Avalyn Pharma Inc.: which funds bought and sold

Institutions that bought and sold Avalyn Pharma shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 90 institutions that filed 13F reports for both quarters added to or opened positions in Avalyn Pharma, and 0 cut or closed them. Together they added a net 43.9M shares, — on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 22.7M shares; index fund managers were net buyers of 2.7M shares. 90 opened a new position and 0 sold out entirely.

Bought, Q2 2026 90 institutions, 90 of them new holders Sold, Q2 2026 0 institutions, 0 of them sold out

Net change, all compared +43.9M shares (—)

Net change, active managers +22.7M shares (—), 29 bought, 0 sold

Buyers versus sellers

institutions compared, 90

90 bought 0 sold

Active managers and hedge funds 29 bought · 0 sold · +22.7M

Index fund managers 8 bought · 0 sold · +2.7M

Other institutions 53 bought · 0 sold · +18.5M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
FMR LLC Active manager	+5.8M New position	5.8M	$192M
Novo Holdings A/S	+3.9M New position	3.9M	$128M
Sr One Capital Management, LP	+3.3M New position	3.3M	$109M
Perceptive Advisors LLC Hedge fund	+2.7M New position	2.7M	$88.1M
Montanova Capital, LLC Hedge fund	+2.5M New position	2.5M	$82.4M
Nvp Associates, LLC	+2.3M New position	2.3M	$74.7M
Wellington Management Group LLP Active manager	+2.2M New position	2.2M	$72.5M
Price T Rowe Associates Inc Active manager	+1.7M New position	1.7M	$57.1M
Catalio Capital Management, LP	+1.7M New position	1.7M	$55.2M
T. Rowe Price Investment Management, Inc. Active manager	+1.6M New position	1.6M	$52.8M
Eventide Asset Management, LLC	+1.4M New position	1.4M	$45.3M
Bellevue Group AG	+1.4M New position	1.4M	$44.4M
Blackrock, Inc. Index funds	+977K New position	977K	$32.2M
Pivotal Bioventure Partners Investment Advisor LLC	+967K New position	967K	$31.8M
Citadel Advisors LLC Hedge fund	+959K New position	959K	$31.6M
Andera Partners	+930K New position	930K	$30.6M
Jennison Associates LLC Active manager	+813K New position	813K	$26.8M
Braidwell LP Hedge fund	+801K New position	801K	$26.4M
Tpg Gp A, LLC	+773K New position	773K	$25.4M
Vanguard Capital Management LLC Index funds	+740K New position	740K	$24.4M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
FMR LLC Active manager	+5.8M New position	5.8M	$192M
Perceptive Advisors LLC Hedge fund	+2.7M New position	2.7M	$88.1M
Montanova Capital, LLC Hedge fund	+2.5M New position	2.5M	$82.4M
Wellington Management Group LLP Active manager	+2.2M New position	2.2M	$72.5M
Price T Rowe Associates Inc Active manager	+1.7M New position	1.7M	$57.1M
T. Rowe Price Investment Management, Inc. Active manager	+1.6M New position	1.6M	$52.8M
Citadel Advisors LLC Hedge fund	+959K New position	959K	$31.6M
Jennison Associates LLC Active manager	+813K New position	813K	$26.8M
Braidwell LP Hedge fund	+801K New position	801K	$26.4M
Deerfield Management Company, L.P. Hedge fund	+731K New position	731K	$24.1M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
No institution cut its holding.

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
None of the active managers on our list.

New positions

largest by value

Institution	Shares	Value June 30, 2026
FMR LLCActive manager	5.8M	$192M
Novo Holdings A/S	3.9M	$128M
Sr One Capital Management, LP	3.3M	$109M
Perceptive Advisors LLCHedge fund	2.7M	$88.1M
Montanova Capital, LLCHedge fund	2.5M	$82.4M
Nvp Associates, LLC	2.3M	$74.7M
Wellington Management Group LLPActive manager	2.2M	$72.5M
Price T Rowe Associates IncActive manager	1.7M	$57.1M
Catalio Capital Management, LP	1.7M	$55.2M
T. Rowe Price Investment Management, Inc.Active manager	1.6M	$52.8M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
No institution sold its whole holding.

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 92
Ten largest holders: 62.9%
Index fund managers: 6.1%
Active managers and hedge funds: 51.6%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	New	Net change in shares	Net %
Active managers and hedge funds	29	29	+22.7M	—
Index fund managers	8	8	+2.7M	—
Other institutions	53	53	+18.5M	—

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Avalyn Pharma.

Only managers that filed a holdings report for both quarters are compared (90 here). 2 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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