Form 4 for CBRS Cerebras Systems Inc.
Accepted 2026-06-29 16:48:34 ET · period of report 2026-06-25 · accession 0001628280-26-046035 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-29 16:48 | 2026-06-25 | CBRS | Patel Yagnesh | CAO | C - Cnv Deriv | — | +10.1K | 10.1K | New | — |
| DM | 2026-06-29 16:48 | 2026-06-25 | CBRS | Patel Yagnesh | CAO | S - Sale | $171.53 | -6,079 | 4,000 | -60% | -$1.04M |
| D | 2026-06-29 16:48 | 2026-06-25 | CBRS | Patel Yagnesh | CAO | C - Cnv Deriv | — | -10.1K | 120.8K | -8% | — |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Class A Common Stock | 2026-06-25 | C | A | 10,079 | — | 10,079 | D | — | — | (F1) The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date. (F1) The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date. |
| 2 | Common | Class A Common Stock | 2026-06-25 | S | D | 107 | $162.71 | 9,972 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. (F3) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $162.34 to $163.08, 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. |
| 3 | Common | Class A Common Stock | 2026-06-25 | S | D | 215 | $164.19 | 9,757 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. (F4) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $163.82 to $164.60, 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. |
| 4 | Common | Class A Common Stock | 2026-06-25 | S | D | 161 | $166.01 | 9,596 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. (F5) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $165.47 to $166.30, 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. |
| 5 | Common | Class A Common Stock | 2026-06-25 | S | D | 228 | $166.98 | 9,368 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. (F6) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $166.61 to $167.10, 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. |
| 6 | Common | Class A Common Stock | 2026-06-25 | S | D | 269 | $169.11 | 9,099 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. (F7) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $168.63 to $169.37, 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. |
| 7 | Common | Class A Common Stock | 2026-06-25 | S | D | 107 | $171.66 | 8,992 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. (F8) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $171.58 to $171.73, 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. |
| 8 | Common | Class A Common Stock | 2026-06-25 | S | D | 54 | $175.74 | 8,938 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. |
| 9 | Common | Class A Common Stock | 2026-06-25 | S | D | 54 | $179.80 | 8,884 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. |
| 10 | Common | Class A Common Stock | 2026-06-25 | S | D | 54 | $180.93 | 8,830 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. |
| 11 | Common | Class A Common Stock | 2026-06-25 | S | D | 54 | $182.38 | 8,776 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. |
| 12 | Common | Class A Common Stock | 2026-06-25 | S | D | 107 | $183.60 | 8,669 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. (F9) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $183.52 to $183.68, 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. |
| 13 | Common | Class A Common Stock | 2026-06-25 | S | D | 215 | $184.96 | 8,454 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. (F10) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $184.61 to $185.52, 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. |
| 14 | Common | Class A Common Stock | 2026-06-25 | S | D | 54 | $189.36 | 8,400 | D | — | — | (F2) These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement. |
| 15 | Common | Class A Common Stock | 2026-06-25 | S | D | 193 | $162.45 | 8,207 | D | — | — | (F11) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $162.21 to $163.08, 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. |
| 16 | Common | Class A Common Stock | 2026-06-25 | S | D | 185 | $164.19 | 8,022 | D | — | — | (F4) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $163.82 to $164.60, 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. |
| 17 | Common | Class A Common Stock | 2026-06-25 | S | D | 269 | $165.85 | 7,753 | D | — | — | (F5) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $165.47 to $166.30, 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. |
| 18 | Common | Class A Common Stock | 2026-06-25 | S | D | 796 | $166.93 | 6,957 | D | — | — | (F12) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $166.54 to $167.28, 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. |
| 19 | Common | Class A Common Stock | 2026-06-25 | S | D | 663 | $168.59 | 6,294 | D | — | — | (F13) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $168.08 to $169.02, 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. |
| 20 | Common | Class A Common Stock | 2026-06-25 | S | D | 239 | $169.21 | 6,055 | D | — | — | (F14) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $169.12 to $169.37, 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. |
| 21 | Common | Class A Common Stock | 2026-06-25 | S | D | 993 | $171.57 | 5,062 | D | — | — | (F15) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $171.08 to $172.02, 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. |
| 22 | Common | Class A Common Stock | 2026-06-25 | S | D | 200 | $172.33 | 4,862 | D | — | — | (F16) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $172.27 to $172.38, 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. |
| 23 | Common | Class A Common Stock | 2026-06-25 | S | D | 100 | $173.91 | 4,762 | D | — | — | |
| 24 | Common | Class A Common Stock | 2026-06-25 | S | D | 46 | $175.74 | 4,716 | D | — | — | |
| 25 | Common | Class A Common Stock | 2026-06-25 | S | D | 100 | $178.50 | 4,616 | D | — | — | |
| 26 | Common | Class A Common Stock | 2026-06-25 | S | D | 46 | $179.80 | 4,570 | D | — | — | |
| 27 | Common | Class A Common Stock | 2026-06-25 | S | D | 46 | $180.93 | 4,524 | D | — | — | |
| 28 | Common | Class A Common Stock | 2026-06-25 | S | D | 46 | $182.38 | 4,478 | D | — | — | |
| 29 | Common | Class A Common Stock | 2026-06-25 | S | D | 93 | $183.60 | 4,385 | D | — | — | (F17) The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $184.57 to $185.53, 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. |
| 30 | Common | Class A Common Stock | 2026-06-25 | S | D | 385 | $185.01 | 4,000 | D | — | — | |
| 31 | Derivative | Class B Common Stock | 2026-06-25 | C | D | 10,079 | — | 120,838 | D | — · — to — | 10,079 Class A Common Stock | (F1) The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date. (F1) The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date. (F1) The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date. (F1) The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date. |