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Omeros

127 hedge funds and large institutions have $87.3M invested in Omeros in 2025 Q2 according to their latest regulatory filings, with 17 funds opening new positions, 45 increasing their positions, 35 reducing their positions, and 25 closing their positions.

New
Increased
Maintained
Reduced
Closed

29% more repeat investments, than reductions

Existing positions increased: 45 | Existing positions reduced: 35

2.1% more ownership

Funds ownership: 47.57%49.68% (+2.1%)

7% less funds holding

Funds holding: 136127 (-9)

32% less first-time investments, than exits

New positions opened: 17 | Existing positions closed: 25

55% less call options, than puts

Call options by funds: $1.44M | Put options by funds: $3.19M

61% less capital invested

Capital invested by funds: $227M → $87.3M (-$139M)

Holders
127
Holders Change
-9
Holders Change %
-6.62%
% of All Funds
1.67%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
17
Increased
45
Reduced
35
Closed
25
Calls
$1.44M
Puts
$3.19M
Net Calls
-$1.76M
Net Calls Change
+$434K
Name Holding Trade Value Shares
Change
Change in
Stake
IAIM
76
International Assets Investment Management
Florida
$46.6K +$77.4K +15,550 New
Cambridge Investment Research Advisors
77
Cambridge Investment Research Advisors
Iowa
$46K +$21.5K +4,319 +39%
AC
78
Apella Capital
Connecticut
$44K
AQR Capital Management
79
AQR Capital Management
Connecticut
$41.6K -$104K -20,838 -60%
ProShare Advisors
80
ProShare Advisors
Maryland
$41.3K -$4.79K -961 -7%
HI
81
Harbour Investments
Wisconsin
$40.4K +$21.2K +4,251 +46%
SEI Investments
82
SEI Investments
Pennsylvania
$40.3K +$6.69K +1,344 +11%
TRCT
83
Tower Research Capital (TRC)
New York
$40.2K +$59.6K +11,971 +830%
AI
84
Atom Investors
Texas
$36.4K +$60.4K +12,133 New
CUAMC
85
China Universal Asset Management Company
China
$35.3K +$717 +144 +1%
PFSRSONJ
86
Police & Firemen's Retirement System of New Jersey
New Jersey
$35.2K
Fidelity Investments
87
Fidelity Investments
Massachusetts
$34.9K -$8.47K -1,700 -13%
HSBC Holdings
88
HSBC Holdings
United Kingdom
$34.8K -$29.7K -5,957 -35%
New York State Common Retirement Fund
89
New York State Common Retirement Fund
New York
$34.2K
BRWA
90
B. Riley Wealth Advisors
Florida
$32.3K +$53.6K +10,760 New
SFS
91
Sowell Financial Services
Arkansas
$32.3K
APP
92
Avantax Planning Partners
Iowa
$30.3K +$50.3K +10,100 New
Raymond James Financial
93
Raymond James Financial
Florida
$29.3K -$13.8K -2,768 -22%
FFA
94
Farther Finance Advisors
California
$22.5K +$7.24K +1,453 +24%
Legal & General Group
95
Legal & General Group
United Kingdom
$18.3K +$3.2K +643 +12%
AA
96
Ancora Advisors
Ohio
$17.4K
Osaic Holdings
97
Osaic Holdings
Arizona
$16K -$777K -155,936 -97%
AIP
98
Ameritas Investment Partners
Nebraska
$15.1K
Russell Investments Group
99
Russell Investments Group
United Kingdom
$15.1K +$20.3K +4,079 +434%
California State Teachers Retirement System (CalSTRS)
100
California State Teachers Retirement System (CalSTRS)
California
$12.2K

OMER Hedge Fund Activity: Q2 2025 in Review

127 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Omeros (OMER) for Q2 2025, worth a combined $87.3M — down 61% from $227M a quarter earlier.

Sellers outnumbered buyers: 25 funds closed out of OMER and 17 opened new positions — a net loss of 8 holders — while 35 trimmed existing stakes and 45 added.

The largest buyer was Morgan Stanley, adding an estimated $2.96M. The largest seller was Nomura Holdings, cutting an estimated $2.94M.

  • 127 institutional investors held Omeros (OMER) as of Q2 2025, down from 136 in Q1 2025.
  • Funds reported $87.3M of Omeros stock for Q2 2025, down 61% quarter-over-quarter.
  • 17 funds opened new Omeros positions in Q2 2025 and 25 closed out, a net change of -8 holders.
  • The largest Omeros buyer in Q2 2025 was Morgan Stanley, an estimated $2.96M added.
  • The largest Omeros seller in Q2 2025 was Nomura Holdings, an estimated $2.94M sold.

Based on aggregated 13F filings for Q2 2025.