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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 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 22 Jan 2026
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 2 listed it in both
Shares listed
35,730,077
combined, among listed positions
Reported value
$256m
combined, at the quarter end

Among the 92 comparable managers: 20 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +7,085,577.

Managers listing OGN in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
AQR Capital Management LLC8,570,958$61munder 0.1%Added+4,394,81417 Feb 2026 (the filing on sec.gov)
MFS Investment Management6,882,166$49munder 0.1%Trimmed-2,619,93622 Jan 2026 (the filing on sec.gov)
D. E. Shaw & Co.3,386,724$24munder 0.1%Added+2,895,86417 Feb 2026 (the filing on sec.gov)
Invesco Ltd2,222,248$16munder 0.1%Added+613,35219 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP2,170,476$16munder 0.1%Added+1,529,11717 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC2,062,974$15munder 0.1%Added+1,646,73417 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC2,007,556$14munder 0.1%Added+1,709,52412 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP1,736,800$12munder 0.1%Added+1,155,50017 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC1,485,379$11munder 0.1%Added+1,432,90313 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP909,225$6.5munder 0.1%Added+240,53813 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP655,731$4.7munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC498,631$3.6munder 0.1%Trimmed-3,33117 Feb 2026 (the filing on sec.gov)
Millennium Management LLC460,948$3.3munder 0.1%Trimmed-4,066,58717 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP439,967$3.2munder 0.1%Added+365,12413 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC360,932$2.6munder 0.1%Added+85,25613 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP262,066$1.9munder 0.1%Added+148,67017 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC222,009$1.6munder 0.1%Added+209,81613 Feb 2026 (the filing on sec.gov)
PDT Partners LLC221,620$1.6m0.10%Newnew17 Feb 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP217,017$1.6munder 0.1%Added+160,41517 Feb 2026 (the filing on sec.gov)
Moore Capital Management LP177,385$1.3munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc167,121$1.2munder 0.1%Trimmed-40,72817 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP130,884$938kunder 0.1%Trimmed-301,36817 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP129,375$928kunder 0.1%Trimmed-5,05317 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd115,640$829kunder 0.1%Trimmed-188,10917 Feb 2026 (the filing on sec.gov)
Man Group PLC56,292$404kunder 0.1%Added+26,15517 Feb 2026 (the filing on sec.gov)
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Largest increases and reductions, by shares

Q3 2025 to Q4 2025, 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 (5)

Exited (4)

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 →