$OGN

$13.75 +$0.01 (0.07%) Close

$OGN Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 262.6M shares outstanding

Who owns OGN?

By type of holder

Institutions 83.2% Insiders 0.5% Everyone else 16.4%

Concentration Top 10 holders own 40.7%

BlackRock, Inc. 12.2% · Vanguard Portfolio Management LLC 5.8%

Institutional ownership

83.2%

+7.1 pts vs last qtr

Institutional holders

631

+24 vs last qtr

Net shares bought

+18.6M

by institutions in Q2 2026

New / sold out

124 / 100

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Pentwater Capital Management LP NEW +18.1M
Man Group plc NEW +4.2M

Biggest sellers in Q2 2026

Vanguard Portfolio Management LLC −6.7M
Canada Pension Plan Investment Board SOLD OUT −5.0M

Who is planning to sell?

Notices of proposed sale, last 12 months

$553K

2 notices from 2 people

Shares covered

41.2K

0.02% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Holzbaur Lynette Affiliate $353K
Juliana P Drinane Officer $200K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2019–FY2025

+2.9%

+0.47% a year

Each share's claim on the business

−2.8%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $498M

over 7 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years62% 3–5 years4% 1–3 years4% Under 1 year30%

Quarterly turnover

34.0%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting OGN on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	32.1M	12.21%	+339.8K (+1.1%)	≤2021	0.0%
Shares held by quarter Peak holding32.8M (Q4'24) Change over 8 quarters−81.4K Share of the company12.210% BlackRock, Inc.'s full portfolio →
VP Vanguard Portfolio Management LLC	15.1M	5.76%	−6.7M (−30.7%)	≤2021	0.0%
Shares held by quarter Peak holding21.8M (Q1'26) Change over 8 quarters+15.1M Share of the company5.760% Vanguard Portfolio Management LLC's full portfolio →

BlackRock, Inc.

32.1M

% of company

12.21%

Change vs last qtr

+339.8K (+1.1%)

Held since

≤2021

Vanguard Portfolio Management LLC

15.1M

% of company

5.76%

Change vs last qtr

−6.7M (−30.7%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Organon & Co., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting OGN on Form N-PORT; together they hold 35.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$214M	15.8M	6.02%	0.19%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$113M	8.3M	3.17%	0.00%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$214M

% of company

6.02%

% of the fund

0.19%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$113M

% of company

3.17%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Organon & Co. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
AK Ali Kevin Insider	282.7K	0.11%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.110% Ali Kevin's insider activity →
WM Walsh Matthew M Insider	212.7K	0.08%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.080% Walsh Matthew M's insider activity →

Ali Kevin

Insider

282.7K

% of company

0.11%

Change vs last qtr

—

Held since

—

Walsh Matthew M

Insider

212.7K

% of company

0.08%

Change vs last qtr

—

Held since

—

11 more holders behind a free account

See every insider and 5%+ holder of Organon & Co..

Comments