Ticker · CUSIP 680665205
Holders (tracked)
14
Combined shares
4,118,864
Combined value
$84.05M
Last close
$27.98
Quarter
2025Q4
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
Price is +37.1% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
21 events
- +164,139 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) added2026-02-17+589,156 shares · 2025Q413F
- D.E. Shaw & Co. opened position2026-02-17+228,637 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−1,195,169 shares · 2025Q413F
- Two Sigma Investments exited2026-02-17−215,283 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−2,451,572 shares · 2025Q413F
- Steve Cohen (Point72) opened position2026-02-17+1,249,311 shares · 2025Q413F
- T. Rowe Price added2026-02-17+4,153 shares · 2025Q413F
- −5,814 shares · 2025Q413F
- Renaissance Technologies exited2026-02-12−73,000 shares · 2025Q413F
- Mario Gabelli (GAMCO) added2026-02-05+7,964 shares · 2025Q413F
- Steve Cohen (Point72) exited2025-11-14−87,719 shares · 2025Q313F
- Two Sigma Investments trimmed2025-11-14−261,071 shares · 2025Q313F
- AQR Capital Management added2025-11-14+807,846 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) added2025-11-14+2,272,877 shares · 2025Q313F
- T. Rowe Price added2025-11-14+6,128 shares · 2025Q313F
- +183,320 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−396,800 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−1,385,917 shares · 2025Q313F
- Norges Bank (Norway SWF) trimmed2025-11-12−24,748 shares · 2024Q313F
- Mario Gabelli (GAMCO) trimmed2025-11-12−1,800 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of OLN…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| T. Rowe Price | 2016Q1 | $1.44 | +1843.4% | $2.3M |
| Mario Gabelli (GAMCO) | 2016Q1 | $17.91 | +56.2% | $5.0M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $21.20 | +32.0% | $5.1M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $21.20 | +32.0% | $5.1M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $21.20 | +32.0% | $5.1M |
| Paul Tudor Jones (Tudor Investment) | 2017Q2 | $21.30 | +31.4% | $4.6M |
| Paul Tudor Jones (Tudor Investment) | 2017Q2 | $21.30 | +31.4% | $4.6M |
| Steve Cohen (Point72) | 2016Q1 | $21.44 | +30.5% | $537K |
| Steve Cohen (Point72) | 2016Q1 | $21.44 | +30.5% | $537K |
| D.E. Shaw & Co. | 2016Q1 | $21.59 | +29.6% | $4.2M |
| D.E. Shaw & Co. | 2016Q1 | $21.59 | +29.6% | $4.2M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $25.75 | +8.7% | $983K |
| Ray Dalio (Bridgewater Associates) | 2019Q4 | $31.76 | -11.9% | $5.0M |
| AQR Capital Management | 2017Q1 | $32.73 | -14.5% | $17.2M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions3
- Steve Cohen (Point72)+1,249,311$26.0M
- D.E. Shaw & Co.+228,637$4.8M
- Paul Tudor Jones (Tudor Investment)+164,139$3.4M
Added to3
- Ken Griffin (Citadel Advisors)+589,156$12.3M
- Mario Gabelli (GAMCO)+7,964$166K
- T. Rowe Price+4,153$87
Trimmed3
- Izzy Englander (Millennium Mgmt)−2,451,572$51.1M
- AQR Capital Management−1,195,169$24.9M
- Ray Dalio (Bridgewater Associates)−5,814$121K
Exited2
- Two Sigma Investments−215,283$5.4M
- Renaissance Technologies−73,000$1.8M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 16 | $72.79B |
| 2022Q2 | 16 | $61.20B |
| 2022Q3 | 16 | $57.4M |
| 2022Q4 | 17 | $978.8M |
| 2023Q1 | 18 | $1.00B |
| 2023Q2 | 18 | $820.6M |
| 2023Q3 | 17 | $764.6M |
| 2023Q4 | 19 | $928.3M |
| 2024Q1 | 18 | $1.02B |
| 2024Q2 | 19 | $865.7M |
| 2024Q3 | 17 | $353.6M |
| 2024Q4 | 16 | $261.9M |
| 2025Q1 | 14 | $170.3M |
| 2025Q2 | 15 | $97.1M |
| 2025Q3 | 12 | $140.1M |
| 2025Q4 | 14 | $84.0M |
Who owns OLN
14 super-investors · 2025Q4
Tracked stake
4.12M
shares
Combined value
$84M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New6Added5Trim3
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Steve Cohen Point72 | 1.25M | $26M |
| 2 | Ken Griffin Citadel Advisors | 827.4K | $17M |
| 3 | AQR Capital Management | 616.4K | $13M |
| 4 | D.E. Shaw & Co. | 228.6K | $5M |
| 5 | Ken Griffin Citadel Advisors | 193.8K | $4M |
| 6 | Ken Griffin Citadel Advisors | 182.7K | $4M |
| 7 | Mario Gabelli GAMCO | 178.9K | $4M |
| 8 | Ray Dalio Bridgewater Associates | 177.5K | $4M |
| 9 | Paul Tudor Jones Tudor Investment | 164.1K | $3M |
| 10 | D.E. Shaw & Co. | 150.5K | $3M |
| 11 | Izzy Englander Millennium Mgmt | 35.1K | $732K |
| 12 | Steve Cohen Point72 | 19.2K | $400K |
| 13 | Paul Tudor Jones Tudor Investment | 11.3K | $235K |
| 14 | T. Rowe Price | 84.0K | $2K |
Recent moves
20 transactions
- +4,153 · 2025Q4
- −2,451,572 · 2025Q4
- +164,139 · 2025Q4
- −1,195,169 · 2025Q4
- +228,637 · 2025Q4
- +1,249,311 · 2025Q4
- +589,156 · 2025Q4
- −215,283 · 2025Q4
- −5,814 · 2025Q4
- −73,000 · 2025Q4
- +7,964 · 2025Q4
- −87,719 · 2025Q3
- +6,128 · 2025Q3
- +2,272,877 · 2025Q3
- −261,071 · 2025Q3
- +807,846 · 2025Q3
- +183,320 · 2025Q3
- −396,800 · 2025Q3
- −1,385,917 · 2025Q3
- −24,748 · 2024Q3
Embed this chart
Paste this iframe anywhere to embed the live OLN chart.
<iframe src="https://openstocks.me/embed/stock/OLN" width="100%" height="480" frameborder="0" loading="lazy" title="OLN chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>