Avalyn Pharma

AVLN · NASDAQ

$24.63+$1.30 (+5.57%)TodayMarket closed ·
Prev close $23.33

Who owns AVLN

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 62.3% of AVLN’s shares.

  • Fidelity Management & Research Company LLC13.1%
  • Novo Holdings A/S8.8%
  • SR One Capital Management, LP7.5%
  • Perceptive Advisors LLC6.0%
  • Next 6 largest institutions27.0%
  • All other shareholders37.7%
Top institutional holders of AVLN
HolderShares% of shares
Fidelity Management & Research Company LLC5.79M13.07%
Novo Holdings A/S3.88M8.76%
SR One Capital Management, LP3.31M7.46%
Perceptive Advisors LLC2.68M6.03%
Montanova Capital, LLC2.50M5.65%
Norwest Venture Partners2.27M5.12%
Wellington Management Company, LLP2.20M4.97%
T. Rowe Price Associates, Inc.1.71M3.86%
Catalio Capital Management, LP1.68M3.78%
T. Rowe Price Investment Management, Inc.1.60M3.62%

Largest mutual fund holders

Top mutual fund holders of AVLN
HolderShares% of shares
Fidelity Small Cap Growth Fund1.23M2.78%
Fidelity Small Cap Growth K6 Fund627.19K1.41%
Vanguard Total Stock Market Index Fund534.44K1.21%
iShares Russell 2000 ETF433.59K0.98%
T. Rowe Price Small Cap Stock Fund415.61K0.94%

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders bought $25.00M (4 trades) of AVLN on the open market, with no sales.

Latest AVLN insider transactions
InsiderTypeSharesValue
Meyer Robert J.Award31.18K—
FMR LLCOther377.95K—
FMR LLCOther225.84K—
FMR LLCOther872.87K—
FMR LLCOther80.29K—
FMR LLCOther727.59K—
FMR LLCOther377.95K—
FMR LLCOther225.84K—
FMR LLCOther872.87K—
FMR LLCOther80.29K—

Short interest

Settled Sep 30, 2026

Shares short
2.52M
Days to cover
8.52
% of shares outstanding
5.68%
Average daily volume
295.21K
Change since last report
+20.2%

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