Citadel Advisors’s Omeros OMER Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $2.32M | Sell |
219,800
-174,800
| -44% | -$2.06M | ﹤0.01% | 5773 |
|
|
2025
Q4 | $6.78M | Buy |
394,600
+312,200
| +379% | +$2.69M | ﹤0.01% | 3819 |
|
|
2025
Q3 | $338K | Buy |
+82,400
| New | +$327K | ﹤0.01% | 10085 |
|
|
2025
Q2 | – | Sell |
-33,000
| Closed | -$271K | – | 14340 |
|
|
2025
Q1 | $271K | Sell |
33,000
-46,600
| -59% | -$411K | ﹤0.01% | 9814 |
|
|
2024
Q4 | $786K | Buy |
79,600
+26,500
| +50% | +$182K | ﹤0.01% | 7546 |
|
|
2024
Q3 | $211K | Sell |
53,100
-9,500
| -15% | -$40.5K | ﹤0.01% | 10038 |
|
|
2024
Q2 | $254K | Buy |
62,600
+33,300
| +114% | +$119K | ﹤0.01% | 9458 |
|
|
2024
Q1 | $101K | Sell |
29,300
-59,200
| -67% | -$225K | ﹤0.01% | 11345 |
|
|
2023
Q4 | $289K | Sell |
88,500
-45,600
| -34% | -$96.3K | ﹤0.01% | 9238 |
|
|
2023
Q3 | $392K | Buy |
134,100
+12,600
| +10% | +$50.5K | ﹤0.01% | 8604 |
|
|
2023
Q2 | $661K | Buy |
121,500
+12,700
| +12% | +$74.2K | ﹤0.01% | 7322 |
|
|
2023
Q1 | $506K | Sell |
108,800
-94,200
| -46% | -$340K | ﹤0.01% | 8285 |
|
|
2022
Q4 | $459K | Buy |
203,000
+12,300
| +6% | +$33.9K | ﹤0.01% | 8422 |
|
|
2022
Q3 | $601K | Sell |
190,700
-40,400
| -17% | -$187K | ﹤0.01% | 8060 |
|
|
2022
Q2 | $636K | Buy |
231,100
+77,200
| +50% | +$262K | ﹤0.01% | 8108 |
|
|
2022
Q1 | $925K | Buy |
153,900
+20,800
| +16% | +$130K | ﹤0.01% | 7889 |
|
|
2021
Q4 | $856K | Sell |
133,100
-135,200
| -50% | -$980K | ﹤0.01% | 8337 |
|
|
2021
Q3 | $3.7M | Buy |
268,300
+137,100
| +104% | +$2.05M | ﹤0.01% | 4903 |
|
|
2021
Q2 | $1.95M | Buy |
131,200
+56,000
| +74% | +$940K | ﹤0.01% | 6688 |
|
|
2021
Q1 | $1.34M | Buy |
75,200
+6,600
| +10% | +$128K | ﹤0.01% | 7385 |
|
|
2020
Q4 | $980K | Sell |
68,600
-16,100
| -19% | -$197K | ﹤0.01% | 6832 |
|
|
2020
Q3 | $856K | Buy |
84,700
+35,600
| +73% | +$458K | ﹤0.01% | 6312 |
|
|
2020
Q2 | $723K | Sell |
49,100
-10,100
| -17% | -$151K | ﹤0.01% | 6425 |
|
|
2020
Q1 | $792K | Sell |
59,200
-137,700
| -70% | -$1.83M | ﹤0.01% | 5721 |
|
|
2019
Q4 | $2.77M | Sell |
196,900
-8,200
| -4% | -$120K | ﹤0.01% | 3900 |
|
|
2019
Q3 | $3.35M | Buy |
205,100
+100
| +0% | +$1.72K | ﹤0.01% | 3680 |
|
|
2019
Q2 | $3.22M | Buy |
205,000
+91,400
| +80% | +$1.64M | ﹤0.01% | 3750 |
|
|
2019
Q1 | $1.97M | Buy |
113,600
+45,300
| +66% | +$653K | ﹤0.01% | 4495 |
|
|
2018
Q4 | $761K | Buy |
68,300
+16,000
| +31% | +$224K | ﹤0.01% | 5732 |
|
|
2018
Q3 | $1.28M | Sell |
52,300
-14,000
| -21% | -$312K | ﹤0.01% | 5119 |
|
|
2018
Q2 | $1.2M | Sell |
66,300
-28,100
| -30% | -$487K | ﹤0.01% | 4902 |
|
|
2018
Q1 | $1.05M | Buy |
94,400
+61,100
| +183% | +$858K | ﹤0.01% | 4729 |
|
|
2017
Q4 | $647K | Buy |
33,300
+2,700
| +9% | +$50.6K | ﹤0.01% | 5289 |
|
|
2017
Q3 | $662K | Sell |
30,600
-28,900
| -49% | -$612K | ﹤0.01% | 4921 |
|
|
2017
Q2 | $1.18M | Buy |
59,500
+3,900
| +7% | +$68.1K | ﹤0.01% | 3851 |
|
|
2017
Q1 | $841K | Buy |
55,600
+24,900
| +81% | +$272K | ﹤0.01% | 4251 |
|
|
2016
Q4 | $305K | Buy |
30,700
+10,100
| +49% | +$103K | ﹤0.01% | 5643 |
|
|
2016
Q3 | $230K | Sell |
20,600
-4,300
| -17% | -$49.1K | ﹤0.01% | 6106 |
|
|
2016
Q2 | $262K | Sell |
24,900
-1,800
| -7% | -$22.2K | ﹤0.01% | 5424 |
|
|
2016
Q1 | $410K | Buy |
26,700
+10,600
| +66% | +$129K | ﹤0.01% | 4684 |
|
|
2015
Q4 | $253K | Sell |
16,100
-14,300
| -47% | -$198K | ﹤0.01% | 5471 |
|
|
2015
Q3 | $333K | Sell |
30,400
-6,900
| -18% | -$107K | ﹤0.01% | 5408 |
|
|
2015
Q2 | $671K | Buy |
37,300
+5,800
| +18% | +$125K | ﹤0.01% | 4531 |
|
|
2015
Q1 | $694K | Buy |
31,500
+6,100
| +24% | +$139K | ﹤0.01% | 4440 |
|
|
2014
Q4 | $629K | Buy |
25,400
+7,100
| +39% | +$129K | ﹤0.01% | 4387 |
|
|
2014
Q3 | $233K | Sell |
18,300
-16,000
| -47% | -$224K | ﹤0.01% | 5565 |
|
|
2014
Q2 | $597K | Buy |
34,300
+15,100
| +79% | +$190K | ﹤0.01% | 4157 |
|
|
2014
Q1 | $232K | Buy |
19,200
+4,100
| +27% | +$50.4K | ﹤0.01% | 5356 |
|
|
2013
Q4 | $170K | Buy |
+15,100
| New | +$146K | ﹤0.01% | 5187 |
|
Other funds holding OMER
ISL
VCM
VPM
Citadel Advisors's OMER Position: Q1 2026 in Review
Citadel Advisors increased its Omeros (OMER) stake by 8.2% in Q1 2026, buying an estimated $232K and bringing the position to 260,048 shares worth $2.75M. The position accounts for ﹤0.01% of the portfolio, ranked #5441.
Citadel Advisors first reported a position in OMER in Q4 2013 and has held it in 39 quarters since. The position peaked at $12.6M in Q3 2018. 161 funds tracked by Wall St. Rank hold OMER as of Q1 2026.
- Citadel Advisors held 260,048 shares of Omeros worth $2.75M as of Q1 2026.
- Citadel Advisors bought 19,696 Omeros shares in Q1 2026, an estimated $232K.
- Omeros made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #5441 holding.
- Citadel Advisors first reported a position in Omeros in Q4 2013 and has held it in 39 quarters since.
- Citadel Advisors's Omeros position peaked at $12.6M in Q3 2018.
- 161 funds tracked by Wall St. Rank held Omeros as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.