Cerebras · ownership
Who owns Cerebras?
ECLIPSE OPERATIONS, LLC is the largest 13F holder: 13.0% of 13F-reported shares calc.
411 institutions report 88.3M Cerebras shares in Form 13F, as of quarter end Jun 30, 2026.
- ECLIPSE OPERATIONS, LLC13.0%11.4M shares · +11.4M vs prior quarter (new position) · 13F filed Aug 7, 2026
- FMR LLC9.6%8.4M shares · +8.4M vs prior quarter (new position) · 13F filed Aug 13, 2026
- Altimeter Capital Management, LP8.2%7.2M shares · +7.2M vs prior quarter (new position) · 13F filed Aug 14, 2026
- COATUE MANAGEMENT LLC7.9%7.0M shares · +7.0M vs prior quarter (new position) · 13F filed Aug 14, 2026
- Capital World Investors4.4%3.9M shares · +3.9M vs prior quarter (new position) · 13F filed Aug 12, 2026
- MORGAN STANLEY3.7%3.2M shares · +3.2M vs prior quarter (new position) · 13F filed Aug 13, 2026
- Atreides Management, LP3.5%3.1M shares · +3.1M vs prior quarter (new position) · 13F filed Aug 14, 2026
- JPMORGAN CHASE & CO3.5%3.1M shares · +3.1M vs prior quarter (new position) · 13F filed Aug 12, 2026
- TIGER GLOBAL MANAGEMENT LLC3.4%3.0M shares · +3.0M vs prior quarter (new position) · 13F filed Aug 14, 2026
- VY Capital Management Co. Ltd.2.4%2.1M shares · no prior 13F · 13F filed Aug 18, 2026
- BlackRock, Inc.2.3%2.1M shares · +2.1M vs prior quarter (new position) · 13F filed Aug 7, 2026
- PRICE T ROWE ASSOCIATES INC /MD/2.3%2.0M shares · +2.0M vs prior quarter (new position) · 13F filed Aug 14, 2026
- VANGUARD PORTFOLIO MANAGEMENT LLC1.8%1.6M shares · +1.6M vs prior quarter (new position) · 13F filed Aug 13, 2026
- VANGUARD CAPITAL MANAGEMENT LLC1.6%1.4M shares · +1.4M vs prior quarter (new position) · 13F filed Aug 13, 2026
- CITADEL ADVISORS LLC1.4%1.2M shares · +1.2M vs prior quarter (new position) · 13F filed Aug 14, 2026
- Balyasny Asset Management L.P.1.3%1.1M shares · +1.1M vs prior quarter (new position) · 13F filed Aug 14, 2026
- Value Aligned Research Advisors, LLC1.2%1.1M shares · +1.1M vs prior quarter (new position) · 13F filed Aug 17, 2026
- HARVARD MANAGEMENT CO INC1.2%1.1M shares · +1.1M vs prior quarter (new position) · 13F filed Aug 14, 2026
- Capital Research Global Investors1.0%883K shares · +883K vs prior quarter (new position) · 13F filed Aug 12, 2026
- WELLINGTON MANAGEMENT GROUP LLP1.0%882K shares · +882K vs prior quarter (new position) · 13F filed Aug 14, 2026
Share of 13F-reported shares, not of shares outstanding. 13F covers managers with over $100M in US equities; it is not a full shareholder list.
Method and sources
Source: SEC Form 13F data sets (bulk). Each row links to the holder’s own 13F-HR filing. Holder names exactly as filed; one group can file under several names and CIKs (for example two Vanguard entities), and they are listed separately, as filed.
% = the holder’s shares ÷ all shares reported in 13F filings for this company and quarter (calculated by Hollsteen). This is not a share of shares outstanding. Change = shares vs the same filer’s 13F for the prior quarter (Mar 31, 2026).
Erroneous filings and rows are handled by a fixed rule set (restatements replace originals; non-equity rows and implausible rows excluded): 6 erroneous filings excluded or replaced this quarter. No market values are shown.
SEC filings only. No price or market data.
Who holds more than 5%?
9 current Schedule 13D/13G holders
Schedule 13D/13G filings (11) ›
- FMR LLC 25.7%
13G/A filed Jul 8, 2026 · event date Jun 30, 2026 · 1 earlier filing
- Foundation Capital Management Co. VIII, L.L.C. 12.2%
13G filed Aug 14, 2026 · event date Jun 30, 2026
- Atreides Management, LP 10.7%
13G filed Aug 14, 2026 · event date Jun 30, 2026
- Feldman Andrew D. 9.2%
13G filed Aug 14, 2026 · event date Jun 30, 2026
- TIGER GLOBAL MANAGEMENT LLC 8.69%
13G filed May 22, 2026 · event date May 15, 2026
- Benchmark Capital Partners VIII, L.P. 7.7%
13G filed Aug 14, 2026 · event date Jun 30, 2026
- COATUE MANAGEMENT LLC 7.1%
13G filed Aug 14, 2026 · event date Jun 30, 2026
- Altimeter Capital Management, LP 6.2%
13G filed Aug 14, 2026 · event date Jun 30, 2026
- JANE STREET GROUP, LLC 5.1%
13G filed Aug 13, 2026 · event date Jun 30, 2026
- Eclipse Continuity GP I, LLC 0.2%
below 5% latest filing reports under 5% · 13D/A filed Aug 18, 2026 · event date Aug 14, 2026 · 2 earlier filings
- JPMORGAN CHASE & CO 3.3%
below 5% latest filing reports under 5% · 13G/A filed Jul 22, 2026 · event date Jun 30, 2026 · 1 earlier filing
Method and sources
Schedule 13D (active) and 13G (passive) are filed by holders of more than 5% of a class. The percentage is the holder’s own cover-page “percent of class”. A filing older than 18 months (filed before 2025-04-17) is marked stale and is never shown as a current holding. Data as of Oct 15, 2026.
SEC filings only.
Are insiders buying or selling?
0 open-market purchases, 333 sales in 12 months
Form 4, Oct 15, 2025 – Oct 15, 2026 · 0 shares bought, 1,981,999 shares sold (net −2.0M) · as of Oct 15, 2026
Latest 25 of 481 Form 4 transactions ›
| Date | Insider (as filed) | Transaction | Shares | Held after |
|---|---|---|---|---|
| Oct 5, 2026 | Feldman Andrew D. · Director; CEO, President | Other | 159 acquired | 1,085 |
| Oct 5, 2026 | Vishria Eric · Director | Other · 10b5-1 | 59,126 acquired | 334,980 |
| Sep 30, 2026 | Susan Lior · Director | Other | 1,198,489 disposed | 5,292,222 |
| Sep 30, 2026 | Susan Lior · Director | Other | 68,428 acquired | 420,355 |
| Sep 30, 2026 | Susan Lior · Director | Other | 63,056 acquired | 372,659 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 1,830 disposed | 30,670 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 2,771 disposed | 27,899 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 2,802 disposed | 25,097 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 2,197 disposed | 22,900 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 700 disposed | 22,200 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 800 disposed | 21,400 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 600 disposed | 20,800 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 1,600 disposed | 19,200 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 800 disposed | 18,400 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 400 disposed | 18,000 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 11,200 disposed | 6,800 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 1,130 disposed | 5,670 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 870 disposed | 4,800 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 685 disposed | 4,115 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 1,115 disposed | 3,000 |
| Sep 29, 2026 | Komin Robert Patrick Jr. · Chief Financial Officer | Open-market sale · 10b5-1 | 3,000 disposed | 0 |
| Sep 29, 2026 | Mallick Dhiraj · Chief Operating Officer | Conversion · 10b5-1 | 276,000 acquired | 396,000 |
| Sep 29, 2026 | Mallick Dhiraj · Chief Operating Officer | Open-market sale · 10b5-1 | 598 disposed | 395,402 |
| Sep 29, 2026 | Mallick Dhiraj · Chief Operating Officer | Open-market sale · 10b5-1 | 18,274 disposed | 377,128 |
| Sep 29, 2026 | Mallick Dhiraj · Chief Operating Officer | Open-market sale · 10b5-1 | 41,391 disposed | 335,737 |
Method and sources
Form 4 filings (not 4/A), table I. Open market = transaction codes P (purchase) and S (sale); grants, option exercises, tax withholding and gifts are listed but not counted as buys or sells. Shares and share counts only, as filed; Hollsteen shows no per-share prices. Data is an export, as of Oct 15, 2026, not live.
SEC filings only.