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Eton Pharmaceutcials

116 hedge funds and large institutions have $439M invested in Eton Pharmaceutcials in 2026 Q1 according to their latest regulatory filings, with 30 funds opening new positions, 36 increasing their positions, 32 reducing their positions, and 17 closing their positions.

New
Increased
Maintained
Reduced
Closed

400% more funds holding in top 10

Funds holding in top 10: 15 (+4)

76% more first-time investments, than exits

New positions opened: 30 | Existing positions closed: 17

58% more capital invested

Capital invested by funds: $277M → $439M (+$161M)

25% more call options, than puts

Call options by funds: $4.17M | Put options by funds: $3.33M

13% more repeat investments, than reductions

Existing positions increased: 36 | Existing positions reduced: 32

12% more funds holding

Funds holding: 104116 (+12)

4% more ownership

Funds ownership: 61.18%65.18% (+4%)

Holders
116
Holders Change
+12
Holders Change %
+11.54%
% of All Funds
1.43%
Holding in Top 10
5
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+400%
% of All Funds
0.06%
New
30
Increased
36
Reduced
32
Closed
17
Calls
$4.17M
Puts
$3.33M
Net Calls
+$834K
Net Calls Change
-$979K
Name Holding Trade Value Shares
Change
Change in
Stake
Renaissance Technologies
26
Renaissance Technologies
New York
$4.03M -$741K -42,379 -21%
DC
27
Diametric Capital
Massachusetts
$3.87M -$634K -36,229 -19%
JP Morgan Chase
28
JP Morgan Chase
New York
$3.84M -$272K -15,563 -8%
VPM
29
Vanguard Portfolio Management
Pennsylvania
$3.75M +$2.65M +151,748 New
Bank of America
30
Bank of America
North Carolina
$3.56M +$692K +39,571 +38%
Bank of New York Mellon
31
Bank of New York Mellon
New York
$2.75M -$288K -16,445 -13%
Citadel Advisors
32
Citadel Advisors
Florida
$2.66M +$589K +33,671 +45%
Two Sigma Investments
33
Two Sigma Investments
New York
$2.63M +$521K +29,791 +39%
Jane Street
34
Jane Street
New York
$2.35M +$653K +37,364 +64%
Marshall Wace
35
Marshall Wace
United Kingdom
$2.04M +$1.45M +82,721 New
Walleye Capital
36
Walleye Capital
New York
$2.02M +$1.43M +81,963 New
Wellington Management Group
37
Wellington Management Group
Massachusetts
$1.73M -$194K -11,077 -14%
Charles Schwab
38
Charles Schwab
California
$1.7M -$147K -8,417 -11%
SEI Investments
39
SEI Investments
Pennsylvania
$1.43M +$1.01M +58,034 New
N
40
Nuveen
North Carolina
$1.43M -$16.9K -967 -2%
BFM
41
Boothbay Fund Management
New York
$1.37M +$972K +55,605 New
XT
42
XTX Topco
Cayman Islands
$1.28M +$337K +19,245 +59%
Barclays
43
Barclays
United Kingdom
$1.22M -$36.3K -2,074 -4%
EI
44
EAM Investors
California
$1.2M +$850K +48,623 New
Connor, Clark & Lunn Investment Management (CC&L)
45
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$1.05M -$593K -33,893 -44%
ACA
46
Anchor Capital Advisors
Massachusetts
$1.01M +$3.32K +190 +0.5%
MHP
47
Manatuck Hill Partners
Connecticut
$987K +$699K +40,000 New
N
48
Numerai
California
$922K +$653K +37,356 New
Susquehanna International Group
49
Susquehanna International Group
Pennsylvania
$841K +$596K +34,084 New
William Blair & Company
50
William Blair & Company
Illinois
$800K

ETON Hedge Fund Activity: Q1 2026 in Review

116 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Eton Pharmaceutcials (ETON) for Q1 2026, worth a combined $439M — up 58% from $277M a quarter earlier.

Buyers outnumbered sellers: 30 funds opened new ETON positions and 17 closed out — a net gain of 13 holders — while 36 added to existing stakes and 32 trimmed.

The largest buyer was Pillsbury Lake Capital, opening a new position worth an estimated $6.38M. The largest seller was Jefferies Financial Group, exiting entirely with an estimated $2M sold.

  • 116 institutional investors held Eton Pharmaceutcials (ETON) as of Q1 2026, up from 104 in Q4 2025.
  • Funds reported $439M of Eton Pharmaceutcials stock for Q1 2026, up 58% quarter-over-quarter.
  • 30 funds opened new Eton Pharmaceutcials positions in Q1 2026 and 17 closed out, a net change of +13 holders.
  • The largest Eton Pharmaceutcials buyer in Q1 2026 was Pillsbury Lake Capital, an estimated $6.38M added.
  • The largest Eton Pharmaceutcials seller in Q1 2026 was Jefferies Financial Group, an estimated $2M sold.

Based on aggregated 13F filings for Q1 2026.