Who owns ARVN (ARVN)
Which tracked institutional funds hold ARVN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ARVN 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
32 tracked funds added or opened ARVN while 58 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
ARVN’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes ARVN more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in ARVN 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 207 tracked filers holding ARVN, 99 increased or opened the position and 102 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
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 ARVN 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 11
- VANGUARD PORTFOLIO MANAGEMENT LLC$41M
- VANGUARD CAPITAL MANAGEMENT LLC$29M
- Vestal Point Capital, LP$10M
- NORGES BANK$7M
- VANGUARD FIDUCIARY TRUST CO$4M
- SUPERSTRING CAPITAL MANAGEMENT LP$3M
Full exits 14
- VANGUARD GROUP INC$80M
- TWO SIGMA ADVISERS, LP$7M
- Arbiter Partners Capital Management LLC$5M
- Balyasny Asset Management L.P.$3M
- DekaBank Deutsche Girozentrale$2M
- HUSSMAN STRATEGIC ADVISORS, INC.$1M
Largest adds
- JACOBS LEVY EQUITY MANAGEMENT, INC$12M
- TWO SIGMA INVESTMENTS, LP$8M
- CITADEL ADVISORS LLC$8M
- PRICE T ROWE ASSOCIATES INC /MD/$4M
- Nuveen, LLC$3M
- AMERIPRISE FINANCIAL INC$2M
Largest trims
- Point72 Asset Management, L.P.$25M
- BlackRock, Inc.$15M
- MILLENNIUM MANAGEMENT LLC$9M
- TCG Crossover Management, LLC$6M
- Pfizer Inc$6M
- GOLDMAN SACHS GROUP INC$5M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 6,797,584 | $72M | 8.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 3,889,628 | $41M | 5.0% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 3,638,567 | $39M | 4.7% | 2026-Q1 |
| Pfizer Inc | 3,457,815 | $35M | 4.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,689,362 | $29M | 3.5% | 2026-Q1 |
| TCG Crossover Management, LLC trimmed | 2,387,461 | $25M | 3.1% | 2026-Q1 |
| ARMISTICE CAPITAL, LLC added | 1,978,000 | $21M | 2.5% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,832,114 | $19M | 2.4% | 2026-Q1 |
| STATE STREET CORP trimmed | 1,828,472 | $19M | 2.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 1,557,107 | $17M | 2.0% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 1,441,521 | $15M | 1.9% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 1,201,635 | $13M | 1.5% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 1,180,988 | $13M | 1.5% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 1,140,715 | $12M | 1.5% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 949,874 | $10M | 1.2% | 2026-Q1 |
| Vestal Point Capital, LP new | 905,465 | $10M | 1.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 756,875 | $8M | 1.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 674,718 | $7M | 0.9% | 2026-Q1 |
| NORGES BANK trimmed | 1,007,912 | $7M | 0.9% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 576,352 | $6M | 0.7% | 2026-Q1 |
| KENNEDY CAPITAL MANAGEMENT LLC added | 552,641 | $6M | 0.7% | 2026-Q1 |
| Nextech Invest, Ltd. | 539,394 | $6M | 0.7% | 2026-Q1 |
| TANG CAPITAL MANAGEMENT LLC trimmed | 538,658 | $6M | 0.7% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 525,174 | $6M | 0.7% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 520,955 | $6M | 0.7% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 485,764 | $5M | 0.6% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 474,503 | $5M | 0.6% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 427,093 | $5M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 412,596 | $4M | 0.5% | 2026-Q1 |
| Nuveen, LLC added | 406,340 | $4M | 0.5% | 2026-Q1 |
| Ikarian Capital, LLC | 358,257 | $4M | 0.5% | 2026-Q1 |
| Invesco Ltd. added | 316,654 | $3M | 0.4% | 2026-Q1 |
| SUPERSTRING CAPITAL MANAGEMENT LP new | 312,620 | $3M | 0.4% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC | 301,245 | $3M | 0.4% | 2026-Q1 |
| Nantahala Capital Management, LLC | 300,000 | $3M | 0.4% | 2026-Q1 |
| Brummer Multi-Strategy AB added | 285,076 | $3M | 0.4% | 2026-Q1 |
| WASATCH ADVISORS LP added | 281,857 | $3M | 0.4% | 2026-Q1 |
| HRT FINANCIAL LP added | 270,302 | $3M | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 269,013 | $3M | 0.3% | 2026-Q1 |
| CAXTON ASSOCIATES LLP trimmed | 260,016 | $3M | 0.3% | 2026-Q1 |
| NOMURA HOLDINGS INC added | 253,609 | $3M | 0.3% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 251,012 | $3M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 236,714 | $3M | 0.3% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 229,807 | $2M | 0.3% | 2026-Q1 |
| Rangeley Capital, LLC trimmed | 223,990 | $2M | 0.3% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 216,788 | $2M | 0.3% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 199,908 | $2M | 0.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 185,495 | $2M | 0.2% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 180,000 | $2M | 0.2% | 2026-Q1 |
| ALGERT GLOBAL LLC trimmed | 179,496 | $2M | 0.2% | 2026-Q1 |
| Y-Intercept (Hong Kong) Ltd added | 172,808 | $2M | 0.2% | 2026-Q1 |
| J. Goldman & Co LP added | 156,799 | $2M | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 147,522 | $2M | 0.2% | 2026-Q1 |
| Trexquant Investment LP trimmed | 146,387 | $2M | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 143,313 | $1M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 137,185 | $1M | 0.2% | 2026-Q1 |
| Jump Financial, LLC trimmed | 133,818 | $1M | 0.2% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 133,252 | $1M | 0.2% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 131,974 | $1M | 0.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 116,800 | $1M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 110,974 | $1M | 0.1% | 2026-Q1 |
| LPL Financial LLC trimmed | 110,694 | $1M | 0.1% | 2026-Q1 |
| Swiss National Bank trimmed | 108,000 | $1M | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 97,611 | $1M | 0.1% | 2026-Q1 |
| Man Group plc trimmed | 90,969 | $964K | 0.1% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 89,147 | $958K | 0.1% | 2026-Q1 |
| FMR LLC added | 88,232 | $935K | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC added | 86,231 | $914K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 6,737,004 | $80M | 9.7% | 2025-Q4 stale |
| Logos Global Management LP added | 5,575,000 | $47M | 5.8% | 2025-Q3 stale |
| RTW INVESTMENTS, LP | 3,334,308 | $23M | 2.8% | 2025-Q1 stale |
| New Leaf Venture Partners, L.L.C. | 1,585,721 | $14M | 1.6% | 2025-Q3 stale |
| Alyeska Investment Group, L.P. added | 1,800,000 | $13M | 1.5% | 2025-Q1 stale |
| Caption Management, LLC added | 1,343,029 | $10M | 1.2% | 2025-Q2 stale |
| Opaleye Management Inc. trimmed | 987,818 | $8M | 1.0% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP added | 619,900 | $7M | 0.9% | 2025-Q4 stale |
| Philosophy Capital Management LLC new | 996,032 | $7M | 0.8% | 2025-Q1 stale |
| Avidity Partners Management LP added | 698,363 | $6M | 0.7% | 2025-Q3 stale |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 669,655 | $6M | 0.7% | 2025-Q3 stale |
| Arbiter Partners Capital Management LLC | 452,789 | $5M | 0.7% | 2025-Q4 stale |
| Woodline Partners LP added | 695,945 | $5M | 0.6% | 2025-Q1 stale |
| Finepoint Capital LP trimmed | 694,028 | $5M | 0.6% | 2025-Q1 stale |
| Schonfeld Strategic Advisors LLC trimmed | 561,431 | $5M | 0.6% | 2025-Q3 stale |
| T. Rowe Price Investment Management, Inc. trimmed | 548,104 | $4M | 0.5% | 2025-Q1 stale |
| Velan Capital Investment Management LP new | 500,000 | $4M | 0.4% | 2025-Q2 stale |
| Madison Avenue Partners, LP new | 500,000 | $4M | 0.4% | 2025-Q2 stale |
| Balyasny Asset Management L.P. trimmed | 261,756 | $3M | 0.4% | 2025-Q4 stale |
| 22NW, LP new | 413,533 | $3M | 0.4% | 2025-Q2 stale |
| Aquilo Capital Management, LLC added | 360,766 | $3M | 0.3% | 2025-Q1 stale |
| Centiva Capital, LP trimmed | 275,663 | $2M | 0.2% | 2025-Q2 stale |
| Campbell & CO Investment Adviser LLC added | 223,576 | $2M | 0.2% | 2025-Q3 stale |
| DekaBank Deutsche Girozentrale | 42,000 | $2M | 0.2% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC added | 187,643 | $2M | 0.2% | 2025-Q3 stale |
| MACQUARIE GROUP LTD | 180,000 | $2M | 0.2% | 2025-Q3 stale |
| Exome Asset Management LLC trimmed | 195,295 | $1M | 0.2% | 2025-Q1 stale |
| Rhenman & Partners Asset Management AB added | 183,000 | $1M | 0.2% | 2025-Q1 stale |
| HUSSMAN STRATEGIC ADVISORS, INC. new | 105,000 | $1M | 0.2% | 2025-Q4 stale |
| EDMOND DE ROTHSCHILD HOLDING S.A. | 130,000 | $1M | 0.1% | 2025-Q3 stale |
| Verition Fund Management LLC added | 91,999 | $1M | 0.1% | 2025-Q4 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 91,019 | $1M | 0.1% | 2025-Q4 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.