Who owns AQST (AQST)
Which tracked institutional funds hold AQST, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AQST 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
24 tracked funds added or opened AQST while 52 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
AQST’s largest tracked holder by dollar value, Bratton Capital Management, L.P., sizes it at 100.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 100.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in AQST 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 181 tracked filers holding AQST, 106 increased or opened the position and 94 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 AQST 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 12
- VANGUARD CAPITAL MANAGEMENT LLC$18M
- Arete Wealth Advisors, LLC$14M
- Propel Bio Management, LLC$3M
- VANGUARD PORTFOLIO MANAGEMENT LLC$3M
- VANGUARD FIDUCIARY TRUST CO$3M
- Point72 Asset Management, L.P.$1M
Full exits 16
- VANGUARD GROUP INC$33M
- EcoR1 Capital, LLC$17M
- HRT FINANCIAL LP$6M
- Aberdeen Group plc$5M
- PERCEPTIVE ADVISORS LLC$5M
- Trexquant Investment LP$3M
Largest adds
- BALYASNY ASSET MANAGEMENT L.P.$6M
- TWO SIGMA INVESTMENTS, LP$2M
- Blue Owl Capital Holdings LP$2M
- BANK OF AMERICA CORP /DE/$2M
- Sio Capital Management, LLC$2M
- EverSource Wealth Advisors, LLC$1M
Largest trims
- Bratton Capital Management, L.P.$23M
- BlackRock, Inc.$19M
- MILLENNIUM MANAGEMENT LLC$10M
- RTW INVESTMENTS, LP$10M
- D. E. Shaw & Co., Inc.$6M
- SAMSARA BIOCAPITAL, LLC$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 |
|---|---|---|---|---|
| Bratton Capital Management, L.P. | 9,810,958 | $41M | 10.1% | 2026-Q1 |
| BlackRock, Inc. trimmed | 7,509,071 | $31M | 7.7% | 2026-Q1 |
| RTW INVESTMENTS, LP added | 7,426,471 | $31M | 7.6% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 4,443,698 | $18M | 4.6% | 2026-Q1 |
| Arete Wealth Advisors, LLC new | 121,485 | $14M | 3.5% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 2,940,339 | $12M | 3.0% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 2,900,570 | $12M | 3.0% | 2026-Q1 |
| STATE STREET CORP added | 2,546,191 | $11M | 2.6% | 2026-Q1 |
| SAMSARA BIOCAPITAL, LLC | 2,500,000 | $10M | 2.6% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,408,191 | $10M | 2.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 2,405,050 | $10M | 2.5% | 2026-Q1 |
| Sio Capital Management, LLC added | 1,922,887 | $8M | 2.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,591,792 | $7M | 1.6% | 2026-Q1 |
| Blue Owl Capital Holdings LP added | 1,347,932 | $6M | 1.4% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,139,404 | $5M | 1.2% | 2026-Q1 |
| Janney Montgomery Scott LLC trimmed | 1,089,110 | $5M | 1.1% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 1,082,680 | $4M | 1.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 1,034,644 | $4M | 1.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 1,030,050 | $4M | 1.1% | 2026-Q1 |
| WASATCH ADVISORS LP added | 878,316 | $4M | 0.9% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 809,007 | $3M | 0.8% | 2026-Q1 |
| BARCLAYS PLC added | 799,163 | $3M | 0.8% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 732,504 | $3M | 0.8% | 2026-Q1 |
| Propel Bio Management, LLC new | 710,988 | $3M | 0.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 691,750 | $3M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 637,512 | $3M | 0.7% | 2026-Q1 |
| Walleye Capital LLC added | 584,977 | $2M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 565,203 | $2M | 0.6% | 2026-Q1 |
| Everstar Asset Management, LLC added | 553,181 | $2M | 0.6% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 466,767 | $2M | 0.5% | 2026-Q1 |
| UBS Group AG added | 464,207 | $2M | 0.5% | 2026-Q1 |
| Bracebridge Capital, LLC | 459,216 | $2M | 0.5% | 2026-Q1 |
| DAFNA Capital Management LLC trimmed | 368,415 | $2M | 0.4% | 2026-Q1 |
| STIFEL FINANCIAL CORP trimmed | 359,903 | $1M | 0.4% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 337,635 | $1M | 0.3% | 2026-Q1 |
| Diametric Capital, LP added | 335,443 | $1M | 0.3% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 290,060 | $1M | 0.3% | 2026-Q1 |
| EverSource Wealth Advisors, LLC added | 22,781 | $1M | 0.3% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 283,734 | $1M | 0.3% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 279,287 | $1M | 0.3% | 2026-Q1 |
| AWM Investment Company, Inc. new | 270,400 | $1M | 0.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 267,419 | $1M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 255,184 | $1M | 0.3% | 2026-Q1 |
| Nuveen, LLC trimmed | 253,465 | $1M | 0.3% | 2026-Q1 |
| Rosalind Advisors, Inc. new | 250,000 | $1M | 0.3% | 2026-Q1 |
| Squarepoint Ops LLC added | 249,482 | $1M | 0.3% | 2026-Q1 |
| Latash Investments, LLC | 243,134 | $1M | 0.3% | 2026-Q1 |
| Simplify Asset Management Inc. new | 234,279 | $972K | 0.2% | 2026-Q1 |
| Hudson Bay Capital Management LP new | 234,000 | $971K | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 226,163 | $939K | 0.2% | 2026-Q1 |
| Creative Planning added | 183,188 | $760K | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. | 91,990 | $594K | 0.1% | 2026-Q1 |
| Aquatic Capital Management LLC added | 141,350 | $587K | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 136,539 | $567K | 0.1% | 2026-Q1 |
| Bleakley Financial Group, LLC new | 135,767 | $563K | 0.1% | 2026-Q1 |
| HighTower Advisors, LLC added | 104,652 | $434K | 0.1% | 2026-Q1 |
| Quantbot Technologies LP added | 103,446 | $429K | 0.1% | 2026-Q1 |
| Financial Engines Advisors L.L.C. | 97,483 | $405K | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 87,448 | $363K | 0.1% | 2026-Q1 |
| LPL Financial LLC trimmed | 83,213 | $345K | 0.1% | 2026-Q1 |
| Invesco Ltd. added | 82,759 | $343K | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 78,341 | $325K | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 72,516 | $301K | 0.1% | 2026-Q1 |
| CORSAIR CAPITAL MANAGEMENT, L.P. added | 70,000 | $290K | 0.1% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ trimmed | 63,289 | $263K | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 64,438 | $260K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 5,131,139 | $33M | 8.2% | 2025-Q4 stale |
| EcoR1 Capital, LLC | 2,625,000 | $17M | 4.2% | 2025-Q4 stale |
| HRT FINANCIAL LP added | 994,966 | $6M | 1.6% | 2025-Q4 stale |
| Aberdeen Group plc added | 809,203 | $5M | 1.3% | 2025-Q4 stale |
| PERCEPTIVE ADVISORS LLC trimmed | 747,193 | $5M | 1.2% | 2025-Q4 stale |
| Trexquant Investment LP added | 523,334 | $3M | 0.8% | 2025-Q4 stale |
| Nantahala Capital Management, LLC new | 600,000 | $3M | 0.8% | 2025-Q3 stale |
| RENAISSANCE TECHNOLOGIES LLC added | 414,400 | $3M | 0.7% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP trimmed | 332,400 | $2M | 0.5% | 2025-Q4 stale |
| HARVEY CAPITAL MANAGEMENT INC added | 343,755 | $2M | 0.5% | 2025-Q3 stale |
| Jump Financial, LLC added | 246,840 | $2M | 0.4% | 2025-Q4 stale |
| JANUS HENDERSON GROUP PLC new | 226,702 | $1M | 0.4% | 2025-Q4 stale |
| Woodline Partners LP | 407,661 | $1M | 0.3% | 2025-Q2 stale |
| GSA CAPITAL PARTNERS LLP added | 241,359 | $1M | 0.3% | 2025-Q3 stale |
| Swiss National Bank new | 202,700 | $1M | 0.3% | 2025-Q4 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC new | 194,105 | $1M | 0.3% | 2025-Q4 stale |
| Verition Fund Management LLC trimmed | 160,197 | $1M | 0.3% | 2025-Q4 stale |
| Informed Momentum Co LLC added | 155,053 | $1M | 0.2% | 2025-Q4 stale |
| Numerai GP LLC new | 122,125 | $789K | 0.2% | 2025-Q4 stale |
| Penn Capital Management Company, LLC added | 115,936 | $749K | 0.2% | 2025-Q4 stale |
| Virtu Financial LLC added | 118,329 | $661K | 0.2% | 2025-Q3 stale |
| Cahill Wealth Management, LLC added | 218,381 | $633K | 0.2% | 2025-Q1 stale |
| Stonepine Capital Management, LLC trimmed | 100,600 | $562K | 0.1% | 2025-Q3 stale |
| Pale Fire Capital SE trimmed | 93,132 | $521K | 0.1% | 2025-Q3 stale |
| Stratos Wealth Partners, LTD. added | 73,652 | $476K | 0.1% | 2025-Q4 stale |
| LOS ANGELES CAPITAL MANAGEMENT LLC new | 68,200 | $454K | 0.1% | 2025-Q4 stale |
| Brevan Howard Capital Management LP added | 67,738 | $438K | 0.1% | 2025-Q4 stale |
| Zurcher Kantonalbank (Zurich Cantonalbank) new | 65,008 | $420K | 0.1% | 2025-Q4 stale |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 64,900 | $419K | 0.1% | 2025-Q4 stale |
| Longaeva Partners L.P. new | 71,015 | $397K | 0.1% | 2025-Q3 stale |
| OCCUDO QUANTITATIVE STRATEGIES LP added | 56,545 | $365K | 0.1% | 2025-Q4 stale |
| SIMPLEX TRADING, LLC trimmed | 51,177 | $286K | 0.1% | 2025-Q3 stale |
| Dauntless Investment Group, LLC new | 91,540 | $265K | 0.1% | 2025-Q1 stale |
| PharVision Advisers, LLC new | 46,450 | $260K | 0.1% | 2025-Q3 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.