Cerebras Systems Inc. (CBRS) Insider Trading
Over the last 3 months, CBRS insiders made 0 open-market buys and 188 sales, a net sale of -$258.2M (SEC Form 4). Over the last 6 months, 0 institutions increased and 0 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
188
Net (3m)
-$258.2M
Insider trades by month Buys Sells
Jun
Jul
Aug
Context3-month price -14.2%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Option | 237,559 | — |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Option | 37,559 | $2.72 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Option | 137,326 | $7.89 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Option | 62,674 | $5.02 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 6 | $210.21 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 4,594 | $208.86 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 1,400 | $207.28 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 1,600 | $205.32 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 4,800 | $204.44 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 12,092 | $203.37 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 6,699 | $202.28 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 8,832 | $201.12 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 33,575 | $200.13 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 66,237 | $199.33 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 32,864 | $198.18 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 21,307 | $197.45 |
| Aug 25, 2026 | Feldman Andrew D.director, officer: CEO, President | Sell | 43,553 | $196.20 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Sell | 11,706 | $203.78 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Sell | 47,766 | $204.87 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Option | 16,293 | $5.48 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Option | 696,798 | — |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Option | 48,545 | $5.48 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Option | 114,455 | $5.02 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Option | 87,326 | $7.89 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Option | 138,236 | $2.72 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Option | 308,236 | $2.40 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Sell | 16,293 | $210.01 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Sell | 24,652 | $212.64 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Sell | 10,715 | $211.42 |
| Aug 21, 2026 | Lie Seanofficer: Chief Technology Officer | Sell | 46,214 | $210.56 |
Source: CBRS SEC Form 4 filings, latest Aug 25, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CBRS positions over the last 6 months (SEC Form 13F).
Increased
0
New positions
421
Reduced
0
Sold out
0
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| ECLIPSE OPERATIONS, LLC | New Position | 11.4M | Aug 7, 2026 |
| FMR LLC | New Position | 8.4M | Aug 13, 2026 |
| JANE STREET GROUP, LLC | New Position | 8.1M | Aug 14, 2026 |
| Altimeter Capital Management, LP | New Position | 7.2M | Aug 14, 2026 |
| COATUE MANAGEMENT LLC | New Position | 7.0M | Aug 14, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New Position | 4.7M | Aug 14, 2026 |
| Capital World Investors | New Position | 3.9M | Aug 12, 2026 |
| Atreides Management, LP | New Position | 3.8M | Aug 14, 2026 |
| MORGAN STANLEY | New Position | 3.2M | Aug 13, 2026 |
| CITADEL ADVISORS LLC | New Position | 3.1M | Aug 14, 2026 |
| JPMORGAN CHASE & CO | New Position | 3.1M | Aug 12, 2026 |
| TIGER GLOBAL MANAGEMENT LLC | New Position | 3.0M | Aug 14, 2026 |
| VY Capital Management Co. Ltd. | New Position | 2.1M | Aug 18, 2026 |
| BlackRock, Inc. | New Position | 2.1M | Aug 7, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | New Position | 2.0M | Aug 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.