Who owns Autolus Therapeutics plc (AUTL)
Which tracked institutional funds hold AUTL, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AUTL 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
The tracked-fund tape on AUTL is one-sided between 2025-Q4 and 2026-Q1: 2 added or opened and 25 trimmed or exited — on balance reducing.
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
AUTL’s largest tracked holder by dollar value, WELLINGTON MANAGEMENT GROUP LLP, 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 AUTL 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 84 tracked filers holding AUTL, 32 increased or opened the position and 43 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 AUTL 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 2
- BALYASNY ASSET MANAGEMENT L.P.$1M
- Marex Group plc$749K
Full exits 1
- Atle Fund Management AB$2M
Largest trims
- MAK CAPITAL ONE LLC$13M
- ARMISTICE CAPITAL, LLC$13M
- Blackstone Inc.$12M
- Syncona Portfolio Ltd$10M
- SCHRODER INVESTMENT MANAGEMENT GROUP$7M
- Tetragon Partners GP Ltd$6M
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 |
|---|---|---|---|---|
| MAK CAPITAL ONE LLC added | 33,621,487 | $46M | 14.4% | 2026-Q1 |
| Blackstone Inc. | 20,485,611 | $28M | 8.8% | 2026-Q1 |
| Syncona Portfolio Ltd | 16,640,720 | $23M | 7.1% | 2026-Q1 |
| ARMISTICE CAPITAL, LLC trimmed | 15,800,000 | $22M | 6.8% | 2026-Q1 |
| Tetragon Partners GP Ltd | 9,500,000 | $13M | 4.1% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 9,489,345 | $12M | 3.7% | 2026-Q1 |
| Frazier Life Sciences Management, L.P. trimmed | 4,447,910 | $6M | 1.9% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 3,361,156 | $5M | 1.4% | 2026-Q1 |
| Laurion Capital Management LP | 3,316,626 | $5M | 1.4% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 2,299,499 | $3M | 1.0% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 1,844,671 | $3M | 0.8% | 2026-Q1 |
| BlackRock, Inc. trimmed | 1,480,732 | $2M | 0.6% | 2026-Q1 |
| UBS Group AG added | 1,305,779 | $2M | 0.6% | 2026-Q1 |
| Cetera Investment Advisers added | 1,129,074 | $2M | 0.5% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 971,691 | $1M | 0.4% | 2026-Q1 |
| MORGAN STANLEY trimmed | 941,823 | $1M | 0.4% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 935,403 | $1M | 0.4% | 2026-Q1 |
| Alphabet Inc. | 698,262 | $964K | 0.3% | 2026-Q1 |
| Marex Group plc added | 542,857 | $749K | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 459,404 | $634K | 0.2% | 2026-Q1 |
| Hennion & Walsh Asset Management, Inc. trimmed | 440,206 | $607K | 0.2% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 426,983 | $589K | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 399,143 | $551K | 0.2% | 2026-Q1 |
| Privium Fund Management B.V. added | 363,430 | $502K | 0.2% | 2026-Q1 |
| EDENTREE ASSET MANAGEMENT Ltd | 300,000 | $414K | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 245,785 | $339K | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 207,856 | $287K | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 204,728 | $283K | 0.1% | 2026-Q1 |
| Erste Asset Management GmbH | 195,000 | $248K | 0.1% | 2026-Q1 |
| DAFNA Capital Management LLC | 179,316 | $247K | 0.1% | 2026-Q1 |
| Diametric Capital, LP trimmed | 178,731 | $247K | 0.1% | 2026-Q1 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P added | 150,000 | $207K | 0.1% | 2026-Q1 |
| Aubrey Capital Management Ltd trimmed | 130,000 | $180K | 0.1% | 2026-Q1 |
| Clearstead Advisors, LLC | 121,107 | $167K | 0.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 116,413 | $161K | 0.0% | 2026-Q1 |
| Aquatic Capital Management LLC added | 114,398 | $158K | 0.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC | 110,578 | $153K | 0.0% | 2026-Q1 |
| Leonteq Securities AG | 100,000 | $138K | 0.0% | 2026-Q1 |
| STATE STREET CORP added | 83,540 | $115K | 0.0% | 2026-Q1 |
| HighPoint Advisor Group LLC trimmed | 67,000 | $92K | 0.0% | 2026-Q1 |
| SG Americas Securities, LLC trimmed | 66,107 | $91K | 0.0% | 2026-Q1 |
| SmartHarvest Portfolios, LLC added | 59,185 | $82K | 0.0% | 2026-Q1 |
| XTX Topco Ltd trimmed | 56,405 | $78K | 0.0% | 2026-Q1 |
| Quadrature Capital Ltd added | 54,733 | $76K | 0.0% | 2026-Q1 |
| Invesco Ltd. added | 53,153 | $73K | 0.0% | 2026-Q1 |
| Caitong International Asset Management Co., Ltd added | 51,587 | $71K | 0.0% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL trimmed | 46,213 | $64K | 0.0% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 45,749 | $63K | 0.0% | 2026-Q1 |
| TWO SIGMA SECURITIES, LLC trimmed | 43,462 | $60K | 0.0% | 2026-Q1 |
| R Squared Ltd added | 39,575 | $55K | 0.0% | 2026-Q1 |
| LPL Financial LLC trimmed | 37,625 | $52K | 0.0% | 2026-Q1 |
| China Universal Asset Management Co., Ltd. added | 35,597 | $49K | 0.0% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 34,951 | $48K | 0.0% | 2026-Q1 |
| Rathbones Group PLC trimmed | 28,050 | $39K | 0.0% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 27,597 | $38K | 0.0% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 27,200 | $38K | 0.0% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 27,147,035 | $62M | 19.2% | 2025-Q2 stale |
| FMR LLC trimmed | 7,105,585 | $16M | 5.0% | 2025-Q2 stale |
| Avoro Capital Advisors LLC | 9,910,642 | $15M | 4.8% | 2025-Q1 stale |
| AXA S.A. | 3,126,167 | $7M | 2.2% | 2025-Q2 stale |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 2,694,202 | $6M | 1.9% | 2025-Q2 stale |
| AXA Investment Managers S.A. new | 3,361,156 | $5M | 1.7% | 2025-Q3 stale |
| Candriam S.C.A. | 3,191,401 | $5M | 1.5% | 2025-Q1 stale |
| GREAT POINT PARTNERS LLC trimmed | 2,728,910 | $4M | 1.3% | 2025-Q1 stale |
| Deep Track Capital, LP trimmed | 2,568,613 | $4M | 1.3% | 2025-Q3 stale |
| Affinity Asset Advisors, LLC trimmed | 1,750,000 | $3M | 0.9% | 2025-Q3 stale |
| Atle Fund Management AB | 1,169,634 | $2M | 0.7% | 2025-Q4 stale |
| Eversept Partners, LP added | 610,231 | $1M | 0.4% | 2025-Q2 stale |
| Perpetual Ltd trimmed | 481,081 | $784K | 0.2% | 2025-Q3 stale |
| Knott David M Jr trimmed | 270,000 | $616K | 0.2% | 2025-Q2 stale |
| Legal & General Group Plc added | 299,836 | $463K | 0.1% | 2025-Q1 stale |
| HRT FINANCIAL LP added | 210,172 | $342K | 0.1% | 2025-Q3 stale |
| BIT Capital GmbH trimmed | 199,359 | $309K | 0.1% | 2025-Q1 stale |
| Arizona PSPRS Trust new | 150,000 | $298K | 0.1% | 2025-Q4 stale |
| TWO SIGMA INVESTMENTS, LP added | 172,143 | $281K | 0.1% | 2025-Q3 stale |
| Cubist Systematic Strategies, LLC added | 159,408 | $260K | 0.1% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP trimmed | 164,700 | $255K | 0.1% | 2025-Q1 stale |
| Graham Capital Management, L.P. new | 147,877 | $241K | 0.1% | 2025-Q3 stale |
| Vident Advisory, LLC new | 155,504 | $241K | 0.1% | 2025-Q1 stale |
| GSA CAPITAL PARTNERS LLP trimmed | 119,546 | $238K | 0.1% | 2025-Q4 stale |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO new | 132,688 | $216K | 0.1% | 2025-Q3 stale |
| Vontobel Holding Ltd. trimmed | 138,783 | $215K | 0.1% | 2025-Q1 stale |
| ALPS ADVISORS INC trimmed | 124,606 | $203K | 0.1% | 2025-Q3 stale |
| TEMA ETFS LLC trimmed | 115,823 | $189K | 0.1% | 2025-Q3 stale |
| NEOS Investment Management LLC trimmed | 115,823 | $189K | 0.1% | 2025-Q3 stale |
| OpenArc Corporate Advisory, LLC new | 84,850 | $169K | 0.1% | 2025-Q4 stale |
| Squarepoint Ops LLC added | 91,957 | $150K | 0.0% | 2025-Q3 stale |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 89,949 | $139K | 0.0% | 2025-Q1 stale |
| Handelsbanken Fonder AB | 73,300 | $114K | 0.0% | 2025-Q1 stale |
| EXCHANGE TRADED CONCEPTS, LLC added | 69,993 | $108K | 0.0% | 2025-Q1 stale |
| Aigen Investment Management, LP new | 65,617 | $107K | 0.0% | 2025-Q3 stale |
| Avanza Fonder AB | 53,522 | $107K | 0.0% | 2025-Q4 stale |
| Scientech Research LLC new | 48,572 | $97K | 0.0% | 2025-Q4 stale |
| Virtus Investment Advisers, LLC added | 52,924 | $86K | 0.0% | 2025-Q3 stale |
| Qube Research & Technologies Ltd trimmed | 51,188 | $79K | 0.0% | 2025-Q1 stale |
| Federation des caisses Desjardins du Quebec new | 31,328 | $62K | 0.0% | 2025-Q4 stale |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS trimmed | 30,095 | $60K | 0.0% | 2025-Q4 stale |
| HERBST GROUP, LLC | 25,000 | $57K | 0.0% | 2025-Q2 stale |
| TRUST CO OF TOLEDO NA /OH/ | 36,265 | $56K | 0.0% | 2025-Q1 stale |
| FOREFRONT WEALTH MANAGEMENT INC. | 26,870 | $53K | 0.0% | 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.