Ticker · CUSIP 68572M106
Holders (tracked)
9
Combined shares
1,095,181
Combined value
$4.55M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+4 vs previous quarter over the last 8.
SEC event timeline
11 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−23,827 shares · 2025Q4Position
- Two Sigma Investments opened position2026-02-17+86,552 shares · 2025Q4Position
- Steve Cohen (Point72) opened position2026-02-17+161,946 shares · 2025Q4Position
- T. Rowe Price trimmed2026-02-17−56,967 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−130,514 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−822 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−229,208 shares · 2025Q4Position
- AQR Capital Management opened position2025-11-14+17,112 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−35,687 shares · 2025Q3Position
- T. Rowe Price trimmed2025-11-14−16,757 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+211,108 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions2
- Steve Cohen (Point72)+161,946$672K
- Two Sigma Investments+86,552$359K
Added to0
—
Trimmed5
- Renaissance Technologies−229,208$951K
- Izzy Englander (Millennium Mgmt)−130,514$542K
- Ken Griffin (Citadel Advisors)−23,827$99K
- AQR Capital Management−822$3K
- T. Rowe Price−56,967$237
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q4 | 1 | $6.9M |
| 2023Q1 | 3 | $30.4M |
| 2023Q2 | 5 | $12.2M |
| 2023Q3 | 3 | $18.5M |
| 2023Q4 | 3 | $19.2M |
| 2024Q1 | 2 | $10.6M |
| 2024Q2 | 2 | $19.7M |
| 2024Q3 | 2 | $2.7M |
| 2024Q4 | 3 | $2.1M |
| 2025Q1 | 2 | $2.1M |
| 2025Q2 | 4 | $2.9M |
| 2025Q3 | 5 | $3.1M |
| 2025Q4 | 9 | $4.5M |
Who owns OBIO
9 super-investors · 2025Q4
Tracked stake
1.10M
shares
Combined value
$5M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Trim7
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | T. Rowe Price | 364.6K | $2M |
| 2 | Izzy Englander Millennium Mgmt | 243.5K | $1M |
| 3 | Steve Cohen Point72 | 161.9K | $672K |
| 4 | Renaissance Technologies | 151.3K | $628K |
| 5 | Two Sigma Investments | 86.6K | $359K |
| 6 | Ken Griffin Citadel Advisors | 30.2K | $125K |
| 7 | Ken Griffin Citadel Advisors | 24.2K | $100K |
| 8 | Ken Griffin Citadel Advisors | 16.6K | $69K |
| 9 | AQR Capital Management | 16.3K | $68K |
Recent moves
20 transactions
- +161,946 · 2025Q4
- −130,514 · 2025Q4
- +86,552 · 2025Q4
- −822 · 2025Q4
- −23,827 · 2025Q4
- TRIMT. Rowe Price−56,967 · 2025Q4
- −229,208 · 2025Q4
- +17,112 · 2025Q3
- −35,687 · 2025Q3
- TRIMT. Rowe Price−16,757 · 2025Q3
- +211,108 · 2025Q3
- +409,674 · 2025Q2
- TRIMT. Rowe Price−21,751 · 2025Q2
- +169,400 · 2025Q2
- −21,513 · 2025Q1
- TRIMT. Rowe Price−27,050 · 2025Q1
- +21,513 · 2024Q4
- TRIMT. Rowe Price−25,493 · 2024Q4
- TRIMT. Rowe Price−40,040 · 2024Q3
- TRIMT. Rowe Price−18,372 · 2024Q2
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