Who owns Avalyn Pharma Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of AVLN from SEC Form 13F filings across 93 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 93 institutions disclosed 44.3M shares of Avalyn Pharma Inc. worth $1.46B — about 149.5% of shares outstanding; the largest disclosed holder is FMR LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
93
13F holders
$1.46B
value, 2026 filers
149.5%
of shares outstanding (44.3M sh)
93
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of AVLN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | FMR LLCNEW | 5.8M | $192.1M | 0.0% | 19.7% | new |
| 2 | NOVO HOLDINGS A/SNEW | 3.9M | $127.8M | 7.4% | 13.1% | new |
| 3 | SR One Capital Management, LPNEW | 3.3M | $108.9M | 10.5% | 11.2% | new |
| 4 | PERCEPTIVE ADVISORS LLCNEW | 2.7M | $88.1M | 1.3% | 9% | new |
| 5 | MONTANOVA CAPITAL, LLCNEW | 2.5M | $82.4M | 1.5% | 8.4% | new |
| 6 | NVP ASSOCIATES, LLCNEW | 2.3M | $74.7M | 22.8% | 7.7% | new |
| 7 | WELLINGTON MANAGEMENT GROUP LLPNEW | 2.2M | $72.5M | 0.0% | 7.4% | new |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/NEW | 1.7M | $57.1M | 0.0% | 5.9% | new |
| 9 | Catalio Capital Management, LPNEW | 1.7M | $55.2M | 10.4% | 5.7% | new |
| 10 | T. Rowe Price Investment Management, Inc.NEW | 1.6M | $52.8M | 0.0% | 5.4% | new |
| 11 | EVENTIDE ASSET MANAGEMENT, LLCNEW | 1.4M | $45.3M | 0.6% | 4.6% | new |
| 12 | Bellevue Group AGNEW | 1.4M | $44.4M | 0.9% | 4.6% | new |
| 13 | BlackRock, Inc.NEW | 977,264 | $32.2M | 0.0% | 3.3% | new |
| 14 | Pivotal bioVenture Partners Investment Advisor LLCNEW | 966,792 | $31.8M | 10.3% | 3.3% | new |
| 15 | CITADEL ADVISORS LLCNEW | 959,098 | $31.6M | 0.0% | 3.2% | new |
| 16 | ANDERA PARTNERSNEW | 929,824 | $30.6M | 14.8% | 3.1% | new |
| 17 | JENNISON ASSOCIATES LLCNEW | 812,749 | $26.8M | 0.0% | 2.7% | new |
| 18 | BRAIDWELL LPNEW | 801,395 | $26.4M | 1.0% | 2.7% | new |
| 19 | TPG GP A, LLCNEW | 773,069 | $25.4M | 0.5% | 2.6% | new |
| 20 | VANGUARD CAPITAL MANAGEMENT LLCNEW | 739,770 | $24.4M | 0.0% | 2.5% | new |
| 21 | DEERFIELD MANAGEMENT COMPANY, L.P.NEW | 731,000 | $24.1M | 0.3% | 2.5% | new |
| 22 | Rock Springs Capital Management LPNEW | 662,918 | $21.8M | 1.1% | 2.2% | new |
| 23 | GEODE CAPITAL MANAGEMENT, LLCNEW | 434,650 | $14.3M | 0.0% | 1.5% | new |
| 24 | Soleus Capital Management, L.P.NEW | 419,000 | $13.8M | 0.5% | 1.4% | new |
| 25 | INFINITUM ASSET MANAGEMENT, LLCNEW | 411,378 | $13.5M | 1.4% | 1.4% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.