Rafferty Asset Management
OMER icon

Rafferty Asset Management’s Omeros OMER Stock Holding History

Rafferty Asset Management’s Portfolio OMER Stock Details OMER Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$185K Buy
19,474
+7,176
+58% +$85.4K ﹤0.01% 1113
2026
Q1 		$130K Buy
12,298
+72
+0.6% +$848 ﹤0.01% 1047
2025
Q4 		$210K Buy
+12,226
New +$105K ﹤0.01% 1095
2022
Q1 		– Sell
-16,149
Closed -$104K – 1298
2021
Q4 		$104K Buy
+16,149
New +$117K ﹤0.01% 1256

Other funds holding OMER

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
ISL
Ingalls & Snyder LLC New York $3.66B AUM 57.76% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Stifel Financial
Stifel Financial St. Louis, Missouri $120B AUM 27.84% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Rafferty Asset Management's OMER Position: Q2 2026 in Review

Rafferty Asset Management increased its Omeros (OMER) stake by 58% in Q2 2026, buying an estimated $85.4K and bringing the position to 19,474 shares worth $185K. The position accounts for ﹤0.01% of the portfolio, ranked #1113.

Rafferty Asset Management first reported a position in OMER in Q4 2021 and has held it in 4 quarters since. The position peaked at $210K in Q4 2025. 172 funds tracked by Wall St. Rank hold OMER as of Q2 2026.

  • Rafferty Asset Management held 19,474 shares of Omeros worth $185K as of Q2 2026.
  • Rafferty Asset Management bought 7,176 Omeros shares in Q2 2026, an estimated $85.4K.
  • Omeros made up ﹤0.01% of Rafferty Asset Management's portfolio in Q2 2026, its #1113 holding.
  • Rafferty Asset Management first reported a position in Omeros in Q4 2021 and has held it in 4 quarters since.
  • Rafferty Asset Management's Omeros position peaked at $210K in Q4 2025.
  • 172 funds tracked by Wall St. Rank held Omeros as of Q2 2026.

Based on Rafferty Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.