Who owns BULL (BULL)
Which tracked institutional funds hold BULL, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BULL company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
31 tracked funds added or opened BULL while 54 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
BULL’s largest tracked holder by dollar value, PEAK6 LLC, sizes it at 4.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 4.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BULL divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 194 tracked filers holding BULL, 131 increased or opened the position and 78 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in BULL between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 18
- AQR CAPITAL MANAGEMENT LLC$16M
- HRT FINANCIAL LP$15M
- TUDOR INVESTMENT CORP ET AL$9M
- VANGUARD PORTFOLIO MANAGEMENT LLC$8M
- IEQ CAPITAL, LLC$3M
- Greenland Capital Management LP$2M
Full exits 10
- Yong Rong (HK) Asset Management Ltd$39M
- Azora Capital LP$14M
- VANGUARD GROUP INC$13M
- XTX Topco Ltd$2M
- Squarepoint Ops LLC$1M
- PDT Partners, LLC$1M
Largest adds
- Divisadero Street Capital Management, LP$40M
- DEUTSCHE BANK AG\$8M
- Qube Research & Technologies Ltd$5M
- RENAISSANCE TECHNOLOGIES LLC$5M
- Nuveen, LLC$4M
- GOLDMAN SACHS GROUP INC$3M
Largest trims
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$86M
- HS Investments IV Ltd$42M
- BlackRock, Inc.$42M
- HHLR ADVISORS, LTD.$39M
- PEAK6 LLC$34M
- JANE STREET GROUP, LLC$22M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| PEAK6 LLC added | 30,111,935 | $145M | 12.0% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 27,339,154 | $131M | 10.9% | 2026-Q1 |
| BlackRock, Inc. added | 15,830,501 | $76M | 6.3% | 2026-Q1 |
| HS Investments IV Ltd | 14,126,289 | $68M | 5.6% | 2026-Q1 |
| HSG Holding Ltd | 7,053,639 | $55M | 4.6% | 2026-Q1 |
| Divisadero Street Capital Management, LP added | 9,548,219 | $46M | 3.8% | 2026-Q1 |
| TIGER GLOBAL MANAGEMENT LLC | 6,724,137 | $32M | 2.7% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 6,496,910 | $31M | 2.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 5,918,751 | $28M | 2.4% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 4,891,391 | $23M | 1.9% | 2026-Q1 |
| STATE STREET CORP added | 4,809,163 | $23M | 1.9% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 3,760,301 | $18M | 1.5% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC new | 3,295,110 | $16M | 1.3% | 2026-Q1 |
| UBS Group AG added | 3,226,045 | $15M | 1.3% | 2026-Q1 |
| HRT FINANCIAL LP added | 3,128,863 | $15M | 1.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 2,042,120 | $10M | 0.8% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL new | 1,795,116 | $9M | 0.7% | 2026-Q1 |
| Nuveen, LLC added | 1,777,373 | $9M | 0.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,603,952 | $8M | 0.6% | 2026-Q1 |
| Marex Group plc trimmed | 1,553,810 | $7M | 0.6% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,535,199 | $7M | 0.6% | 2026-Q1 |
| HHLR ADVISORS, LTD. trimmed | 1,500,000 | $7M | 0.6% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,433,604 | $7M | 0.6% | 2026-Q1 |
| Aquatic Capital Management LLC added | 1,126,874 | $5M | 0.4% | 2026-Q1 |
| Tidal Investments LLC trimmed | 1,101,926 | $5M | 0.4% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 1,083,915 | $5M | 0.4% | 2026-Q1 |
| Trexquant Investment LP trimmed | 953,563 | $5M | 0.4% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 887,960 | $4M | 0.3% | 2026-Q1 |
| GROUP ONE TRADING LLC trimmed | 829,943 | $4M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp added | 748,970 | $4M | 0.3% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 738,600 | $4M | 0.3% | 2026-Q1 |
| MORGAN STANLEY trimmed | 690,806 | $3M | 0.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 606,700 | $3M | 0.2% | 2026-Q1 |
| IEQ CAPITAL, LLC new | 564,958 | $3M | 0.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 543,224 | $3M | 0.2% | 2026-Q1 |
| CANTOR FITZGERALD, L. P. trimmed | 534,608 | $3M | 0.2% | 2026-Q1 |
| CAPITAL FUND MANAGEMENT S.A. added | 501,319 | $2M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 492,458 | $2M | 0.2% | 2026-Q1 |
| BARCLAYS PLC trimmed | 464,182 | $2M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. | 267,600 | $2M | 0.2% | 2026-Q1 |
| Greenland Capital Management LP new | 400,000 | $2M | 0.2% | 2026-Q1 |
| Mariner, LLC added | 389,283 | $2M | 0.2% | 2026-Q1 |
| Quantbot Technologies LP added | 384,414 | $2M | 0.2% | 2026-Q1 |
| Blackstone Inc. new | 352,835 | $2M | 0.1% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ trimmed | 345,073 | $2M | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 336,953 | $2M | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP new | 330,062 | $2M | 0.1% | 2026-Q1 |
| Invesco Ltd. added | 293,024 | $1M | 0.1% | 2026-Q1 |
| Verition Fund Management LLC trimmed | 290,027 | $1M | 0.1% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 283,866 | $1M | 0.1% | 2026-Q1 |
| CWM, LLC new | 247,806 | $1M | 0.1% | 2026-Q1 |
| SummitTX Capital, L.P. added | 245,192 | $1M | 0.1% | 2026-Q1 |
| Corient Private Wealth LLC new | 230,528 | $1M | 0.1% | 2026-Q1 |
| Vident Advisory, LLC added | 223,389 | $1M | 0.1% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 220,490 | $1M | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 212,700 | $1M | 0.1% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 207,385 | $995K | 0.1% | 2026-Q1 |
| Walleye Trading LLC trimmed | 205,392 | $986K | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 198,042 | $951K | 0.1% | 2026-Q1 |
| Virtu Financial LLC added | 174,548 | $838K | 0.1% | 2026-Q1 |
| OCCUDO QUANTITATIVE STRATEGIES LP new | 109,302 | $747K | 0.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. new | 146,441 | $703K | 0.1% | 2026-Q1 |
| MetLife Investment Management, LLC trimmed | 143,500 | $689K | 0.1% | 2026-Q1 |
| Perbak Capital Partners LLP new | 137,267 | $659K | 0.1% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 124,226 | $596K | 0.0% | 2026-Q1 |
| COATUE MANAGEMENT LLC | 74,334 | $578K | 0.0% | 2026-Q1 |
| MERCER GLOBAL ADVISORS INC /ADV new | 120,212 | $577K | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 119,435 | $573K | 0.0% | 2026-Q1 |
| LPL Financial LLC trimmed | 112,759 | $541K | 0.0% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 107,634 | $517K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 105,645 | $507K | 0.0% | 2026-Q1 |
| TWINBEECH CAPITAL LP added | 105,500 | $506K | 0.0% | 2026-Q1 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC new | 115,531 | $505K | 0.0% | 2026-Q1 |
| INTECH INVESTMENT MANAGEMENT LLC new | 102,049 | $490K | 0.0% | 2026-Q1 |
| FORA Capital, LLC new | 100,937 | $484K | 0.0% | 2026-Q1 |
| RIT CAPITAL PARTNERS PLC | 10,007,267 | $118M | 9.8% | 2025-Q3 stale |
| LIGHTSPEED MANAGEMENT COMPANY, L.L.C. | 7,148,051 | $106M | 8.8% | 2025-Q3 stale |
| Yong Rong (HK) Asset Management Ltd new | 5,000,000 | $39M | 3.2% | 2025-Q4 stale |
| Azora Capital LP trimmed | 1,800,423 | $14M | 1.2% | 2025-Q4 stale |
| VANGUARD GROUP INC new | 1,675,316 | $13M | 1.1% | 2025-Q4 stale |
| Archon Capital Management LLC new | 350,000 | $5M | 0.4% | 2025-Q3 stale |
| Jain Global LLC new | 303,625 | $4M | 0.3% | 2025-Q2 stale |
| Hidden Lake Asset Management LP new | 154,370 | $2M | 0.2% | 2025-Q3 stale |
| Harraden Circle Investments, LLC new | 150,000 | $2M | 0.2% | 2025-Q3 stale |
| AQR Arbitrage LLC | 146,070 | $2M | 0.2% | 2025-Q3 stale |
| XTX Topco Ltd added | 244,344 | $2M | 0.2% | 2025-Q4 stale |
| Sassicaia Capital Advisers LLC new | 148,000 | $2M | 0.1% | 2025-Q2 stale |
| Y-Intercept (Hong Kong) Ltd new | 114,231 | $2M | 0.1% | 2025-Q3 stale |
| Squarepoint Ops LLC added | 181,532 | $1M | 0.1% | 2025-Q4 stale |
| Atlas Merchant Capital LLC new | 87,000 | $1M | 0.1% | 2025-Q3 stale |
| PDT Partners, LLC new | 164,200 | $1M | 0.1% | 2025-Q4 stale |
| CSS LLC/IL new | 101,439 | $1M | 0.1% | 2025-Q2 stale |
| Atom Investors LP new | 139,917 | $1M | 0.1% | 2025-Q4 stale |
| Cable Car Capital, LP new | 87,500 | $1M | 0.1% | 2025-Q2 stale |
| Sandia Investment Management LP | 64,497 | $954K | 0.1% | 2025-Q3 stale |
| MOORE CAPITAL MANAGEMENT, LP | 60,000 | $887K | 0.1% | 2025-Q3 stale |
| Magnetar Financial LLC new | 113,485 | $882K | 0.1% | 2025-Q4 stale |
| Qsemble Capital Management, LP added | 105,889 | $823K | 0.1% | 2025-Q4 stale |
| IMC-Chicago, LLC new | 98,135 | $763K | 0.1% | 2025-Q4 stale |
| Marathon Trading Investment Management LLC new | 50,041 | $598K | 0.0% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.