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OGN in the 13F filings

Organon & Co · CUSIP 68622V106

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Pharmaceutical preparations
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
27
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 3 listed it in both
Shares listed
30,821,092
combined, among listed positions
Reported value
$185m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 16 buyers (opened or added shares) and 16 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -3,172,185.

Managers listing OGN in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

27 of 27 holders

ActionFiling
Millennium Management LLC6,781,535$41munder 0.1%Added+6,320,58715 May 2026 (the filing on sec.gov)
AQR Capital Management LLC3,450,626$20munder 0.1%Trimmed-5,120,33215 May 2026 (the filing on sec.gov)
Two Sigma Investments LP3,137,020$19munder 0.1%Added+966,54415 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.2,644,552$16munder 0.1%Trimmed-742,17215 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)2,558,692$15munder 0.1%Added+2,523,36515 May 2026 (the filing on sec.gov)
Invesco Ltd2,226,714$13munder 0.1%Added+4,46612 May 2026 (the filing on sec.gov)
Citadel Advisors LLC1,998,390$12munder 0.1%Trimmed-64,58415 May 2026 (the filing on sec.gov)
MFS Investment Management1,689,210$10munder 0.1%Trimmed-5,192,95614 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP1,082,760$6.5munder 0.1%Added+820,69415 May 2026 (the filing on sec.gov)
Marshall Wace LLP933,176$5.6munder 0.1%Added+493,20915 May 2026 (the filing on sec.gov)
AllianceBernstein LP720,512$5.2munder 0.1%Added+589,62815 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC831,424$5.0munder 0.1%Added+470,49215 May 2026 (the filing on sec.gov)
Bridgewater Associates LP594,483$3.6munder 0.1%Trimmed-314,74215 May 2026 (the filing on sec.gov)
Walleye Capital LLC393,125$2.4munder 0.1%Trimmed-1,092,25413 May 2026 (the filing on sec.gov)
PDT Partners LLC277,407$1.7m0.10%Added+55,78715 May 2026 (the filing on sec.gov)
Point72 Asset Management LP238,000$1.4munder 0.1%Trimmed-417,73115 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC217,900$1.3munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc201,132$1.2munder 0.1%Added+34,01115 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP182,846$1.1munder 0.1%Newnew14 May 2026 (the filing on sec.gov)
Wellington Management Group LLP167,327$1.0munder 0.1%Added+37,95215 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP163,067$977kunder 0.1%Trimmed-53,95015 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd115,640$692kunder 0.1%Held018 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC75,233$449kunder 0.1%Added+51,97713 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC52,525$315kunder 0.1%Added+22,53915 May 2026 (the filing on sec.gov)
Tudor Investment Corp37,530$225kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (3)

Exited (6)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
5 in Q3 2024 to 3 in Q2 2026

Tracked managers listing it, at least.

03581020222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
OGN by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20219$282mn.a.n.a.
Q3 20218$481mn.a.n.a.
Q4 20217$540mn.a.n.a.
Q1 20227$741mn.a.n.a.
Q2 20226$743mn.a.n.a.
Q3 202210$558mn.a.n.a.
Q4 202210$660mn.a.n.a.
Q1 20238$484mn.a.n.a.
Q2 20238$407mn.a.n.a.
Q3 20235$269mn.a.n.a.
Q4 20236$274m52
Q1 20245$273m33
Q2 20243$288m14
Q3 20245$243m32
Q4 20242$150m21
Q1 20253$178m30
Q2 20254$194m31
Q3 20252$109m11
Q4 20255$71m2015
Q1 20262$5.2m1616
Q2 20263$67m1022

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

OGN and LLY →OGN and JNJ →OGN and VRTX →Choose a stock to compare with OGN →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own OGN, latest filings →Back to the 13F Explorer →