Organon OGN Institutional Ownership

NYSE OGN

$13.76 +0.01 (+0.04%)

As of: Oct 22, 2026 · 10:29 AM EDT

Institutions by Trading Activity

631 Institutions

Increased 244 38.7%

Unchanged 201 31.9%

Reduced 186 29.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

84.34%

▲+8.25 pp QoQ

Shares Held by Institutions

221.49Mn

of 262.61Mn outstanding

▲+10.82% QoQ

Shares Outstanding

262.61Mn

41.12Mn held outside 13F filers

Institutional Investors

631

filed 13F for Jun 2026

▲+26 vs prior quarter

Net Shares Added (QoQ)

+21.63Mn

accumulated since last quarter

Value of Holdings

$3.05Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Organon & Co. (NYSE:OGN) appeared in the 13F filings of 631 institutional investors for the quarter ended June 30, 2026.

These investors held 84.34% of outstanding shares in Q2 2026, up from 76.09% the quarter before.
Total shares held in OGN rose 10.82% from Q1 2026; the number of holders fell 8.28% from Q2 2025.
Of these 631 holders, 244 added to their positions, 186 reduced their stakes and 201 left their positions unchanged.
Altogether, institutional holders owned 221.49Mn OGN shares at the end of Q2 2026, up 21.63Mn from the prior quarter and up 20.7Mn from a year earlier.
BlackRock, Inc. was the top holder of Organon as of June 30, 2026, with 32.06Mn shares, or 12.21% of shares outstanding.
The biggest increases in OGN positions during Q2 2026 came from AllianceBernstein L.P. (+4.03Mn shares), Goldman Sachs Group Inc (+3.59Mn shares), Balyasny Asset Management L.P. (+1.98Mn shares), UBS Group AG (+1.38Mn shares) and HSBC Holdings PLC (+1.06Mn shares).
Holders that trimmed the most shares of Organon in Q2 2026 while keeping a position were Vanguard Portfolio Management LLC (-6.71Mn shares), LSV Asset Management (-3.52Mn shares), Millennium Management LLC (-3.34Mn shares), Two Sigma Investments, LP (-2.9Mn shares) and AQR Capital Management LLC (-2.21Mn shares).
Business Quant data shows the 10 biggest positions in Organon as of Q2 2026 were held by BlackRock, Inc. (32.06Mn shares), Pentwater Capital Management LP (18.1Mn shares), Vanguard Portfolio Management LLC (15.13Mn shares), Vanguard Capital Management LLC (11.91Mn shares), State Street Corp (9.66Mn shares), Kahn Brothers Group Inc (5.54Mn shares), Goldman Sachs Group Inc (5.2Mn shares), UBS Group AG (4.86Mn shares), Geode Capital Management, LLC (4.82Mn shares) and AllianceBernstein L.P. (4.75Mn shares).

Form 13F Holdings

631 Institutional Holders

Report period 30 Jun, 2026

Total shares held 221.49Mn

Of outstanding 84.34%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	32,056,866	12.21%	▲339,838	+1.07%	$434.05Mn
2	Pentwater Capital Management LP	0001425851	18,100,000	6.89%	▲18,100,000	0.00%	$245.07Mn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	15,132,118	5.76%	▼6,713,918	-30.73%	$204.89Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	11,909,865	4.54%	▲172,847	+1.47%	$161.26Mn
5	State Street Corp	0000093751	9,659,371	3.68%	▼297,403	-2.99%	$130.79Mn
6	KAHN BROTHERS GROUP INC	0001039565	5,536,993	2.11%	0	0.00%	$33.17Mn
7	Goldman Sachs Group Inc	0000886982	5,199,002	1.98%	▲3,593,677	+223.86%	$70.39Mn
8	UBS Group AG	0001610520	4,856,529	1.85%	▲1,384,950	+39.89%	$65.76Mn
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	4,815,610	1.83%	▲56,273	+1.18%	$65.22Mn
10	ALLIANCEBERNSTEIN L.P.	0001109448	4,754,671	1.81%	▲4,034,159	+559.90%	$28.48Mn
11	Man Group plc	0001637460	4,180,500	1.59%	▲4,180,500	0.00%	$56.60Mn
12	AQR Arbitrage LLC	0001167456	3,880,354	1.48%	▲3,880,354	0.00%	$52.38Mn
13	PRIVATE MANAGEMENT GROUP INC	0001142031	3,742,161	1.42%	▼631,947	-14.45%	$50.67Mn
14	LSV ASSET MANAGEMENT	0001050470	3,737,036	1.42%	▼3,522,694	-48.52%	$50.60K
15	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	3,457,262	1.32%	▲94,913	+2.82%	$46.81Mn
16	MILLENNIUM MANAGEMENT LLC	0001273087	3,442,430	1.31%	▼3,339,105	-49.24%	$46.61Mn
17	DIMENSIONAL FUND ADVISORS LP	0000354204	3,266,826	1.24%	▲1,546	+0.05%	$44.23Mn
18	FIRST TRUST ADVISORS LP	0001125816	3,099,481	1.18%	▼127,839	-3.96%	$41.97Mn
19	Capula Management Ltd	0001557017	3,049,207	1.16%	▲3,049,207	0.00%	$41.29Mn
20	NEXPOINT ASSET MANAGEMENT, L.P.	0001469877	3,009,630	1.15%	▲3,009,630	0.00%	$40.75Mn

Showing 1 to 20 of 631 holders