Who owns Rocket Pharmaceuticals (RCKT)
Which tracked institutional funds hold RCKT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See RCKT company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
25 tracked funds added or opened RCKT while 25 trimmed or exited it between 2026-Q1 and 2026-Q2 — 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
RCKT’s largest tracked holder by dollar value, RTW INVESTMENTS, LP, sizes it at 0.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in RCKT 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 2026-Q1 and 2026-Q2, across 182 tracked filers holding RCKT, 91 increased or opened the position and 107 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 RCKT between the 2026-Q1 and 2026-Q2 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 3
- Qube Research & Technologies Ltd$2M
- LOS ANGELES CAPITAL MANAGEMENT LLC$1M
- BIT Capital GmbH$1M
Full exits 4
- JANE STREET GROUP, LLC$2M
- CWM, LLC$624K
- MONIMUS CAPITAL MANAGEMENT, LP$550K
- Rafferty Asset Management, LLC$506K
Largest adds
- BlackRock, Inc.$6M
- JACOBS LEVY EQUITY MANAGEMENT, INC$5M
- FEDERATED HERMES, INC.$4M
- JPMORGAN CHASE & CO$4M
- GOLDMAN SACHS GROUP INC$4M
- VANGUARD PORTFOLIO MANAGEMENT LLC$3M
Largest trims
- Nuveen, LLC$11M
- STATE STREET CORP$10M
- D. E. Shaw & Co., Inc.$4M
- UBS Group AG$4M
- MORGAN STANLEY$4M
- TWO SIGMA INVESTMENTS, LP$3M
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 |
|---|---|---|---|---|
| RTW INVESTMENTS, LP added | 17,687,772 | $60M | 14.9% | 2026-Q2 |
| BlackRock, Inc. added | 9,923,962 | $34M | 8.4% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 5,810,033 | $20M | 4.9% | 2026-Q2 |
| CITIGROUP INC trimmed | 4,865,551 | $17M | 4.1% | 2026-Q2 |
| MARSHALL WACE, LLP added | 4,029,262 | $14M | 3.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 4,000,344 | $14M | 3.4% | 2026-Q2 |
| Newtyn Management, LLC added | 4,000,000 | $14M | 3.4% | 2026-Q2 |
| MAVERICK CAPITAL LTD added | 3,923,963 | $13M | 3.3% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 3,784,387 | $13M | 3.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 3,386,162 | $12M | 2.9% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 2,833,427 | $10M | 2.4% | 2026-Q2 |
| Monaco Asset Management SAM added | 2,480,468 | $8M | 2.1% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,370,729 | $8M | 2.0% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 2,304,207 | $8M | 1.9% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 1,974,896 | $7M | 1.7% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 1,988,413 | $7M | 1.7% | 2026-Q2 |
| STATE STREET CORP trimmed | 1,820,121 | $6M | 1.5% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 1,125,500 | $4M | 0.9% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,062,522 | $4M | 0.9% | 2026-Q2 |
| Opaleye Management Inc. added | 1,000,000 | $3M | 0.8% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 950,552 | $3M | 0.8% | 2026-Q2 |
| Jump Financial, LLC added | 867,900 | $3M | 0.7% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 792,974 | $3M | 0.7% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 749,073 | $3M | 0.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 735,090 | $3M | 0.6% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 734,584 | $3M | 0.6% | 2026-Q2 |
| Prosight Management, LP added | 700,000 | $2M | 0.6% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 670,527 | $2M | 0.6% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 644,869 | $2M | 0.5% | 2026-Q2 |
| Woodline Partners LP | 641,222 | $2M | 0.5% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 592,844 | $2M | 0.5% | 2026-Q2 |
| FMR LLC added | 488,299 | $2M | 0.4% | 2026-Q2 |
| IEQ CAPITAL, LLC added | 440,255 | $2M | 0.4% | 2026-Q2 |
| ADAR1 Capital Management, LLC added | 435,500 | $1M | 0.4% | 2026-Q2 |
| Aberdeen Group plc trimmed | 397,727 | $1M | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 387,065 | $1M | 0.3% | 2026-Q2 |
| Invesco Ltd. added | 383,316 | $1M | 0.3% | 2026-Q2 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 348,093 | $1M | 0.3% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 332,106 | $1M | 0.3% | 2026-Q2 |
| LPL Financial LLC added | 321,836 | $1M | 0.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 315,761 | $1M | 0.3% | 2026-Q2 |
| BIT Capital GmbH new | 298,000 | $1M | 0.3% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 275,009 | $941K | 0.2% | 2026-Q2 |
| Bank of New York Mellon Corp added | 259,809 | $889K | 0.2% | 2026-Q2 |
| Privium Fund Management B.V. added | 244,146 | $835K | 0.2% | 2026-Q2 |
| Hennion & Walsh Asset Management, Inc. trimmed | 224,927 | $769K | 0.2% | 2026-Q2 |
| M28 Capital Management LP | 210,871 | $721K | 0.2% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 195,650 | $700K | 0.2% | 2026-Q2 |
| UBS Group AG added | 201,642 | $690K | 0.2% | 2026-Q2 |
| Nuveen, LLC trimmed | 199,794 | $683K | 0.2% | 2026-Q2 |
| Mariner, LLC added | 198,662 | $679K | 0.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 187,415 | $641K | 0.2% | 2026-Q2 |
| PDT Partners, LLC | 186,596 | $638K | 0.2% | 2026-Q2 |
| Squarepoint Ops LLC added | 181,147 | $620K | 0.2% | 2026-Q2 |
| Amitell Capital Pte Ltd | 178,769 | $611K | 0.2% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 158,502 | $542K | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 152,631 | $522K | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 150,933 | $516K | 0.1% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO new | 135,100 | $462K | 0.1% | 2026-Q2 |
| Jain Global LLC added | 134,665 | $461K | 0.1% | 2026-Q2 |
| Creative Planning trimmed | 131,583 | $450K | 0.1% | 2026-Q2 |
| Virtus Investment Advisers, LLC added | 118,981 | $407K | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 111,412 | $381K | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC trimmed | 110,666 | $378K | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 108,028 | $369K | 0.1% | 2026-Q2 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added | 91,568 | $358K | 0.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 101,614 | $348K | 0.1% | 2026-Q2 |
| TANG CAPITAL MANAGEMENT LLC | 100,000 | $342K | 0.1% | 2026-Q2 |
| RICE HALL JAMES & ASSOCIATES, LLC added | 96,469 | $330K | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 94,727 | $324K | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 94,264 | $322K | 0.1% | 2026-Q2 |
| Cerity Partners LLC added | 91,825 | $314K | 0.1% | 2026-Q2 |
| VANGUARD GROUP INC added | 8,544,423 | $30M | 7.4% | 2025-Q4 stale (2 quarters behind) |
| SUVRETTA CAPITAL MANAGEMENT, LLC trimmed | 2,992,735 | $11M | 2.6% | 2025-Q4 stale (2 quarters behind) |
| TWO SIGMA ADVISERS, LP added | 1,864,651 | $7M | 1.6% | 2025-Q4 stale (2 quarters behind) |
| MPM BIOIMPACT LLC trimmed | 1,586,076 | $6M | 1.4% | 2025-Q4 stale (2 quarters behind) |
| DekaBank Deutsche Girozentrale | 89,700 | $3M | 0.7% | 2025-Q4 stale (2 quarters behind) |
| JANE STREET GROUP, LLC added | 623,354 | $2M | 0.5% | 2026-Q1 stale (1 quarter behind) |
| Cubist Systematic Strategies, LLC added | 718,781 | $2M | 0.4% | 2025-Q2 stale (4 quarters behind) |
| Siren, L.L.C. | 591,263 | $1M | 0.4% | 2025-Q2 stale (4 quarters behind) |
| BAKER BROS. ADVISORS LP trimmed | 552,079 | $1M | 0.3% | 2025-Q2 stale (4 quarters behind) |
| PANAGORA ASSET MANAGEMENT INC new | 348,803 | $1M | 0.3% | 2025-Q4 stale (2 quarters behind) |
| Voss Capital, LP trimmed | 300,000 | $978K | 0.2% | 2025-Q3 stale (3 quarters behind) |
| ACADIAN ASSET MANAGEMENT LLC added | 242,169 | $847K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| ALGERT GLOBAL LLC added | 341,760 | $837K | 0.2% | 2025-Q2 stale (4 quarters behind) |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC new | 274,875 | $673K | 0.2% | 2025-Q2 stale (4 quarters behind) |
| NORDEA INVESTMENT MANAGEMENT AB added | 263,746 | $659K | 0.2% | 2025-Q2 stale (4 quarters behind) |
| CWM, LLC added | 174,263 | $624K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Sovran Advisors, LLC trimmed | 196,028 | $580K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| MONIMUS CAPITAL MANAGEMENT, LP added | 153,728 | $550K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| SUPERSTRING CAPITAL MANAGEMENT LP new | 214,412 | $525K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| Rafferty Asset Management, LLC trimmed | 141,212 | $506K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Birchview Capital, LP new | 127,025 | $455K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| OCCUDO QUANTITATIVE STRATEGIES LP new | 184,658 | $452K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| Virtu Financial LLC added | 113,548 | $407K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP added | 109,797 | $385K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| DARK FOREST CAPITAL MANAGEMENT LP added | 153,814 | $377K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| Swiss National Bank | 153,700 | $377K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| EntryPoint Capital, LLC trimmed | 96,354 | $338K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| MYDA Advisors LLC | 100,000 | $326K | 0.1% | 2025-Q3 stale (3 quarters behind) |
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.