Ticker · CUSIP 681919106
Holders (tracked)
17
Combined shares
25,999,277
Combined value
$2.06B
Last close
$78.76
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is -0.7% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
30 events
- +5,300 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) added2026-02-17+3,945,814 shares · 2025Q413F
- D.E. Shaw & Co. exited2026-02-17−79,726 shares · 2025Q413F
- AQR Capital Management added2026-02-17+2,412,077 shares · 2025Q413F
- Two Sigma Investments exited2026-02-17−143,910 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+901,956 shares · 2025Q413F
- +61,340 shares · 2025Q413F
- T. Rowe Price added2026-02-17+140,670 shares · 2025Q413F
- Wellington Management added2026-02-17+4,364,797 shares · 2025Q413F
- Jeremy Grantham (GMO) added2026-02-17+168,646 shares · 2025Q413F
- Ray Dalio (Bridgewater Associates) added2026-02-13+57,691 shares · 2025Q413F
- +1,088,333 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−1,053,215 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+1,737,069 shares · 2025Q413F
- Mario Gabelli (GAMCO) added2026-02-05+211,126 shares · 2025Q413F
- First Eagle Investment Management added2026-02-04+33,557 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−544,353 shares · 2025Q313F
- Steve Cohen (Point72) exited2025-11-14−1,489,128 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+26,748 shares · 2025Q313F
- D.E. Shaw & Co. trimmed2025-11-14−209,251 shares · 2025Q313F
- AQR Capital Management added2025-11-14+703,285 shares · 2025Q313F
- T. Rowe Price trimmed2025-11-14−7,991 shares · 2025Q313F
- Wellington Management trimmed2025-11-14−3,980,918 shares · 2025Q313F
- Jeremy Grantham (GMO) trimmed2025-11-13−247,312 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−123,092 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−107,500 shares · 2025Q313F
- Ray Dalio (Bridgewater Associates) added2025-11-13+286,639 shares · 2025Q313F
- +6,318,477 shares · 2025Q313F
- Mario Gabelli (GAMCO) trimmed2025-11-12−260 shares · 2025Q313F
- Norges Bank (Norway SWF) added2025-11-12+138,951 shares · 2024Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of OMC…
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 | $8.59 | +816.9% | $36.7M |
| Renaissance Technologies | 2016Q2 | $76.27 | +3.3% | $9.2M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $76.37 | +3.1% | $417K |
| John Rogers (Ariel Investments) | 2016Q1 | $80.47 | -2.1% | $85.7M |
| Mario Gabelli (GAMCO) | 2025Q2 | $80.62 | -2.3% | $16.9M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $80.73 | -2.4% | $333.8M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $80.73 | -2.4% | $333.8M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $80.73 | -2.4% | $333.8M |
| Bill Nygren (Harris / Oakmark) | 2025Q4 | $80.75 | -2.5% | $4.8M |
| Jeremy Grantham (GMO) | 2016Q1 | $80.99 | -2.8% | $22.9M |
| Ray Dalio (Bridgewater Associates) | 2020Q1 | $81.01 | -2.8% | $64.2M |
| Izzy Englander (Millennium Mgmt) | 2016Q4 | $81.07 | -2.8% | $929K |
| Izzy Englander (Millennium Mgmt) | 2016Q4 | $81.07 | -2.8% | $929K |
| AQR Capital Management | 2016Q1 | $81.13 | -2.9% | $291.9M |
| Wellington Management | 2016Q1 | $81.41 | -3.3% | $409.5M |
| Norges Bank (Norway SWF) | 2016Q1 | $81.50 | -3.4% | $136.8M |
| First Eagle Investment Management | 2016Q1 | $81.75 | -3.7% | $500.3M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions4
- Norges Bank (Norway SWF)+1,737,069$140.3M
- John Rogers (Ariel Investments)+1,088,333$87.9M
- Bill Nygren (Harris / Oakmark)+61,340$5.0M
- Paul Tudor Jones (Tudor Investment)+5,300$428K
Added to9
- Wellington Management+4,364,797$352.5M
- Ken Griffin (Citadel Advisors)+3,945,814$318.6M
- AQR Capital Management+2,412,077$194.8M
- Izzy Englander (Millennium Mgmt)+901,956$72.8M
- Mario Gabelli (GAMCO)+211,126$17.0M
- Jeremy Grantham (GMO)+168,646$13.6M
- Ray Dalio (Bridgewater Associates)+57,691$4.7M
- First Eagle Investment Management+33,557$2.7M
- T. Rowe Price+140,670$11K
Trimmed1
- Renaissance Technologies−1,053,215$85.0M
Exited2
- Two Sigma Investments−143,910$11.7M
- D.E. Shaw & Co.−79,726$6.5M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 13 | $18.92B |
| 2022Q2 | 13 | $5.19B |
| 2022Q3 | 13 | $8.5M |
| 2022Q4 | 14 | $2.36B |
| 2023Q1 | 14 | $2.55B |
| 2023Q2 | 17 | $2.75B |
| 2023Q3 | 14 | $1.67B |
| 2023Q4 | 12 | $2.03B |
| 2024Q1 | 14 | $3.25B |
| 2024Q2 | 13 | $3.12B |
| 2024Q3 | 13 | $1.24B |
| 2024Q4 | 11 | $147.3M |
| 2025Q1 | 15 | $756.7M |
| 2025Q2 | 17 | $852.1M |
| 2025Q3 | 17 | $992.1M |
| 2025Q4 | 17 | $2.06B |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2026-03-13 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-04-08 | Rob Bresnahan | Sell | $1K – $15K | PDF ↗ |
Who owns OMC
17 super-investors · 2025Q4
Tracked stake
26.00M
shares
Combined value
$2.06B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added12Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | First Eagle Investment Management | 6.35M | $513M |
| 2 | Wellington Management | 5.20M | $420M |
| 3 | Ken Griffin Citadel Advisors | 4.24M | $342M |
| 4 | AQR Capital Management | 3.71M | $299M |
| 5 | Norges Bank Norway SWF | 1.74M | $140M |
| 6 | Izzy Englander Millennium Mgmt | 1.62M | $131M |
| 7 | John Rogers Ariel Investments | 1.09M | $88M |
| 8 | Ray Dalio Bridgewater Associates | 815.1K | $66M |
| 9 | Jeremy Grantham GMO | 290.2K | $23M |
| 10 | Mario Gabelli GAMCO | 214.2K | $17M |
| 11 | Renaissance Technologies | 116.2K | $9M |
| 12 | Bill Nygren Harris / Oakmark | 61.3K | $5M |
| 13 | Ken Griffin Citadel Advisors | 41.5K | $3M |
| 14 | Ken Griffin Citadel Advisors | 34.3K | $3M |
| 15 | Izzy Englander Millennium Mgmt | 11.8K | $953K |
| 16 | Paul Tudor Jones Tudor Investment | 5.3K | $428K |
| 17 | T. Rowe Price | 465.9K | $38K |
Recent moves
20 transactions
- +5,300 · 2025Q4
- SOLDD.E. Shaw & Co.−79,726 · 2025Q4
- +168,646 · 2025Q4
- +2,412,077 · 2025Q4
- +901,956 · 2025Q4
- +3,945,814 · 2025Q4
- +140,670 · 2025Q4
- +61,340 · 2025Q4
- +4,364,797 · 2025Q4
- −143,910 · 2025Q4
- +57,691 · 2025Q4
- +1,088,333 · 2025Q4
- −1,053,215 · 2025Q4
- +1,737,069 · 2025Q4
- +211,126 · 2025Q4
- +33,557 · 2025Q4
- −544,353 · 2025Q3
- −1,489,128 · 2025Q3
- +26,748 · 2025Q3
- TRIMD.E. Shaw & Co.−209,251 · 2025Q3
Embed this chart
Paste this iframe anywhere to embed the live OMC chart.
<iframe src="https://openstocks.me/embed/stock/OMC" width="100%" height="480" frameborder="0" loading="lazy" title="OMC chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>