Cerebras Systems Inc. (CBRS) Ownership
CBRS ownership summary
as of October 18, 2026- Institutions
- 80.4% of shares outstanding
- Insiders
- 9.60% of shares outstanding
- Shares outstanding
- 112.2M
- Float
- 109.9M shares available to trade
- Short interest
- 12.58% 14.1M shares short
- Days to cover
- 2.22 short interest up 10.3% vs prior month
- Institutions 80.41%
- Insiders 9.60%
- Other investors 9.99%
CBRS top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | ECLIPSE VENTURES, LLC | 4.82% | 11.4M | $1.46B | +11.4M (0.0%) | June 30, 2026 |
| 2 | FMR Inc | 3.55% | 8.4M | $1.07B | +8.4M (0.0%) | June 30, 2026 |
| 3 | Altimeter Capital Management, LLC | 3.04% | 7.2M | $919.1M | +7.2M (0.0%) | June 30, 2026 |
| 4 | Coatue Management LLC | 2.95% | 7.0M | $891.9M | +7.0M (0.0%) | June 30, 2026 |
| 5 | Capital World Investors | 1.64% | 3.9M | $495.4M | +3.9M (0.0%) | June 30, 2026 |
| 6 | Morgan Stanley - Brokerage Accounts | 1.36% | 3.2M | $410.2M | +3.2M (0.0%) | June 30, 2026 |
| 7 | Atreides Management, LP | 1.31% | 3.1M | $395.6M | +3.1M (0.0%) | June 30, 2026 |
| 8 | JPMorgan Chase & Co | 1.31% | 3.1M | $394.5M | +3.1M (0.0%) | June 30, 2026 |
| 9 | Tiger Technology Management LLC | 1.26% | 3.0M | $381.5M | +3.0M (0.0%) | June 30, 2026 |
| 10 | VY Capital Management Co. Ltd | 0.90% | 2.1M | $273.1M | +2.1M (0.0%) | June 30, 2026 |
| 11 | BlackRock Inc | 0.87% | 2.1M | $264.0M | +2.1M (0.0%) | June 30, 2026 |
| 12 | T. Rowe Price Associates, Inc. | 0.86% | 2.0M | $260.1M | +2.0M (0.0%) | June 30, 2026 |
| 13 | Vanguard Portfolio Management, LLC | 0.65% | 1.6M | $197.4M | +1.6M (0.0%) | June 30, 2026 |
| 14 | Vanguard Capital Management, LLC | 0.58% | 1.4M | $175.5M | +1.4M (0.0%) | June 30, 2026 |
| 15 | Citadel Advisors Llc | 0.53% | 1.2M | $158.8M | +1.2M (0.0%) | June 30, 2026 |
| 16 | Balyasny Asset Management LLC | 0.47% | 1.1M | $142.5M | +1.1M (0.0%) | June 30, 2026 |
| 17 | Value Aligned Research Advisors LLC | 0.46% | 1.1M | $139.3M | +1.1M (0.0%) | June 30, 2026 |
| 18 | Harvard Management Co Inc | 0.46% | 1.1M | $137.6M | +1.1M (0.0%) | June 30, 2026 |
| 19 | Capital Research Global Investors | 0.37% | 883K | $112.3M | +883,000 (0.0%) | June 30, 2026 |
| 20 | Wellington Management Company LLP | 0.37% | 882K | $112.2M | +881,688 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 20 holders added 66.0M shares and 0 cut 0.
CBRS top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Semiconductor ETF | 0.96% | 2.3M | $289.2M | −22,899 (−1.0%) | September 30, 2026 |
| 2 | American Funds IS® Growth 1 | 0.94% | 2.2M | $285.2M | +2.2M (0.0%) | June 30, 2026 |
| 3 | Fidelity Advisor Growth Opps M | 0.88% | 2.1M | $264.9M | −563,700 (−21.3%) | August 31, 2026 |
| 4 | Fidelity Select Semiconductors | 0.60% | 1.4M | $182.3M | −40,500 (−2.7%) | August 31, 2026 |
| 5 | Fidelity Select Technology | 0.51% | 1.2M | $153.9M | +501,025 (+70.7%) | August 31, 2026 |
| 6 | Capital Group Growth ETF | 0.46% | 1.1M | $140.2M | +10,457 (+1.0%) | September 30, 2026 |
| 7 | ARK Innovation ETF | 0.43% | 1.0M | $129.0M | −79,230 (−7.2%) | September 30, 2026 |
| 8 | T. Rowe Price Lrg Cp Gr I | 0.41% | 971K | $123.5M | +971,184 (0.0%) | August 31, 2026 |
| 9 | Vanguard MStar Total Stk Mkt Idx Invest | 0.40% | 955K | $121.5M | −1,093 (−0.1%) | August 31, 2026 |
| 10 | T. Rowe Price Capital Appreciation | 0.39% | 931K | $118.5M | +320,900 (+52.6%) | August 31, 2026 |
| 11 | American Funds Growth Fd of Amer A | 0.36% | 856K | $108.9M | +856,177 (0.0%) | June 30, 2026 |
| 12 | Direxion Daily Semicondct Bull 3X ETF | 0.33% | 792K | $100.7M | −4,788 (−0.6%) | September 30, 2026 |
| 13 | Fidelity Contrafund | 0.29% | 681K | $86.6M | +57,289 (+9.2%) | August 31, 2026 |
| 14 | JPMorgan Growth Advantage A | 0.28% | 666K | $84.7M | −105,887 (−13.7%) | August 31, 2026 |
| 15 | Vanguard MStar Mid Cap Index Instl | 0.27% | 649K | $82.5M | −499 (−0.1%) | August 31, 2026 |
| 16 | Vanguard MStar Growth Index Investor | 0.26% | 619K | $78.7M | −778 (−0.1%) | August 31, 2026 |
| 17 | Strategic Advisers Fidelity US TtlStk | 0.23% | 544K | $69.2M | +27,900 (+5.4%) | August 31, 2026 |
| 18 | JPMorgan Mid Cap Growth I | 0.21% | 502K | $63.9M | −71,831 (−12.5%) | August 31, 2026 |
| 19 | Fidelity Blue Chip Growth | 0.16% | 368K | $46.9M | +113,900 (+44.8%) | August 31, 2026 |
| 20 | State Street® SPDR® S&P® Smcndctr ETF | 0.15% | 368K | $46.8M | +1,560 (+0.4%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
CBRS shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns CBRS
Institutional investors own 80.4% of Cerebras Systems's shares and insiders 9.60%. The largest holder is ECLIPSE VENTURES, LLC with 4.82% of the shares (11.4M), as of June 30, 2026. Among the top 20 institutions, 20 added shares and 0 reduced their stake in the latest filings. Short interest is 12.58% of the float, or 2.22 days of average trading volume.
Related: CBRS analyst forecast, CBRS key metrics. See the CBRS stock overview for the latest quote and news.
CBRS ownership FAQ
Who owns the most Cerebras Systems stock?
The largest shareholders of Cerebras Systems are ECLIPSE VENTURES, LLC (4.82%), FMR Inc (3.55%), Altimeter Capital Management, LLC (3.04%), Coatue Management LLC (2.95%), Capital World Investors (1.64%).
What percentage of Cerebras Systems is owned by institutions?
Institutions hold 80.4% of Cerebras Systems's shares outstanding; insiders hold 9.60%.
Which funds own Cerebras Systems?
The largest fund holders of Cerebras Systems are iShares Semiconductor ETF (0.96%), American Funds IS® Growth 1 (0.94%), Fidelity Advisor Growth Opps M (0.88%), Fidelity Select Semiconductors (0.60%), Fidelity Select Technology (0.51%).
What is Cerebras Systems's short interest?
14.1M shares of Cerebras Systems were sold short, 12.58% of the float; at the average daily volume it would take 2.22 days to cover.
How many shares of Cerebras Systems are outstanding?
Cerebras Systems has 112.2M shares outstanding, of which 109.9M are in the public float.