Who owns AZNN
Which tracked institutional funds hold AZNN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AZNN 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
The tracked-fund tape on AZNN is one-sided between 2025-Q3 and 2025-Q4: 513 added or opened and 137 trimmed or exited — on balance accumulating.
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
AZNN’s largest tracked holder by dollar value, PRICE T ROWE ASSOCIATES INC /MD/, sizes it at 0.4% of its own reported 13F book, while the median holder sizes it at 0.2% of theirs — a 0.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in AZNN 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, we do not read how tracked institutions changed their AZNN positions: many holders could not be matched across the two filings, most often because the security’s identifier changed and our mapping is incomplete, or because funds are still filing for the newer quarter. 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 AZNN between the 2025-Q3 and 2025-Q4 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 78
- HARRIS ASSOCIATES L P$343M
- TWO SIGMA ADVISERS, LP$117M
- BNP PARIBAS ASSET MANAGEMENT Holding S.A.$40M
- Main Street Research LLC$34M
- OLD MISSION CAPITAL LLC$22M
- BOONE CAPITAL MANAGEMENT LLC$20M
Full exits 84
- Qube Research & Technologies Ltd$59M
- VAUGHAN DAVID INVESTMENTS LLC/IL$39M
- AXA Investment Managers S.A.$36M
- Bridgewater Associates, LP$36M
- MACQUARIE GROUP LTD$27M
- Beck Bode, LLC$17M
Largest adds
- PRICE T ROWE ASSOCIATES INC /MD/$703M
- AMERIPRISE FINANCIAL INC$527M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$445M
- Fisher Asset Management, LLC$362M
- FMR LLC$345M
- FRANKLIN RESOURCES INC$341M
Largest trims
- Capital International Investors$572M
- WELLINGTON MANAGEMENT GROUP LLP$379M
- CITADEL ADVISORS LLC$198M
- BANK OF AMERICA CORP /DE/$81M
- Holocene Advisors, LP$72M
- Schonfeld Strategic Advisors LLC$59M
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 |
|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 48,643,827 | $4.5B | 11.3% | 2025-Q4 |
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 36,915,261 | $3.4B | 8.5% | 2025-Q4 |
| BANK OF AMERICA CORP /DE/ trimmed | 26,356,351 | $2.4B | 6.1% | 2025-Q4 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 22,828,246 | $2.1B | 5.3% | 2025-Q4 |
| FMR LLC added | 21,848,855 | $2.0B | 5.1% | 2025-Q4 |
| Fisher Asset Management, LLC added | 21,601,433 | $2.0B | 5.0% | 2025-Q4 |
| FRANKLIN RESOURCES INC added | 20,157,744 | $1.9B | 4.7% | 2025-Q4 |
| Capital International Investors trimmed | 14,521,078 | $1.3B | 3.4% | 2025-Q4 |
| GOLDMAN SACHS GROUP INC added | 14,389,158 | $1.3B | 3.3% | 2025-Q4 |
| Sanders Capital, LLC added | 14,139,408 | $1.3B | 3.3% | 2025-Q4 |
| MORGAN STANLEY added | 13,878,726 | $1.3B | 3.2% | 2025-Q4 |
| AMERIPRISE FINANCIAL INC added | 10,495,599 | $966M | 2.4% | 2025-Q4 |
| CIBC Private Wealth Group LLC trimmed | 8,081,817 | $743M | 1.9% | 2025-Q4 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 6,621,662 | $609M | 1.5% | 2025-Q4 |
| CITIGROUP INC added | 6,154,760 | $566M | 1.4% | 2025-Q4 |
| BlackRock, Inc. added | 6,113,037 | $562M | 1.4% | 2025-Q4 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 5,547,597 | $510M | 1.3% | 2025-Q4 |
| NEUBERGER BERMAN GROUP LLC trimmed | 4,959,858 | $456M | 1.1% | 2025-Q4 |
| NORTHERN TRUST CORP added | 4,756,686 | $437M | 1.1% | 2025-Q4 |
| RAYMOND JAMES FINANCIAL INC added | 4,418,771 | $407M | 1.0% | 2025-Q4 |
| Invesco Ltd. added | 4,406,716 | $405M | 1.0% | 2025-Q4 |
| Holocene Advisors, LP trimmed | 4,332,123 | $398M | 1.0% | 2025-Q4 |
| Boston Partners trimmed | 4,229,792 | $389M | 1.0% | 2025-Q4 |
| Clearbridge Investments, LLC trimmed | 4,204,564 | $387M | 1.0% | 2025-Q4 |
| ENVESTNET ASSET MANAGEMENT INC added | 4,051,646 | $372M | 0.9% | 2025-Q4 |
| Swedbank AB trimmed | 3,989,339 | $367M | 0.9% | 2025-Q4 |
| JPMORGAN CHASE & CO trimmed | 3,746,985 | $344M | 0.9% | 2025-Q4 |
| HARRIS ASSOCIATES L P new | 3,729,731 | $343M | 0.9% | 2025-Q4 |
| AMERICAN CENTURY COMPANIES INC added | 3,442,805 | $316M | 0.8% | 2025-Q4 |
| ROYAL BANK OF CANADA trimmed | 3,365,329 | $309M | 0.8% | 2025-Q4 |
| JENNISON ASSOCIATES LLC trimmed | 3,362,846 | $309M | 0.8% | 2025-Q4 |
| BANK OF MONTREAL /CAN/ trimmed | 3,277,737 | $301M | 0.8% | 2025-Q4 |
| WELLS FARGO & COMPANY/MN trimmed | 3,102,852 | $285M | 0.7% | 2025-Q4 |
| UBS Group AG added | 2,878,796 | $265M | 0.7% | 2025-Q4 |
| BARCLAYS PLC added | 2,745,603 | $252M | 0.6% | 2025-Q4 |
| WCM INVESTMENT MANAGEMENT, LLC trimmed | 2,662,619 | $246M | 0.6% | 2025-Q4 |
| VOYA INVESTMENT MANAGEMENT LLC added | 2,672,165 | $246M | 0.6% | 2025-Q4 |
| MILLENNIUM MANAGEMENT LLC added | 2,396,943 | $220M | 0.6% | 2025-Q4 |
| NATIONAL BANK OF CANADA /FI/ added | 2,236,063 | $206M | 0.5% | 2025-Q4 |
| TWO SIGMA INVESTMENTS, LP added | 2,180,476 | $200M | 0.5% | 2025-Q4 |
| ACADIAN ASSET MANAGEMENT LLC added | 2,178,578 | $200M | 0.5% | 2025-Q4 |
| NATIXIS ADVISORS, LLC trimmed | 2,053,511 | $189M | 0.5% | 2025-Q4 |
| Point72 Asset Management, L.P. added | 1,852,741 | $170M | 0.4% | 2025-Q4 |
| Bank Julius Baer & Co. Ltd, Zurich added | 1,806,877 | $166M | 0.4% | 2025-Q4 |
| Alyeska Investment Group, L.P. added | 1,726,795 | $159M | 0.4% | 2025-Q4 |
| SATURNA CAPITAL CORP added | 1,635,207 | $150M | 0.4% | 2025-Q4 |
| Sofinnova Investments, Inc. added | 1,632,334 | $150M | 0.4% | 2025-Q4 |
| Allspring Global Investments Holdings, LLC added | 1,628,771 | $149M | 0.4% | 2025-Q4 |
| MANNING & NAPIER ADVISORS LLC trimmed | 1,541,423 | $143M | 0.4% | 2025-Q4 |
| CRAWFORD INVESTMENT COUNSEL INC trimmed | 1,538,963 | $141M | 0.4% | 2025-Q4 |
| TRUIST FINANCIAL CORP added | 1,538,680 | $141M | 0.4% | 2025-Q4 |
| MACKENZIE FINANCIAL CORP added | 1,484,312 | $137M | 0.3% | 2025-Q4 |
| Connor, Clark & Lunn Investment Management Ltd. added | 1,421,698 | $131M | 0.3% | 2025-Q4 |
| LMR Partners LLP added | 1,416,898 | $130M | 0.3% | 2025-Q4 |
| ALLIANCEBERNSTEIN L.P. trimmed | 1,347,232 | $124M | 0.3% | 2025-Q4 |
| LAZARD ASSET MANAGEMENT LLC added | 1,337,216 | $123M | 0.3% | 2025-Q4 |
| FRED ALGER MANAGEMENT, LLC added | 1,318,719 | $121M | 0.3% | 2025-Q4 |
| Clark Capital Management Group, Inc. trimmed | 1,293,169 | $119M | 0.3% | 2025-Q4 |
| STIFEL FINANCIAL CORP added | 1,288,855 | $118M | 0.3% | 2025-Q4 |
| TWO SIGMA ADVISERS, LP added | 1,272,600 | $117M | 0.3% | 2025-Q4 |
| PARNASSUS INVESTMENTS, LLC trimmed | 1,237,719 | $114M | 0.3% | 2025-Q4 |
| JANUS HENDERSON GROUP PLC trimmed | 1,207,156 | $111M | 0.3% | 2025-Q4 |
| LPL Financial LLC added | 1,152,872 | $106M | 0.3% | 2025-Q4 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 1,125,252 | $103M | 0.3% | 2025-Q4 |
| TD Asset Management Inc added | 1,112,841 | $102M | 0.3% | 2025-Q4 |
| NICHOLAS COMPANY, INC. trimmed | 1,083,854 | $100M | 0.3% | 2025-Q4 |
| Balyasny Asset Management L.P. added | 1,078,380 | $99M | 0.2% | 2025-Q4 |
| Bank of New York Mellon Corp added | 1,032,000 | $95M | 0.2% | 2025-Q4 |
| CAUSEWAY CAPITAL MANAGEMENT LLC trimmed | 1,010,898 | $93M | 0.2% | 2025-Q4 |
| Mediolanum International Funds Ltd added | 487,420 | $92M | 0.2% | 2026-Q2 (2 quarters ahead of as-of) |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 984,405 | $90M | 0.2% | 2025-Q4 |
| Erste Asset Management GmbH trimmed | 972,748 | $90M | 0.2% | 2025-Q4 |
| SEI INVESTMENTS CO added | 966,235 | $89M | 0.2% | 2025-Q4 |
| HighTower Advisors, LLC added | 965,247 | $89M | 0.2% | 2025-Q4 |
| ProShare Advisors LLC added | 932,624 | $86M | 0.2% | 2025-Q4 |
| Capital World Investors trimmed | 914,079 | $84M | 0.2% | 2025-Q4 |
| FIRST TRUST ADVISORS LP trimmed | 871,656 | $80M | 0.2% | 2025-Q4 |
| STATE STREET CORP trimmed | 842,157 | $77M | 0.2% | 2025-Q4 |
| Aberdeen Group plc added | 841,574 | $77M | 0.2% | 2025-Q4 |
| Fayez Sarofim & Co trimmed | 179,593 | $34M | 0.1% | 2026-Q2 (2 quarters ahead of as-of) |
| Mengis Capital Management, Inc. added | 46,736 | $9M | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| Wahed Invest LLC added | 44,270 | $8M | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| Stanley-Laman Group, Ltd. trimmed | 23,593 | $4M | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| WESTPORT ASSET MANAGEMENT INC | 7,500 | $1M | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| RAELIPSKIE PARTNERSHIP | 7,412 | $1M | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| 1620 INVESTMENT ADVISORS, INC. added | 5,058 | $959K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| CULLINAN ASSOCIATES INC | 4,013 | $761K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| NORTH STAR ASSET MANAGEMENT INC | 2,656 | $504K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| Curbstone Financial Management Corp | 2,252 | $427K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| South Shore Capital Advisors | 1,939 | $363K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| KEYNOTE FINANCIAL SERVICES LLC | 1,134 | $215K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| Asset Planning,Inc | 500 | $95K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| Pinnacle Holdings, LLC | 400 | $76K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| Byrne Asset Management LLC | 147 | $28K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| KERR FINANCIAL PLANNING Corp | 110 | $21K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| RMG Wealth Management LLC trimmed | 87 | $14K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| Winch Advisory Services, LLC | 21 | $4K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| LAM GROUP, INC. | 1 | $190 | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| HUNTINGTON NATIONAL BANK | 1 | $93 | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| RENAISSANCE TECHNOLOGIES LLC added | 1,303,773 | $91M | 0.2% | 2025-Q2 stale (2 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.