ETON Eton Pharmaceuticals, Inc.

NASDAQ
$57.07

Eton Pharmaceuticals, Inc. (ETON) 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
+23.81
13 buyers / 8 sellers
BUYING
Funds compared
22
funds with comparable ETON positions
20 current holders · 16 prior-quarter holders
Net share change
+1.51M
+1.89M added, -376.1K cut
Position activity
6 new 7 increased 6 reduced 2 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
Nantahala Capital Management Event Long/Short Increased +1.18M +100.0% $42.6M 2.7% 64
Point72 Asset Management, L.P. New +44.9K — $1.6M 0.0% 61
D. E. Shaw & Co., Inc. Quant New +188.5K — $6.8M 0.0% 60
Soleus Capital Management Growth Healthcare Sold Out -166.4K -100.0% $6.0M 0.0% 60
MILLENNIUM MANAGEMENT LLC Sold Out -14.9K -100.0% $540.8K 0.0% 57
Squarepoint Ops LLC Quant New +59.6K — $2.2M 0.0% 57
Gotham Asset Management, LLC Quant Value New +16.0K — $578.5K 0.0% 54
MARSHALL WACE, LLP Long/Short Increased +166.5K +201.2% $6.0M 0.0% 52
Man Group Event Long/Short New +16.2K — $584.7K 0.0% 52
Y-Intercept Quant New +33.5K — $1.2M 0.0% 50

Most significant buyers

By move score, not size.

  • Nantahala Capital Management Increased · +1.18M
  • Point72 Asset Management, L.P. New · +44.9K
  • D. E. Shaw & Co., Inc. New · +188.5K
  • Squarepoint Ops LLC New · +59.6K
  • Gotham Asset Management, LLC New · +16.0K

Most significant sellers

By move score, not size.

  • Soleus Capital Management Sold Out · -166.4K
  • MILLENNIUM MANAGEMENT LLC Sold Out · -14.9K
  • RENAISSANCE TECHNOLOGIES LLC Reduced · -111.0K
  • CITADEL ADVISORS LLC Reduced · -58.8K
  • Brevan Howard Capital Management Reduced · -14.6K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Nantahala Capital Management 3 2.4M 1.2M +1.18M +100.0% 2.7% Increased 64
Point72 Asset Management, L.P. 1 44.9K 0 +44.9K — 0.0% New 61
D. E. Shaw & Co., Inc. 1 188.5K 0 +188.5K — 0.0% New 60
Soleus Capital Management 2 0 166.4K -166.4K -100.0% 0.0% Sold Out 60
MILLENNIUM MANAGEMENT LLC 2 0 14.9K -14.9K -100.0% 0.0% Sold Out 57
Squarepoint Ops LLC 2 59.6K 0 +59.6K — 0.0% New 57
Gotham Asset Management, LLC 2 16.0K 0 +16.0K — 0.0% New 54
MARSHALL WACE, LLP 2 249.2K 82.7K +166.5K +201.2% 0.0% Increased 52
Man Group 3 16.2K 0 +16.2K — 0.0% New 52
Y-Intercept 4 33.5K 0 +33.5K — 0.0% New 50
RENAISSANCE TECHNOLOGIES LLC 1 52.3K 163.3K -111.0K -68.0% 0.0% Reduced 46
Woodline Partners LP 2 310.9K 170.7K +140.2K +82.1% 0.0% Increased 46
Aquatic Capital Management 4 43.8K 12.1K +31.7K +263.1% 0.1% Increased 44
CITADEL ADVISORS LLC 1 49.0K 107.8K -58.8K -54.6% 0.0% Reduced 42
Brevan Howard Capital Management 3 8.0K 22.5K -14.6K -64.7% 0.0% Reduced 35
Voleon Capital Management 3 7.2K 13.3K -6.1K -45.6% 0.0% Reduced 31
TWO SIGMA INVESTMENTS, LP 2 116.3K 106.4K +9.9K +9.3% 0.0% Increased 28
Quantbot Technologies 4 4.6K 7.8K -3.2K -41.6% 0.0% Reduced 25
Jain Global 3 7.2K 8.3K -1.1K -12.9% 0.0% Reduced 24
Walleye Capital 3 86.2K 82.0K +4.3K +5.2% 0.0% Increased 21
Boothbay Fund Management 4 57.5K 55.6K +1.9K +3.4% 0.0% Increased 19
EcoR1 Capital 2 2.2M 2.2M 0 +0.0% 3.9% Unchanged 39

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.