DaveManuel.com · Institutional Ownership · Who Owns It
CEREBRAS SYSTEMS INC (CBRS)
Institutional ownership reported to the SEC as of Q2 2026, across 4 quarters.
430
Reporting holders
$23.7B
Reported value
10.7%
Calls
6.5%
Puts
+429
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| ECLIPSE OPERATIONS, LLC | $2.5B | 11,446,270 | 98.28% | new | NEW |
| FMR LLC | $1.9B | 8,435,095 | 0.08% | new | NEW |
| JANE STREET GROUP, LLC | $1.8B incl. $1.7B options CALL+PUT | 250,122 | 0.15% | new | NEW |
| Altimeter Capital Management, LP | $1.6B | 7,225,037 | 16.24% | new | NEW |
| COATUE MANAGEMENT LLC | $1.5B | 7,011,028 | 3.19% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.0B incl. $1.0B options CALL+PUT | 146,618 | 0.08% | new | NEW |
| Capital World Investors | $860.7M | 3,894,458 | 0.10% | new | NEW |
| Atreides Management, LP | $842.0M incl. $154.7M options CALL | 3,110,086 | 5.87% | new | NEW |
| MORGAN STANLEY | $712.6M | 3,224,209 | 0.04% | new | NEW |
| JPMORGAN CHASE & CO | $710.9M incl. $40.6M options CALL | 3,100,806 | 0.04% | new | NEW |
| CITADEL ADVISORS LLC | $688.3M incl. $412.5M options CALL+PUT | 1,248,170 | 0.08% | new | NEW |
| TIGER GLOBAL MANAGEMENT LLC | $662.8M | 2,999,000 | 2.76% | new | NEW |
| VY Capital Management Co. Ltd. | $474.4M | 2,146,825 | 1.01% | new | NEW |
| BlackRock, Inc. | $458.6M | 2,075,168 | 0.01% | new | NEW |
| PRICE T ROWE ASSOCIATES INC /MD/ | $451.9M | 2,044,623 | 0.05% | new | NEW |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $343.0M | 1,551,946 | 0.02% | new | NEW |
| VANGUARD CAPITAL MANAGEMENT LLC | $304.9M | 1,379,809 | 0.01% | new | NEW |
| Balyasny Asset Management L.P. | $247.6M | 1,120,356 | 0.31% | new | NEW |
| Value Aligned Research Advisors, LLC | $241.9M | 1,094,722 | 0.60% | new | NEW |
| HARVARD MANAGEMENT CO INC | $239.0M | 1,081,283 | 5.61% | new | NEW |
| Capital Research Global Investors | $195.1M | 883,000 | 0.03% | new | NEW |
| WELLINGTON MANAGEMENT GROUP LLP | $194.9M | 881,688 | 0.03% | new | NEW |
| NORGES BANK | $187.1M | 846,636 | 0.02% | new | NEW |
| ADVANCED MICRO DEVICES INC | $175.6M | 794,467 | 13.38% | new | NEW |
| ARK Investment Management LLC | $169.0M | 764,613 | 1.10% | new | NEW |
| IMC-Chicago, LLC | $167.1M incl. $157.9M options CALL+PUT | 42,024 | 0.04% | new | NEW |
| Davidson Kempner Capital Management LP | $163.4M incl. $88.4M options CALL | 339,218 | 1.94% | new | NEW |
| UBS Group AG | $126.5M incl. $1.4M options CALL | 565,720 | 0.02% | new | NEW |
| WASHINGTON UNIVERSITY | $121.8M | 551,086 | 45.99% | new | NEW |
| Alpha Wave Global, LP | $112.7M | 510,000 | 1.81% | new | NEW |
| FRANKLIN RESOURCES INC | $105.9M | 479,318 | 0.02% | new | NEW |
| STATE STREET CORP | $105.3M | 476,663 | 0.00% | new | NEW |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $102.0M | 461,443 | 0.08% | new | NEW |
| Clear Street Group Inc. | $97.8M | 442,691 | 0.25% | new | NEW |
| Marex Group Ltd | $93.4M | 422,732 | 0.40% | new | NEW |
| GROUP ONE TRADING LLC | $92.2M CALL+PUT | options only | 0.13% | new | OPTIONS |
| Dragoneer Investment Group, LLC | $88.4M | 400,000 | 3.12% | new | NEW |
| GEODE CAPITAL MANAGEMENT, LLC | $88.4M | 399,695 | 0.00% | new | NEW |
| ADAMS STREET PARTNERS LLC | $88.0M | 398,144 | 19.88% | new | NEW |
| ExodusPoint Capital Management, LP | $84.5M incl. $19.9M options CALL | 292,273 | 0.54% | new | NEW |
| Temasek Holdings (Private) Ltd | $83.7M incl. $22.0M options PUT | 279,200 | 0.22% | new | NEW |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $82.1M | 371,665 | 0.03% | new | NEW |
| Jupiter Topco LLC | $75.9M | 343,421 | 0.03% | new | FIRST |
| T. Rowe Price Investment Management, Inc. | $75.3M | 340,920 | 0.05% | new | NEW |
| StepStone Group LP | $75.2M | 340,321 | 3.48% | new | NEW |
| Legal Advantage Investments, Inc. | $69.6M | 314,889 | 24.41% | new | NEW |
| Tidal Investments LLC | $68.2M incl. $25.3M options CALL | 194,508 | 0.12% | new | NEW |
| Sumitomo Mitsui Trust Group, Inc. | $67.9M | 307,104 | 0.04% | new | NEW |
| Meridiem Capital Partners LP | $66.6M incl. $17.7M options CALL | 221,522 | 2.99% | new | NEW |
| GF FUND MANAGEMENT CO. LTD. | $65.8M | 297,940 | 0.79% | new | NEW |
| BAMCO INC /NY/ | $65.2M | 295,028 | 0.10% | new | NEW |
| Amova Asset Management Americas, Inc. | $65.1M | 294,463 | 0.84% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $61.8M incl. $1.5M options CALL | 272,917 | 0.02% | new | NEW |
| SIMPLEX TRADING, LLC | $60.5M CALL+PUT | options only | 0.04% | new | OPTIONS |
| Ghisallo Capital Management LLC | $59.7M | 270,000 | 1.17% | new | NEW |
| AMERIPRISE FINANCIAL INC | $58.7M | 265,558 | 0.01% | new | NEW |
| SEVEN GRAND MANAGERS, LLC | $55.2M | 250,000 | 2.22% | new | NEW |
| TUDOR INVESTMENT CORP ET AL | $52.8M incl. $552.5K options CALL | 236,428 | 0.07% | new | NEW |
| HAMILTON LANE ADVISORS LLC | $52.7M | 238,304 | 35.44% | new | NEW |
| Liberty Street Advisors, Inc. | $52.3M | 236,563 | 10.31% | new | NEW |
| Belvedere Trading LLC | $50.4M CALL+PUT | options only | 0.06% | new | OPTIONS |
| BANK OF NOVA SCOTIA | $50.1M | 226,700 | 0.08% | new | NEW |
| D. E. Shaw & Co., Inc. | $48.7M | 220,350 | 0.02% | new | NEW |
| Blackstone Inc. | $48.6M | 220,000 | 0.12% | new | NEW |
| Invesco Ltd. | $46.7M | 211,268 | 0.00% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $46.6M | 210,919 | 0.01% | new | NEW |
| CAPSTONE INVESTMENT ADVISORS, LLC | $44.7M | 202,100 | 0.08% | new | NEW |
| Burkehill Global Management, LP | $44.2M | 200,000 | 1.60% | new | NEW |
| Unisphere Establishment | $43.9M | 198,450 | 0.37% | new | NEW |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $41.9M | 189,613 | 0.01% | new | NEW |
| Totem Point Management, LLC | $40.0M | 180,953 | 24.46% | new | NEW |
| HRT FINANCIAL LP | $39.5M incl. $39.5M options OPT | 178,600 | 0.07% | new | NEW |
| Jain Global LLC | $39.3M incl. $5.5M options CALL | 152,895 | 0.15% | new | NEW |
| Verition Fund Management LLC | $38.7M | 175,000 | 0.20% | new | NEW |
| Hudson Bay Capital Management LP | $38.6M | 174,672 | 0.10% | new | NEW |
| MONTANOVA CAPITAL, LLC | $38.0M | 171,900 | 0.69% | new | NEW |
| Walleye Trading LLC | $36.4M CALL+PUT | options only | 0.04% | new | OPTIONS |
| Lighthouse Investment Partners, LLC | $34.7M | 157,000 | 0.95% | new | NEW |
| PEAK6 LLC | $34.3M CALL+PUT | options only | 0.07% | new | OPTIONS |
| Legal & General Group Plc | $33.7M | 152,323 | 0.01% | new | NEW |
| Alyeska Investment Group, L.P. | $33.6M | 152,247 | 0.09% | new | NEW |
| Foundations Investment Advisors, LLC | $33.6M | 152,080 | 0.35% | new | NEW |
| SOROS FUND MANAGEMENT LLC | $33.1M | 150,000 | 0.41% | new | NEW |
| D1 Capital Partners L.P. | $33.1M | 150,000 | 0.10% | new | NEW |
| GREENOAKS LLC | $33.1M | 150,000 | 1.41% | new | NEW |
| GOLDMAN SACHS GROUP INC | $32.1M incl. $7.7M options CALL | 110,441 | 0.00% | new | NEW |
| CANTOR FITZGERALD, L. P. | $31.4M incl. $4.4M options PUT | 122,200 | 0.17% | new | NEW |
| AKUNA SECURITIES LLC | $30.6M incl. $29.4M options CALL+PUT | 5,390 | 0.09% | new | NEW |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | $29.7M | 134,465 | 0.52% | new | NEW |
| MAPLELANE CAPITAL, LLC | $29.2M | 132,000 | 0.53% | new | NEW |
| CROSSLINK CAPITAL INC | $28.8M | 130,445 | 2.13% | new | NEW |
| LMR Partners LLP | $28.8M incl. $2.3M options CALL | 120,000 | 0.11% | new | NEW |
| SAMLYN CAPITAL, LLC | $28.7M | 130,089 | 0.47% | new | NEW |
| Point72 Asset Management, L.P. | $28.7M | 129,891 | 0.03% | new | NEW |
| Artisan Partners Limited Partnership | $23.9M | 108,217 | 0.04% | new | NEW |
| Avala Global LP | $23.7M | 107,300 | 0.87% | new | NEW |
| Freestone Grove Partners LP | $22.1M | 100,002 | 0.14% | new | NEW |
| Talos Eurisko Asset Management LP | $22.1M CALL | options only | 3.14% | new | OPTIONS |
| Longaeva Partners L.P. | $22.1M | 100,000 | 0.48% | new | NEW |
| Engineers Gate Manager LP | $21.8M | 98,463 | 0.28% | new | NEW |
Showing the largest 100 of 432 reported holders. The count of 430 above leaves out 2 positions whose reported value failed our price check; they are listed here as filed.
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Lie Sean | Chief Technology Officer | Sold | 710,247 | $147.6M ×10 |
| 2026-09-29 | Mallick Dhiraj | Chief Operating Officer | Sold | 396,000 | $80.8M ×19 |
| 2026-08-21 | Feldman Andrew D. | CEO, President | Sold | 237,559 | $47.3M ×13 |
| 2026-09-25 | Lie Sean | Chief Technology Officer | Sold | 120,000 | $25.1M ×9 |
| 2026-08-17 | Vishria Eric | Director | Sold | 68,268 | $15.7M ×6 |
| 2026-09-04 | Lie Sean | Chief Technology Officer | Sold | 53,460 | $11.2M |
| 2026-08-14 | Vassallo Steven | Director | Sold | 50,000 | $10.9M ×5 |
| 2026-09-04 | Vassallo Steven | Director | Sold | 50,000 | $10.5M ×3 |
| 2026-08-18 | Mallick Dhiraj | Chief Operating Officer | Sold | 38,889 | $8.6M ×26 |
| 2026-09-04 | Feldman Andrew D. | CEO, President | Sold | 37,441 | $7.9M ×16 |
| 2026-10-27 | Lie Sean | Chief Technology Officer | Sold | 60,000 | $6.9M ×3 |
| 2026-09-29 | Komin Robert Patrick Jr. | Chief Financial Officer | Sold | 32,500 | $6.6M ×16 |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 149 | $485.1M | 2,700,096 | 66 | 44 | 17 | 1.5% |
| Q2 2026 | 430 | $23.7B | 89,014,447 | 439 | 0 | 0 | 17.4% |
| Q3 2025 | 1 | $341.8K | 1,924 | 0 | 1 | 0 | 0.0% |
| Q2 2025 | 1 | $229.8K | 1,040 | 1 | 0 | 0 | 0.0% |