Who owns Absci Corporation (ABSI)
Which tracked institutional funds hold ABSI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ABSI company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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
21 tracked funds added or opened ABSI while 32 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
ABSI’s largest tracked holder by dollar value, FMR LLC, 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 conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ABSI 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 166 tracked filers holding ABSI, 97 increased or opened the position and 60 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 ABSI 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 CAPITAL MANAGEMENT LLC$18M
- Siren, L.L.C.$5M
- MARSHALL WACE, LLP$4M
- GROUP ONE TRADING LLC$3M
- BALYASNY ASSET MANAGEMENT L.P.$3M
- VANGUARD FIDUCIARY TRUST CO$3M
Full exits 3
- VANGUARD GROUP INC$24M
- HEIGHTS CAPITAL MANAGEMENT, INC$4M
- TWO SIGMA ADVISERS, LP$1M
Largest adds
- TWO SIGMA INVESTMENTS, LP$4M
- MILLENNIUM MANAGEMENT LLC$3M
- Woodline Partners LP$2M
- AQR CAPITAL MANAGEMENT LLC$2M
- STATE STREET CORP$1M
- XTX Topco Ltd$673K
Largest trims
- FMR LLC$10M
- Schonfeld Strategic Advisors LLC$7M
- PRICE T ROWE ASSOCIATES INC /MD/$7M
- BlackRock, Inc.$6M
- CITADEL ADVISORS LLC$6M
- UBS Group AG$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 |
|---|---|---|---|---|
| FMR LLC added | 22,550,997 | $68M | 16.5% | 2026-Q1 |
| ARK Investment Management LLC added | 13,726,169 | $41M | 10.0% | 2026-Q1 |
| BlackRock, Inc. trimmed | 11,255,194 | $34M | 8.2% | 2026-Q1 |
| Redmile Group, LLC | 8,253,316 | $25M | 6.0% | 2026-Q1 |
| STATE STREET CORP added | 7,324,858 | $22M | 5.4% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 5,886,640 | $18M | 4.3% | 2026-Q1 |
| ADVANCED MICRO DEVICES INC | 5,714,285 | $17M | 4.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 3,343,068 | $10M | 2.4% | 2026-Q1 |
| Woodline Partners LP added | 3,300,169 | $10M | 2.4% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 3,180,141 | $10M | 2.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 2,898,766 | $9M | 2.1% | 2026-Q1 |
| Gem Investment Advisors, LLC | 2,170,863 | $7M | 1.6% | 2026-Q1 |
| BAKER BROS. ADVISORS LP | 2,134,803 | $6M | 1.6% | 2026-Q1 |
| Parkman Healthcare Partners LLC added | 1,864,806 | $6M | 1.4% | 2026-Q1 |
| Siren, L.L.C. new | 1,800,000 | $5M | 1.3% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 1,719,992 | $5M | 1.3% | 2026-Q1 |
| UBS Group AG trimmed | 1,599,809 | $5M | 1.2% | 2026-Q1 |
| Amova Asset Management Americas, Inc. trimmed | 1,346,774 | $4M | 1.0% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 1,346,774 | $4M | 1.0% | 2026-Q1 |
| MARSHALL WACE, LLP added | 1,213,089 | $4M | 0.9% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 1,197,369 | $4M | 0.9% | 2026-Q1 |
| FRED ALGER MANAGEMENT, LLC trimmed | 1,165,144 | $3M | 0.9% | 2026-Q1 |
| GROUP ONE TRADING LLC added | 1,131,988 | $3M | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 1,084,264 | $3M | 0.8% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 1,045,198 | $3M | 0.8% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,023,408 | $3M | 0.7% | 2026-Q1 |
| Casdin Capital, LLC | 973,260 | $3M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 951,446 | $3M | 0.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 801,063 | $2M | 0.6% | 2026-Q1 |
| ROYCE & ASSOCIATES LP | 735,353 | $2M | 0.5% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 670,789 | $2M | 0.5% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 649,817 | $2M | 0.5% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 647,878 | $2M | 0.5% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 600,445 | $2M | 0.4% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 591,712 | $2M | 0.4% | 2026-Q1 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd added | 541,182 | $2M | 0.4% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC trimmed | 530,130 | $2M | 0.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 487,193 | $1M | 0.4% | 2026-Q1 |
| MORGAN STANLEY trimmed | 486,625 | $1M | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 404,423 | $1M | 0.3% | 2026-Q1 |
| Squarepoint Ops LLC added | 391,290 | $1M | 0.3% | 2026-Q1 |
| XTX Topco Ltd added | 383,453 | $1M | 0.3% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 366,808 | $1M | 0.3% | 2026-Q1 |
| Nuveen, LLC added | 342,689 | $1M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 337,844 | $1M | 0.2% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 332,263 | $997K | 0.2% | 2026-Q1 |
| Rafferty Asset Management, LLC added | 240,958 | $723K | 0.2% | 2026-Q1 |
| PLATINUM INVESTMENT MANAGEMENT LTD | 237,764 | $713K | 0.2% | 2026-Q1 |
| Vestal Point Capital, LP new | 232,219 | $697K | 0.2% | 2026-Q1 |
| SIMPLEX TRADING, LLC added | 227,044 | $681K | 0.2% | 2026-Q1 |
| PIER 88 INVESTMENT PARTNERS LLC added | 206,100 | $618K | 0.2% | 2026-Q1 |
| Wilmington Savings Fund Society, FSB | 189,522 | $569K | 0.1% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 185,869 | $558K | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. | 157,990 | $551K | 0.1% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 175,085 | $525K | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 160,608 | $482K | 0.1% | 2026-Q1 |
| Independent Advisor Alliance trimmed | 153,855 | $462K | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 166,590 | $460K | 0.1% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 150,999 | $453K | 0.1% | 2026-Q1 |
| Institute for Wealth Management, LLC. | 145,792 | $437K | 0.1% | 2026-Q1 |
| CERTUITY, LLC new | 140,697 | $422K | 0.1% | 2026-Q1 |
| Aerodigm Wealth, LLC added | 131,962 | $396K | 0.1% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 127,932 | $384K | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 117,563 | $353K | 0.1% | 2026-Q1 |
| Invesco Ltd. added | 110,120 | $330K | 0.1% | 2026-Q1 |
| PROFUND ADVISORS LLC added | 107,468 | $322K | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 105,158 | $315K | 0.1% | 2026-Q1 |
| IEQ CAPITAL, LLC new | 99,022 | $297K | 0.1% | 2026-Q1 |
| Creative Planning added | 97,284 | $292K | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 83,364 | $250K | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 82,523 | $248K | 0.1% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 82,259 | $243K | 0.1% | 2026-Q1 |
| KING LUTHER CAPITAL MANAGEMENT CORP | 77,520 | $233K | 0.1% | 2026-Q1 |
| HENGEHOLD CAPITAL MANAGEMENT LLC | 73,716 | $221K | 0.1% | 2026-Q1 |
| MetLife Investment Management, LLC added | 66,490 | $199K | 0.0% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 64,508 | $196K | 0.0% | 2026-Q1 |
| SBI Securities Co., Ltd. added | 64,646 | $194K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 61,259 | $184K | 0.0% | 2026-Q1 |
| Man Group plc added | 59,761 | $179K | 0.0% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 57,284 | $172K | 0.0% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 57,055 | $171K | 0.0% | 2026-Q1 |
| GRIFFIN ASSET MANAGEMENT, INC. | 56,760 | $170K | 0.0% | 2026-Q1 |
| Centiva Capital, LP added | 50,000 | $150K | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 47,212 | $142K | 0.0% | 2026-Q1 |
| CAPTRUST FINANCIAL ADVISORS added | 43,112 | $129K | 0.0% | 2026-Q1 |
| China Universal Asset Management Co., Ltd. added | 42,685 | $128K | 0.0% | 2026-Q1 |
| MH & ASSOCIATES SECURITIES MANAGEMENT CORP /ADV added | 40,337 | $121K | 0.0% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 6,914,039 | $24M | 5.9% | 2025-Q4 stale |
| HEIGHTS CAPITAL MANAGEMENT, INC trimmed | 1,065,640 | $4M | 0.9% | 2025-Q4 stale |
| GREAT POINT PARTNERS LLC new | 796,438 | $2M | 0.6% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP added | 314,300 | $1M | 0.3% | 2025-Q4 stale |
| HRT FINANCIAL LP added | 294,209 | $738K | 0.2% | 2025-Q1 stale |
| Cubist Systematic Strategies, LLC added | 288,460 | $724K | 0.2% | 2025-Q1 stale |
| ALLEN OPERATIONS LLC | 236,129 | $718K | 0.2% | 2025-Q3 stale |
| ExodusPoint Capital Management, LP new | 79,763 | $242K | 0.1% | 2025-Q3 stale |
| Brevan Howard Capital Management LP trimmed | 67,638 | $206K | 0.1% | 2025-Q3 stale |
| Graham Capital Management, L.P. new | 76,276 | $196K | 0.0% | 2025-Q2 stale |
| Walleye Capital LLC added | 76,226 | $191K | 0.0% | 2025-Q1 stale |
| Atom Investors LP new | 48,859 | $149K | 0.0% | 2025-Q3 stale |
| Point72 Asset Management, L.P. added | 48,140 | $121K | 0.0% | 2025-Q1 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.