ORGANON & CO (OGN)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
Institutions report 218,612,808 shares against 262,609,433 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $434.0M | 32,056,866 | 0.01% | 8q | +1.1%+$4.6M |
| Pentwater Capital Management LP | $245.1M | 18,100,000 | 1.50% | new | NEW |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $204.9M | 15,132,118 | 0.01% | 2q | -30.7%-$90.9M |
| VANGUARD CAPITAL MANAGEMENT LLC | $161.3M | 11,909,865 | 0.00% | 2q | +1.5%+$2.3M |
| STATE STREET CORP | $130.8M | 9,659,371 | 0.00% | 21q | -3.0%-$4.0M |
| GOLDMAN SACHS GROUP INC | $70.4M | 5,199,002 | 0.01% | 21q | +223.9%+$48.7M |
| UBS Group AG | $65.8M | 4,856,529 | 0.01% | 21q | +39.9%+$18.8M |
| GEODE CAPITAL MANAGEMENT, LLC | $65.2M | 4,815,610 | 0.00% | 21q | +1.2%+$762.1K |
| Man Group plc | $56.6M | 4,180,500 | 0.09% | new | NEW |
| AQR Arbitrage LLC | $52.4M | 3,880,354 | 0.75% | new | NEW |
| PRIVATE MANAGEMENT GROUP INC | $50.7M | 3,742,161 | 1.33% | 21q | -14.4%-$8.6M |
| LSV ASSET MANAGEMENT | $50.6M | 3,737,036 | 0.09% | 21q | -48.5%-$47.7M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $46.8M | 3,457,262 | 0.01% | 21q | +2.8%+$1.3M |
| MILLENNIUM MANAGEMENT LLC | $46.6M | 3,442,430 | 0.02% | 21q | -49.2%-$45.2M |
| Balyasny Asset Management L.P. | $44.6M incl. $14.9M options CALL+PUT | 2,196,642 | 0.06% | 2q | +908.1%+$40.2M |
| DIMENSIONAL FUND ADVISORS LP | $44.2M | 3,266,826 | 0.01% | 21q | HELD |
| FIRST TRUST ADVISORS LP | $42.0M | 3,099,481 | 0.02% | 19q | -4.0%-$1.7M |
| Capula Management Ltd | $41.3M | 3,049,207 | 0.15% | new | NEW |
| NEXPOINT ASSET MANAGEMENT, L.P. | $40.8M | 3,009,630 | 2.72% | new | NEW |
| Magnetar Financial LLC | $38.0M | 2,810,019 | 0.35% | new | NEW |
| GLAZER CAPITAL, LLC | $37.2M incl. $29.0K options PUT | 2,745,000 | 0.91% | new | NEW |
| KAHN BROTHERS GROUP INC | $36.2M | 2,670,523 | 5.72% | 21q | -51.8%-$38.8M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $33.8M incl. $30.8M options CALL+PUT | 221,647 | 0.00% | 21q | -79.5%-$131.4M |
| WATER ISLAND CAPITAL LLC | $31.8M incl. $13.2M options PUT | 1,374,899 | 2.96% | new | NEW |
| Bank of New York Mellon Corp | $30.9M | 2,282,161 | 0.01% | 21q | +2.3%+$682.4K |
| MORGAN STANLEY | $29.8M | 2,202,199 | 0.00% | 21q | -33.1%-$14.8M |
| Kryger Capital LLC | $29.1M | 2,152,693 | 1.66% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $28.5M | 4,754,671 | 0.01% | 21q | +559.9%+$24.2M |
| Allianz Asset Management GmbH | $28.3M | 2,093,459 | 0.02% | 21q | +93.3%+$13.7M |
| NORTHERN TRUST CORP | $28.2M | 2,080,508 | 0.00% | 21q | +8.7%+$2.3M |
| Parallax Volatility Advisers, L.P. | $25.1M CALL+PUT | options only | 0.04% | 4q | OPTIONS |
| VANGUARD FIDUCIARY TRUST CO | $22.5M | 1,660,492 | 0.00% | 2q | +3.0%+$655.8K |
| Invesco Ltd. | $22.2M | 1,643,187 | 0.00% | 21q | -26.2%-$7.9M |
| Westchester Capital Management, LLC | $19.3M | 1,426,578 | 0.95% | new | NEW |
| TIG Advisors, LLC | $19.0M | 1,400,283 | 0.84% | new | NEW |
| ALPINE ASSOCIATES MANAGEMENT INC. | $18.2M | 1,345,233 | 1.14% | new | NEW |
| PRINCIPAL FINANCIAL GROUP INC | $17.1M | 1,266,614 | 0.01% | 21q | HELD |
| AQR CAPITAL MANAGEMENT LLC | $16.8M | 1,245,588 | 0.01% | 21q | -63.9%-$29.8M |
| FMR LLC | $16.1M | 1,187,549 | 0.00% | 21q | -53.6%-$18.6M |
| HSBC HOLDINGS PLC | $14.6M | 1,078,134 | 0.01% | 21q | +4706.9%+$14.3M |
| Gotham Asset Management, LLC | $14.0M | 1,032,313 | 0.03% | 21q | -17.9%-$3.0M |
| Cerity Partners LLC | $13.7M | 1,009,842 | 0.02% | 11q | -56.3%-$17.6M |
| Verition Fund Management LLC | $13.2M incl. $6.5M options CALL | 497,996 | 0.07% | new | NEW |
| GABELLI FUNDS LLC | $12.9M | 954,910 | 0.08% | new | NEW |
| Polar Asset Management Partners Inc. | $12.9M | 949,806 | 0.21% | new | NEW |
| GFS Advisors, LLC | $12.3M | 1,267? | 0.65% | new | |
| Public Sector Pension Investment Board | $12.2M | 902,195 | 0.03% | 21q | -3.0%-$377.8K |
| CITADEL ADVISORS LLC | $11.5M incl. $6.8M options CALL+PUT | 344,359 | 0.00% | 21q | -82.8%-$55.1M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $11.3M | 837,305 | 0.02% | new | NEW |
| MARSHALL WACE, LLP | $11.2M | 828,133 | 0.01% | 5q | -11.3%-$1.4M |
| Centiva Capital, LP | $11.2M incl. $3.7M options CALL+PUT | 554,800 | 0.10% | new | NEW |
| Groupe la Francaise | $10.5M | 775,382 | 0.13% | new | NEW |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | $10.1M | 743,270 | 0.03% | 2q | -46.0%-$8.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $10.0M | 742,009 | 0.00% | 21q | -4.7%-$499.6K |
| D. E. Shaw & Co., Inc. | $10.0M incl. $238.3K options CALL | 718,753 | 0.00% | 4q | -72.8%-$26.7M |
| BRANDES INVESTMENT PARTNERS, LP | $9.9M | 729,502 | 0.07% | 11q | +5.5%+$512.9K |
| TOKIO MARINE ASSET MANAGEMENT CO LTD | $9.5M | 704,100 | 0.30% | new | NEW |
| Sagefield Capital LP | $9.5M | 701,857 | 0.70% | new | NEW |
| Legal & General Group Plc | $9.1M | 669,375 | 0.00% | 21q | -1.3%-$117.4K |
| P SCHOENFELD ASSET MANAGEMENT LP | $9.0M | 667,400 | 3.70% | new | NEW |
| Absolute Gestao de Investimentos Ltda. | $9.0M | 665,230 | 0.91% | new | NEW |
| AMERIPRISE FINANCIAL INC | $9.0M | 663,233 | 0.00% | 21q | -12.1%-$1.2M |
| BANK OF AMERICA CORP /DE/ | $8.8M | 649,755 | 0.00% | 21q | -12.0%-$1.2M |
| CREDIT INDUSTRIEL ET COMMERCIAL | $7.9M | 584,944 | 0.51% | new | NEW |
| PICTON MAHONEY ASSET MANAGEMENT | $7.8M | 575,000 | 0.06% | 8q | +1045354.5%+$7.8M |
| Lombard Odier Asset Management (USA) Corp | $7.8M CALL+PUT | options only | 1.07% | 2q | OPTIONS |
| AMERICAN CENTURY COMPANIES INC | $7.7M | 567,310 | 0.00% | 20q | +18.7%+$1.2M |
| WELLS FARGO & COMPANY/MN | $7.5M | 554,832 | 0.00% | 21q | -20.8%-$2.0M |
| GABELLI & Co INVESTMENT ADVISERS, INC. | $7.4M | 548,700 | 1.08% | new | NEW |
| STATE OF WISCONSIN INVESTMENT BOARD | $7.3M | 538,388 | 0.01% | 21q | +255.1%+$5.2M |
| Swiss National Bank | $7.1M | 526,475 | 0.00% | 21q | +2.7%+$188.2K |
| WINTON GROUP Ltd | $6.9M | 509,862 | 0.22% | new | NEW |
| FIRST MANHATTAN CO. LLC. | $6.8M | 504,647 | 0.02% | 21q | -46.9%-$6.0M |
| New York Life Investment Management LLC | $6.8M | 503,117 | 0.05% | new | NEW |
| Schonfeld Strategic Advisors LLC | $6.8M PUT | options only | 0.02% | 5q | OPTIONS |
| RHUMBLINE ADVISERS | $6.7M | 496,563 | 0.01% | 21q | +1.0%+$69.6K |
| Nuveen, LLC | $6.6M | 486,400 | 0.00% | 6q | +3.7%+$236.5K |
| Alberta Investment Management Corp | $6.1M | 450,000 | 0.03% | new | NEW |
| Carmignac Gestion | $6.1M | 448,606 | 0.08% | new | NEW |
| Maven Securities LTD | $5.9M | 434,200 | 0.12% | new | NEW |
| Quantinno Capital Management LP | $5.7M | 421,790 | 0.01% | 9q | +59.2%+$2.1M |
| FRANKLIN RESOURCES INC | $5.5M | 408,184 | 0.00% | 21q | +44.3%+$1.7M |
| Vestcor Inc | $5.5M | 406,752 | 0.14% | 5q | +871.0%+$4.9M |
| LMR Partners LLP | $5.4M | 396,842 | 0.02% | 2q | +2903.4%+$5.2M |
| CITIGROUP INC | $5.3M | 392,268 | 0.00% | 21q | -34.3%-$2.8M |
| First Trust Capital Management L.P. | $5.3M | 390,939 | 0.31% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $5.3M | 390,745 | 0.00% | 7q | +168.7%+$3.3M |
| Squarepoint Ops LLC | $5.3M | 390,232 | 0.01% | 5q | -53.1%-$6.0M |
| NORGES BANK | $5.1M | 374,251 | 0.00% | 19q | +41.3%+$1.5M |
| READYSTATE ASSET MANAGEMENT LP | $4.8M | 351,863 | 0.16% | new | NEW |
| JPMORGAN CHASE & CO | $4.5M | 318,314 | 0.00% | 21q | +6.7%+$281.2K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $4.3M | 315,858 | 0.01% | 7q | -39.7%-$2.8M |
| JANE STREET GROUP, LLC | $4.2M CALL+PUT | options only | 0.00% | 14q | OPTIONS |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $4.1M | 300,215 | 0.00% | 21q | -8.2%-$363.7K |
| SIMPLEX TRADING, LLC | $4.0M incl. $2.0M options CALL+PUT | 145,377 | 0.00% | new | NEW |
| IMC-Chicago, LLC | $3.9M CALL+PUT | options only | 0.00% | 10q | OPTIONS |
| Tidal Investments LLC | $3.9M | 285,099 | 0.01% | 15q | +18.1%+$591.5K |
| CM Management, LLC | $3.7M | 275,000 | 2.36% | 13q | -31.2%-$1.7M |
| SECTOR GAMMA AS | $3.7M | 270,781 | 0.80% | 4q | -28.0%-$1.4M |
| WOLVERINE ASSET MANAGEMENT LLC | $3.5M incl. $732.5K options PUT | 207,915 | 0.03% | 15q | +1202.7%+$3.3M |
Showing the largest 100 of 649 reported holders. The count of 647 above leaves out 2 positions whose reported value failed our price check; they are listed here as filed.
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-05 | Drinane Juliana Papa | Head of Mfg & Supply | Sold | 14,761 | $200.3K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 177 | $35.1M | 2,559,526 | 16 | 29 | 41 | 0.0% |
| Q2 2026 | 647 | $3.1B | 218,612,808 | 119 | 114 | 192 | 4.5% |
| Q1 2026 | 611 | $1.2B | 199,795,795 | 68 | 127 | 198 | 3.4% |
| Q4 2025 | 633 | $1.5B | 198,893,295 | 60 | 131 | 224 | 3.4% |
| Q3 2025 | 672 | $2.2B | 200,508,139 | 64 | 154 | 224 | 3.1% |
| Q2 2025 | 694 | $2.1B | 214,120,149 | 93 | 171 | 228 | 2.5% |
| Q1 2025 | 718 | $3.1B | 202,946,079 | 75 | 216 | 216 | 1.8% |
| Q4 2024 | 738 | $3.1B | 205,731,531 | 67 | 199 | 236 | 1.5% |
| Q3 2024 | 725 | $3.9B | 199,893,085 | 86 | 201 | 231 | 1.5% |
| Q2 2024 | 728 | $4.2B | 199,456,149 | 76 | 194 | 250 | 1.5% |
| Q1 2024 | 721 | $4.1B | 210,129,852 | 80 | 220 | 244 | 2.7% |
| Q4 2023 | 712 | $3.0B | 205,009,441 | 76 | 183 | 278 | 2.8% |
| Q3 2023 | 729 | $3.9B | 218,561,251 | 59 | 213 | 267 | 1.9% |
| Q2 2023 | 723 | $4.3B | 203,522,751 | 49 | 206 | 280 | 1.0% |
| Q1 2023 | 762 | $4.9B | 207,646,245 | 67 | 227 | 268 | 0.8% |
| Q4 2022 | 821 | $5.8B | 206,688,565 | 112 | 187 | 351 | 0.8% |
| Q3 2022 | 735 | $15.2B | 646,689,675 | 54 | 218 | 277 | 0.2% |
| Q2 2022 | 822 | $22.8B | 674,848,046 | 117 | 185 | 331 | 0.2% |
| Q1 2022 | 795 | $22.2B | 633,702,006 | 83 | 195 | 358 | 0.3% |
| Q4 2021 | 871 | $20.6B | 674,386,333 | 67 | 195 | 394 | 0.4% |
| Q3 2021 | 905 | $21.2B | 644,051,209 | 129 | 200 | 435 | 0.4% |
| Q2 2021 | 963 | $40.0B | 1,320,859,345 | 960 | 0 | 0 | 0.1% |
| Q1 2021 | 1 | $103.0K | 3,400 | 0 | 0 | 0 | 0.0% |
| Q4 2020 | 1 | $103.0K | 3,400 | 0 | 0 | 0 | 0.0% |
| Q3 2020 | 1 | $103.0K | 3,400 | 0 | 0 | 0 | 0.0% |
| Q2 2020 | 2 | $104.0K | 3,440 | 0 | 0 | 0 | 0.0% |
| Q1 2020 | 1 | $103.0K | 3,400 | 0 | 0 | 0 | 0.0% |
| Q4 2019 | 1 | $103.0K | 3,400 | 0 | 0 | 0 | 0.0% |
| Q3 2019 | 1 | $103.0K | 3,400 | 0 | 0 | 0 | 0.0% |
| Q2 2019 | 1 | $103.0K | 3,400 | 0 | 0 | 0 | 0.0% |
| Q1 2019 | 1 | $103.0K | 3,400 | 1 | 0 | 0 | 0.0% |
