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Eton Pharmaceutcials

104 hedge funds and large institutions have $277M invested in Eton Pharmaceutcials in 2025 Q4 according to their latest regulatory filings, with 21 funds opening new positions, 28 increasing their positions, 37 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

18,130% more call options, than puts

Call options by funds: $1.82M | Put options by funds: $10K

11% more first-time investments, than exits

New positions opened: 21 | Existing positions closed: 19

1% more funds holding

Funds holding: 103104 (+1)

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

6.65% less ownership

Funds ownership: 67.83%61.18% (-6.7%)

24% less repeat investments, than reductions

Existing positions increased: 28 | Existing positions reduced: 37

30% less capital invested

Capital invested by funds: $398M → $277M (-$121M)

Holders
104
Holders Change
+1
Holders Change %
+0.97%
% of All Funds
1.26%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.01%
New
21
Increased
28
Reduced
37
Closed
19
Calls
$1.82M
Puts
$10K
Net Calls
+$1.81M
Net Calls Change
-$340K
Name Holding Trade Value Shares
Change
Change in
Stake
OM
1
Opaleye Management
Massachusetts
$48.4M
EC
2
EcoR1 Capital
California
$34.3M
BlackRock
3
BlackRock
New York
$29.4M +$608K +34,546 +2%
Vanguard Group
4
Vanguard Group
Pennsylvania
$22.8M +$80.1K +4,553 +0.3%
NCM
5
Nantahala Capital Management
Connecticut
$19.9M
Geode Capital Management
6
Geode Capital Management
Massachusetts
$9.56M -$158K -8,979 -2%
State Street
7
State Street
Massachusetts
$8.49M +$1.12M +63,480 +14%
Morgan Stanley
8
Morgan Stanley
New York
$8.35M -$1.62M -92,132 -16%
NPT
9
National Philanthropic Trust
Pennsylvania
$8.32M
WIM
10
Westside Investment Management
California
$7.96M -$28.2K -1,600 -0.3%
OAM
11
Oberweis Asset Management
Illinois
$7.29M +$4.2M +238,940 +124%
TSW
12
Thompson Siegel & Walmsley
Virginia
$6.91M -$176K -10,025 -2%
BNP Paribas Financial Markets
13
BNP Paribas Financial Markets
France
$4.69M +$839K +47,668 +21%
Northern Trust
14
Northern Trust
Illinois
$3.92M -$232K -13,202 -5%
CC
15
Cannell Capital
Wyoming
$3.67M -$4.2M -238,488 -52%
Renaissance Technologies
16
Renaissance Technologies
New York
$3.48M -$2.09M -118,921 -37%
Goldman Sachs
17
Goldman Sachs
New York
$3.32M +$107K +6,099 +3%
DC
18
Diametric Capital
Massachusetts
$3.27M +$1.65M +93,846 +94%
JP Morgan Chase
19
JP Morgan Chase
New York
$3.14M -$2.92M -165,978 -47%
LK
20
Lumbard & Kellner
New Hampshire
$2.96M -$23.9K -1,356 -0.8%
AC
21
Aristides Capital
Kentucky
$2.73M -$108K -6,151 -4%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$2.16M -$26.1K -1,482 -1%
UBS Group
23
UBS Group
Switzerland
$2.14M -$1.65M -93,687 -43%
JFG
24
Jefferies Financial Group
New York
$2M +$525K +29,860 +34%
Bank of America
25
Bank of America
North Carolina
$1.77M +$530K +30,139 +40%

ETON Hedge Fund Activity: Q4 2025 in Review

104 of the 8,239 institutional investors tracked by Wall St. Rank reported a position in Eton Pharmaceutcials (ETON) for Q4 2025, worth a combined $277M — down 30% from $398M a quarter earlier.

Buyers outnumbered sellers: 21 funds opened new ETON positions and 19 closed out — a net gain of 2 holders — while 28 added to existing stakes and 37 trimmed.

The largest buyer was Oberweis Asset Management, adding an estimated $4.2M. The largest seller was Royal Bank of Canada, cutting an estimated $8.41M.

  • 104 institutional investors held Eton Pharmaceutcials (ETON) as of Q4 2025, up from 103 in Q3 2025.
  • Funds reported $277M of Eton Pharmaceutcials stock for Q4 2025, down 30% quarter-over-quarter.
  • 21 funds opened new Eton Pharmaceutcials positions in Q4 2025 and 19 closed out, a net change of +2 holders.
  • The largest Eton Pharmaceutcials buyer in Q4 2025 was Oberweis Asset Management, an estimated $4.2M added.
  • The largest Eton Pharmaceutcials seller in Q4 2025 was Royal Bank of Canada, an estimated $8.41M sold.

Based on aggregated 13F filings for Q4 2025.