Ticker · CUSIP 68622V106

OGN

ORGANON & CO

Healthcare·Drug Manufacturers - General

···Share

Holders (tracked)

Combined shares

19,996,350

Combined value

$143.20M

Last close

$9.76

Quarter

2025Q4

Price is +36.3% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$9.76-1.25 (-11.38%)H $13.03 · L $5.70 · Avg Vol 5.4M

Tracked holders · last 8 quarters

+1 vs previous quarter over the last 8.

SEC event timeline

23 events

AQR Capital Management added2026-02-17
+4,394,814 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+1,529,117 shares · 2025Q4
Position
Jeremy Grantham (GMO) trimmed2026-02-17
−46,386 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+2,895,864 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+1,646,734 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−4,066,587 shares · 2025Q4
Position
T. Rowe Price trimmed2026-02-17
−40,728 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−5,053 shares · 2025Q4
Position
Steve Cohen (Point72) opened position2026-02-17
+655,731 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) added2026-02-13
+240,538 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+264,857 shares · 2025Q4
Position
Mario Gabelli (GAMCO) exited2026-02-05
−11,630 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2025-11-14
−4,562,932 shares · 2025Q3
Position
Two Sigma Investments added2025-11-14
+484,959 shares · 2025Q3
Position
D.E. Shaw & Co. opened position2025-11-14
+490,860 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+13,860 shares · 2025Q3
Position
Wellington Management opened position2025-11-14
+134,428 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+921,260 shares · 2025Q3
Position
Jeremy Grantham (GMO) trimmed2025-11-13
−31,088 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−2,043,153 shares · 2025Q3
Position
Ray Dalio (Bridgewater Associates) added2025-11-13
+480,251 shares · 2025Q3
Position
Mario Gabelli (GAMCO) trimmed2025-11-12
−668 shares · 2025Q3
Position
Norges Bank (Norway SWF) added2025-11-12
+97,438 shares · 2024Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for OGN →

Follow-the-investor returns

If you'd copied each holder of OGN…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Ken Griffin (Citadel Advisors)	2021Q2	$7.56	+29.0%	$4.0M
Ken Griffin (Citadel Advisors)	2021Q2	$7.56	+29.0%	$4.0M
Ken Griffin (Citadel Advisors)	2021Q2	$7.56	+29.0%	$4.0M
Izzy Englander (Millennium Mgmt)	2021Q2	$7.66	+27.4%	$4.5M
D.E. Shaw & Co.	2021Q2	$7.73	+26.3%	$172K
D.E. Shaw & Co.	2021Q2	$7.73	+26.3%	$172K
Two Sigma Investments	2021Q2	$8.22	+18.8%	$21.2M
Ray Dalio (Bridgewater Associates)	2024Q3	$10.02	-2.6%	$8.9M
AQR Capital Management	2021Q2	$10.69	-8.7%	$83.7M
Wellington Management	2021Q2	$13.73	-28.9%	$1.3M
Jeremy Grantham (GMO)	2021Q2	$14.35	-32.0%	$4.4M
Steve Cohen (Point72)	2023Q1	$14.45	-32.4%	$294K
Steve Cohen (Point72)	2023Q1	$14.45	-32.4%	$294K
Norges Bank (Norway SWF)	2021Q2	$22.36	-56.3%	$2.6M
T. Rowe Price	2021Q2	$24.94	-60.9%	$1.6M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions2

Steve Cohen (Point72)
+655,731
$4.7M
Norges Bank (Norway SWF)
+264,857
$1.9M

Added to5

AQR Capital Management
+4,394,814
$31.4M
D.E. Shaw & Co.
+2,895,864
$20.8M
Ken Griffin (Citadel Advisors)
+1,646,734
$11.8M
Two Sigma Investments
+1,529,117
$11.0M
Ray Dalio (Bridgewater Associates)
+240,538
$1.7M

Trimmed4

Izzy Englander (Millennium Mgmt)
−4,066,587
$29.2M
Jeremy Grantham (GMO)
−46,386
$333K
Wellington Management
−5,053
$36K
T. Rowe Price
−40,728
$292

Exited1

Mario Gabelli (GAMCO)
−11,630
$124K

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	16	27,348,154	$53.48B	—
2022Q2	13	23,110,659	$41.86B	-3
2022Q3	13	22,319,931	$522.3M	—
2022Q4	14	23,316,444	$651.2M	+1
2023Q1	14	21,674,118	$509.6M	—
2023Q2	13	22,924,221	$477.1M	-1
2023Q3	13	23,126,409	$401.3M	—
2023Q4	13	47,170,565	$680.2M	—
2024Q1	12	44,672,039	$839.6M	-1
2024Q2	13	40,338,718	$835.0M	+1
2024Q3	13	8,242,222	$157.7M	—
2024Q4	10	4,400,078	$65.4M	-3
2025Q1	10	7,842,146	$116.1M	—
2025Q2	13	22,297,972	$215.8M	+3
2025Q3	14	12,570,279	$133.3M	+1
2025Q4	15	19,996,350	$143.2M	+1

Who owns OGN

15 super-investors · 2025Q4

Tracked stake

20.00M

Combined value

$143M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New3Added8Trim4

#	Manager	Shares	Value	% of book	Last action
1	AQR Capital Management	8.57M	$61M	0.0%	Added+4.39M
2	D.E. Shaw & Co.	3.39M	$24M	0.0%	Added+2.90M
3	Two Sigma Investments	2.17M	$16M	0.0%	Added+1.53M
4	Ken Griffin Citadel Advisors	2.06M	$15M	0.0%	Added+1.65M
5	Ray Dalio Bridgewater Associates	909.2K	$7M	0.0%	Added+240.5K
6	Steve Cohen Point72	655.7K	$5M	0.0%	New+655.7K
7	Izzy Englander Millennium Mgmt	460.9K	$3M	0.0%	Trim−4.07M
8	Jeremy Grantham GMO	447.7K	$3M	0.0%	Trim−46.4K
9	Ken Griffin Citadel Advisors	406.9K	$3M	0.0%	Added+1.65M
10	Ken Griffin Citadel Advisors	315.7K	$2M	0.0%	Added+1.65M
11	Norges Bank Norway SWF	264.9K	$2M	0.0%	New+264.9K
12	T. Rowe Price	167.1K	$1M	0.0%	Trim−40.7K
13	Wellington Management	129.4K	$928K	0.0%	Trim−5.1K
14	Steve Cohen Point72	30.1K	$216K	0.0%	New+655.7K
15	D.E. Shaw & Co.	17.6K	$126K	0.0%	Added+2.90M

Recent moves

20 transactions

ADDAQR Capital Management
+4,394,814 · 2025Q4
TRIMJeremy Grantham (GMO)
−46,386 · 2025Q4
TRIMWellington Management
−5,053 · 2025Q4
ADDTwo Sigma Investments
+1,529,117 · 2025Q4
ADDD.E. Shaw & Co.
+2,895,864 · 2025Q4
TRIMT. Rowe Price
−40,728 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+1,646,734 · 2025Q4
NEWSteve Cohen (Point72)
+655,731 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−4,066,587 · 2025Q4
ADDRay Dalio (Bridgewater Associates)
+240,538 · 2025Q4
NEWNorges Bank (Norway SWF)
+264,857 · 2025Q4
SOLDMario Gabelli (GAMCO)
−11,630 · 2025Q4
ADDTwo Sigma Investments
+484,959 · 2025Q3
NEWD.E. Shaw & Co.
+490,860 · 2025Q3
ADDAQR Capital Management
+921,260 · 2025Q3
TRIMIzzy Englander (Millennium Mgmt)
−4,562,932 · 2025Q3
ADDT. Rowe Price
+13,860 · 2025Q3
NEWWellington Management
+134,428 · 2025Q3
SOLDNorges Bank (Norway SWF)
−2,043,153 · 2025Q3
ADDRay Dalio (Bridgewater Associates)
+480,251 · 2025Q3

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