Organon & Co. (OGN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

1,141,077Shares held by institutions

$6,509,844Value of institutional holdings

77.77%Institutional ownership %

9.26%Shares Changed QoQ

684No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Organon & Co. (NYSE:OGN) has 613 institutional investors that have filed 13F reports for the period ending December 2025.

Their combined ownership stood at 75.7% of outstanding shares in December 2025, down from 76.7% in September 2025.
They increased total shares held in OGN by 6.22% quarter over quarter, and investors in Organon decreased 15.68% from a year ago.
During the quarter, 228 of these 613 funds increased positions in OGN, 223 reduced exposure, and 162 held steady.
The aggregate institutional position in Organon amounted to 197.32Mn shares as of December 2025, up by 11.55Mn shares quarter on quarter, and down 15.05Mn shares year over year.
VANGUARD GROUP INC holds the largest position in OGN at 36.92Mn shares as of December 31, 2025, or 14.16% of shares outstanding.
The most significant purchases of OGN for the quarter ending December 2025 came from AQR CAPITAL MANAGEMENT LLC (4.39Mn), Sio Capital Management, LLC (3.42Mn), D. E. Shaw & Co., Inc. (2.9Mn), JANE STREET GROUP, LLC (1.71Mn), CITADEL ADVISORS LLC (1.65Mn).
Leading sellers of Organon shares for the quarter ending December 2025 were MILLENNIUM MANAGEMENT LLC (4.07Mn), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (2.62Mn), Russell Investments Group, Ltd. (1.83Mn), Bank of New York Mellon Corp (1.31Mn), Morgan Stanley (1.18Mn).
Organon's 10 largest shareholders as of December 2025 include VANGUARD GROUP INC (36.92Mn), BlackRock, Inc. (30.97Mn), State Street Corp (9.6Mn), AQR CAPITAL MANAGEMENT LLC (8.57Mn), LSV ASSET MANAGEMENT (7.47Mn), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (6.88Mn), GEODE CAPITAL MANAGEMENT, LLC (4.6Mn), PRIVATE MANAGEMENT GROUP INC (4.35Mn), UBS Group AG (4.3Mn), KAHN BROTHERS GROUP INC (3.63Mn) per Business Quant data.

614 Institutional Holders

1,141,077 Total Shares Held

Rows:

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Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	107,330	0.35%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	987,979	2.75%	$0.00
UBS Group AG	31 Dec, 2025	1,527,492	55.19%	$0.00
Barclays Plc	31 Dec, 2025	-181,033	-73.31%	$0.00
State Street Corp	31 Dec, 2025	262,185	2.81%	$0.00
Walleye Capital LLC	31 Dec, 2025	1,432,903	2,730.59%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	26,320	134.42%	$0.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	4,394,814	105.24%	$0.00
M&G Plc	31 Dec, 2025	49,482	5.25%	$0.00
PEAK6 LLC	31 Dec, 2025	26,758	787.46%	$0.00
LSV ASSET MANAGEMENT	31 Dec, 2025	-362,111	-4.62%	$0.00
Point72 Asset Management, L.P.	31 Dec, 2025	655,731	0.00%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	10,133	68.52%	$0.00
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	31 Dec, 2025	-2,619,936	-27.57%	$0.00
Universal- Beteiligungs- und Servicegesellschaft mbH	31 Dec, 2025	111,941	27.07%	$0.00
Nalls Sherbakoff Group, LLC	31 Dec, 2025	28	24.78%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	-215,105	-4.47%	$0.00
READYSTATE ASSET MANAGEMENT LP	31 Dec, 2025	-386,899	-42.91%	$0.00
PRIVATE MANAGEMENT GROUP INC	31 Dec, 2025	1,204,979	38.35%	$0.00
Douglas Lane & Associates, LLC	31 Dec, 2025	41,869	9.43%	$0.00

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