AVLN Avalyn Pharma Inc.

NSC
$37.39

Avalyn Pharma Inc. (AVLN) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
+100.00
20 buyers / 0 sellers
STRONG BUYING
Funds compared
20
funds with comparable AVLN positions
20 current holders · 0 prior-quarter holders
Net share change
+9.84M
+9.84M added, 0 cut
Position activity
20 new 0 increased 0 reduced 0 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
Perceptive Advisors Growth Healthcare New +2.68M — $88.1M 1.4% 69
Suvretta Capital Management Long/Short Growth New +2.50M — $82.4M 1.8% 68
Deerfield Management Growth Healthcare New +731.0K — $24.1M 0.3% 62
Braidwell Growth Healthcare New +801.4K — $26.4M 1.0% 62
Baker Bros. Advisors Growth Healthcare New +350.0K — $11.5M 0.1% 61
Soleus Capital Management Growth Healthcare New +419.0K — $13.8M 0.5% 59
Rock Springs Capital Management Growth Healthcare New +662.9K — $21.8M 1.1% 58
CITADEL ADVISORS LLC Quant New +959.1K — $31.6M 0.0% 58
Balyasny Asset Management L.P. New +34.0K — $1.1M 0.0% 55
D. E. Shaw & Co., Inc. Quant New +23.0K — $757.2K 0.0% 54

Most significant buyers

By move score, not size.

  • Perceptive Advisors New · +2.68M
  • Suvretta Capital Management New · +2.50M
  • Deerfield Management New · +731.0K
  • Braidwell New · +801.4K
  • Baker Bros. Advisors New · +350.0K

Most significant sellers

By move score, not size.

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Perceptive Advisors 1 2.7M 0 +2.68M — 1.4% New 69
Suvretta Capital Management 2 2.5M 0 +2.50M — 1.8% New 68
Deerfield Management 1 731.0K 0 +731.0K — 0.3% New 62
Braidwell 2 801.4K 0 +801.4K — 1.0% New 62
Baker Bros. Advisors 1 350.0K 0 +350.0K — 0.1% New 61
Soleus Capital Management 2 419.0K 0 +419.0K — 0.5% New 59
Rock Springs Capital Management 3 662.9K 0 +662.9K — 1.1% New 58
CITADEL ADVISORS LLC 1 959.1K 0 +959.1K — 0.0% New 58
Balyasny Asset Management L.P. 2 34.0K 0 +34.0K — 0.0% New 55
D. E. Shaw & Co., Inc. 1 23.0K 0 +23.0K — 0.0% New 54
Ghisallo Capital Management 2 70.0K 0 +70.0K — 0.1% New 53
TWO SIGMA INVESTMENTS, LP 2 6.7K 0 +6.7K — 0.0% New 53
ADAR1 Capital Management 3 146.4K 0 +146.4K — 0.2% New 52
Davidson Kempner Capital Management 2 23.0K 0 +23.0K — 0.0% New 52
Zimmer Partners 2 62.5K 0 +62.5K — 0.0% New 52
Woodline Partners LP 2 151.0K 0 +151.0K — 0.0% New 52
LMR Partners 3 54.3K 0 +54.3K — 0.0% New 51
Moore Capital Management 3 110.5K 0 +110.5K — 0.1% New 51
Hudson Bay Capital Management 3 14.2K 0 +14.2K — 0.0% New 49
Brevan Howard Capital Management 3 43.0K 0 +43.0K — 0.0% New 47

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.