, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F12: Represents restricted stock units ("RSUs") that vest according to the terms of the applicable award agreement. Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock.
F2: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $166.32 to $166.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F3: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $167.96 to $168.94, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F4: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $169.05 to $169.77, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F5: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $171.79 to $172.21, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F6: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $173.04 to $173.77, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F7: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $174.89 to $175.12, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F8: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $178.00 to $178.71, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
F9: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $179.09 to $179.82, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
--- Signature ---
/s/ /s/ Robert Mills, Attorney-in-fact (2026-06-29)
