Ticker · CUSIP 682143102
Holders (tracked)
9
Combined shares
3,086,119
Combined value
$51.36M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
SEC event timeline
15 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−152,876 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−250,236 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−408,557 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+39,997 shares · 2025Q413F
- T. Rowe Price added2026-02-17+6,217 shares · 2025Q413F
- Wellington Management added2026-02-17+8,170 shares · 2025Q413F
- AQR Capital Management added2026-02-17+1,532 shares · 2025Q413F
- Renaissance Technologies exited2026-02-12−344,500 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2025-11-14+132,393 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+263,095 shares · 2025Q313F
- AQR Capital Management added2025-11-14+7,444 shares · 2025Q313F
- Wellington Management added2025-11-14+31,034 shares · 2025Q313F
- D.E. Shaw & Co. trimmed2025-11-14−642,191 shares · 2025Q313F
- T. Rowe Price added2025-11-14+12,737 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−38,200 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions0
—
Added to4
- Izzy Englander (Millennium Mgmt)+39,997$687K
- Wellington Management+8,170$140K
- AQR Capital Management+1,532$26K
- T. Rowe Price+6,217$107
Trimmed3
- Two Sigma Investments−408,557$7.0M
- D.E. Shaw & Co.−250,236$4.3M
- Ken Griffin (Citadel Advisors)−152,876$2.6M
Exited1
- Renaissance Technologies−344,500$1.4M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 11 | $46.3M |
| 2022Q2 | 11 | $19.0M |
| 2022Q3 | 10 | $15K |
| 2022Q4 | 10 | $8.7M |
| 2023Q1 | 9 | $13.8M |
| 2023Q2 | 9 | $34.9M |
| 2023Q3 | 10 | $17.1M |
| 2023Q4 | 7 | $14.9M |
| 2024Q1 | 8 | $15.9M |
| 2024Q2 | 9 | $24.7M |
| 2024Q3 | 9 | $8.5M |
| 2024Q4 | 8 | $24.3M |
| 2025Q1 | 9 | $24.2M |
| 2025Q2 | 9 | $10.6M |
| 2025Q3 | 10 | $15.2M |
| 2025Q4 | 9 | $51.4M |
Who owns OMER
9 super-investors · 2025Q4
Tracked stake
3.09M
shares
Combined value
$51M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added4Trim5
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | D.E. Shaw & Co. | 755.0K | $13M |
| 2 | Two Sigma Investments | 524.8K | $9M |
| 3 | Izzy Englander Millennium Mgmt | 441.8K | $8M |
| 4 | Ken Griffin Citadel Advisors | 408.4K | $7M |
| 5 | Ken Griffin Citadel Advisors | 394.6K | $7M |
| 6 | Ken Griffin Citadel Advisors | 240.4K | $4M |
| 7 | Wellington Management | 202.6K | $3M |
| 8 | AQR Capital Management | 22.8K | $392K |
| 9 | T. Rowe Price | 95.7K | $2K |
Recent moves
20 transactions
- TRIMD.E. Shaw & Co.−250,236 · 2025Q4
- +1,532 · 2025Q4
- +6,217 · 2025Q4
- −152,876 · 2025Q4
- +8,170 · 2025Q4
- −408,557 · 2025Q4
- +39,997 · 2025Q4
- −344,500 · 2025Q4
- +31,034 · 2025Q3
- +132,393 · 2025Q3
- +263,095 · 2025Q3
- +7,444 · 2025Q3
- +12,737 · 2025Q3
- TRIMD.E. Shaw & Co.−642,191 · 2025Q3
- −38,200 · 2025Q3
- +1,287 · 2025Q2
- +564,580 · 2025Q2
- −45,831 · 2025Q2
- TRIMD.E. Shaw & Co.−291,102 · 2025Q2
- +27,411 · 2025Q2
Embed this chart
Paste this iframe anywhere to embed the live OMER chart.
<iframe src="https://openstocks.me/embed/stock/OMER" width="100%" height="480" frameborder="0" loading="lazy" title="OMER chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>