$AVLN

$25.83 -$1.31 (4.83%) Close

$AVLN Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 44.3M shares outstanding

Who owns AVLN?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 69.2%

FMR LLC 13.2% · Novo Holdings A/s 8.8%

Institutional ownership

100.0%

+100.0 pts vs last qtr

Institutional holders

+93 vs last qtr

Net shares bought

+44.3M

by institutions in Q2 2026

New / sold out

93 / 0

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC NEW +5.8M
Novo Holdings A/s NEW +3.9M

Biggest sellers in Q2 2026

None.

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Avalyn Pharma Inc in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Avalyn Pharma Inc.

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years0% Under 1 year100%

Quarterly turnover

—

of institutional shares changed hands

Top 10 managers, median time held

0 quarters

Super Investors

Investment managers reporting AVLN on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
F FMR LLC	5.8M	13.16%	NEW	Q2 '26	0.0%
Shares held by quarter Peak holding5.8M (Q2'26) Change over 8 quarters+5.8M Share of the company13.160% FMR LLC's full portfolio →
NH Novo Holdings A/s	3.9M	8.76%	NEW	Q2 '26	7.4%
Shares held by quarter Peak holding3.9M (Q2'26) Change over 8 quarters+3.9M Share of the company8.760% Novo Holdings A/s's full portfolio →

FMR LLC

5.8M

% of company

13.16%

Change vs last qtr

NEW

Held since

Q2 '26

Novo Holdings A/s

3.9M

% of company

8.76%

Change vs last qtr

NEW

Held since

Q2 '26

23 more super investors behind a free account

See every manager holding Avalyn Pharma Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AVLN on Form N-PORT; together they hold 18.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FS Fidelity Small Cap Growth Fund Fidelity Securities Fund	$35.5M	1.2M	2.78%	0.40%	July 31, 2026
FS Fidelity Small Cap Growth K6 Fund Fidelity Securities Fund	$18.1M	627.2K	1.41%	0.39%	July 31, 2026

Fidelity Small Cap Growth Fund

Fidelity Securities Fund

Position value

$35.5M

% of company

2.78%

% of the fund

0.40%

As of

July 31, 2026

Fidelity Small Cap Growth K6 Fund

Fidelity Securities Fund

Position value

$18.1M

% of company

1.41%

% of the fund

0.39%

As of

July 31, 2026

23 more funds behind a free account

See every fund holding Avalyn Pharma Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
SO SR One Capital Management, LLC 5%+ holder 13D · 7.5%	3.3M	7.46%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company7.460% Disclosed stake13D · 7.5% View the 13D/G filing →
AC Aaron Cowen 5%+ holder 13D · 5.6%	2.5M	5.65%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company5.650% Disclosed stake13D · 5.6% View the 13D/G filing →

SR One Capital Management, LLC

5%+ holder13D · 7.5%

3.3M

% of company

7.46%

Change vs last qtr

—

Held since

—

Aaron Cowen

5%+ holder13D · 5.6%

2.5M

% of company

5.65%

Change vs last qtr

—

Held since

—

4 more holders behind a free account

See every insider and 5%+ holder of Avalyn Pharma Inc.

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