Jane Street’s Omeros OMER Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $1.9M | Buy |
200,300
+77,800
| +64% | +$926K | ﹤0.01% | 5248 |
|
|
2026
Q1 | $1.29M | Buy |
122,500
+13,000
| +12% | +$153K | ﹤0.01% | 5943 |
|
|
2025
Q4 | $1.88M | Buy |
109,500
+95,200
| +666% | +$820K | ﹤0.01% | 4932 |
|
|
2025
Q3 | $58.6K | Buy |
+14,300
| New | +$56.7K | ﹤0.01% | 10303 |
|
|
2025
Q2 | – | Sell |
-46,900
| Closed | -$386K | – | 10501 |
|
|
2025
Q1 | $386K | Sell |
46,900
-168,200
| -78% | -$1.48M | ﹤0.01% | 7357 |
|
|
2024
Q4 | $2.13M | Buy |
+215,100
| New | +$1.48M | ﹤0.01% | 4010 |
|
|
2022
Q4 | – | Sell |
-11,200
| Closed | -$35K | – | 9833 |
|
|
2022
Q3 | $35K | Buy |
+11,200
| New | +$51.9K | ﹤0.01% | 9049 |
|
|
2022
Q2 | – | Sell |
-16,000
| Closed | -$96K | – | 10508 |
|
|
2022
Q1 | $96K | Sell |
16,000
-38,200
| -70% | -$238K | ﹤0.01% | 9474 |
|
|
2021
Q4 | $349K | Sell |
54,200
-49,700
| -48% | -$360K | ﹤0.01% | 7902 |
|
|
2021
Q3 | $1.43M | Sell |
103,900
-14,500
| -12% | -$217K | ﹤0.01% | 5177 |
|
|
2021
Q2 | $1.76M | Buy |
118,400
+77,900
| +192% | +$1.31M | ﹤0.01% | 4578 |
|
|
2021
Q1 | $721K | Sell |
40,500
-3,700
| -8% | -$72K | ﹤0.01% | 6102 |
|
|
2020
Q4 | $631K | Sell |
44,200
-261,300
| -86% | -$3.19M | ﹤0.01% | 5389 |
|
|
2020
Q3 | $3.09M | Buy |
305,500
+251,100
| +462% | +$3.23M | ﹤0.01% | 2405 |
|
|
2020
Q2 | $801K | Buy |
54,400
+19,800
| +57% | +$296K | ﹤0.01% | 4396 |
|
|
2020
Q1 | $463K | Sell |
34,600
-17,000
| -33% | -$226K | ﹤0.01% | 3697 |
|
|
2019
Q4 | $727K | Buy |
+51,600
| New | +$755K | ﹤0.01% | 3210 |
|
|
2019
Q2 | – | Sell |
-14,100
| Closed | -$245K | – | 5570 |
|
|
2019
Q1 | $245K | Buy |
+14,100
| New | +$203K | ﹤0.01% | 4461 |
|
|
2018
Q4 | – | Sell |
-20,500
| Closed | -$500K | – | 5479 |
|
|
2018
Q3 | $500K | Buy |
+20,500
| New | +$457K | ﹤0.01% | 3617 |
|
|
2018
Q2 | – | Sell |
-12,800
| Closed | -$143K | – | 5424 |
|
|
2018
Q1 | $143K | Buy |
+12,800
| New | +$180K | ﹤0.01% | 4533 |
|
|
2017
Q3 | – | Sell |
-34,900
| Closed | -$695K | – | 4887 |
|
|
2017
Q2 | $695K | Buy |
34,900
+12,600
| +57% | +$220K | ﹤0.01% | 2616 |
|
|
2017
Q1 | $337K | Buy |
+22,300
| New | +$244K | ﹤0.01% | 3296 |
|
Other funds holding OMER
ISL
Jane Street's OMER Position: Q2 2026 in Review
Jane Street reduced its Omeros (OMER) stake by 86% in Q2 2026, selling an estimated $1.49M and leaving 20,166 shares worth $192K. The position accounts for ﹤0.01% of the portfolio, ranked #10164.
Jane Street first reported a position in OMER in Q4 2013 and has held it in 30 quarters since. The position peaked at $7.96M in Q4 2025. 171 funds tracked by Wall St. Rank hold OMER as of Q2 2026.
- Jane Street held 20,166 shares of Omeros worth $192K as of Q2 2026.
- Jane Street sold 125,141 Omeros shares in Q2 2026, an estimated $1.49M.
- Omeros made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10164 holding.
- Jane Street first reported a position in Omeros in Q4 2013 and has held it in 30 quarters since.
- Jane Street's Omeros position peaked at $7.96M in Q4 2025.
- 171 funds tracked by Wall St. Rank held Omeros as of Q2 2026.
Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.