Millennium Management
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Millennium Management’s Organon & Co OGN Stock Holding History

Millennium Management’s Portfolio OGN Stock Details OGN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$40.6M Buy
6,781,535
+6,320,587
+1,371% +$47.6M 0.02% 989
2025
Q4 		$3.3M Sell
460,948
-4,066,587
-90% -$32.1M ﹤0.01% 3453
2025
Q3 		$48.4M Sell
4,527,535
-4,562,932
-50% -$44.8M 0.02% 896
2025
Q2 		$88M Buy
9,090,467
+8,112,724
+830% +$83.7M 0.04% 461
2025
Q1 		$14.6M Buy
977,743
+958,827
+5,069% +$14.7M 0.01% 1825
2024
Q4 		$282K Sell
18,916
-72,717
-79% -$1.19M ﹤0.01% 5107
2024
Q3 		$1.75M Buy
91,633
+25,818
+39% +$535K ﹤0.01% 3819
2024
Q2 		$1.36M Sell
65,815
-92,766
-58% -$1.84M ﹤0.01% 3862
2024
Q1 		$2.98M Sell
158,581
-970,931
-86% -$16.7M ﹤0.01% 3376
2023
Q4 		$16.3M Sell
1,129,512
-19,816
-2% -$270K 0.01% 1717
2023
Q3 		$20M Buy
1,149,328
+291,057
+34% +$6.07M 0.01% 1444
2023
Q2 		$17.9M Buy
858,271
+736,318
+604% +$16M 0.01% 1490
2023
Q1 		$2.87M Sell
121,953
-1,176,844
-91% -$31.6M ﹤0.01% 3085
2022
Q4 		$36.3M Buy
1,298,797
+601,912
+86% +$15.4M 0.02% 976
2022
Q3 		$16.3M Buy
+696,885
New +$21M 0.01% 1558
2022
Q2 		– Sell
-503,021
Closed -$17.6M – 7341
2022
Q1 		$17.6M Buy
503,021
+460,185
+1,074% +$15.7M 0.01% 1526
2021
Q4 		$1.3M Sell
42,836
-26,492
-38% -$863K ﹤0.01% 4157
2021
Q3 		$2.27M Sell
69,328
-349,487
-83% -$11.2M ﹤0.01% 3760
2021
Q2 		$12.7M Buy
+418,815
New +$13.8M 0.01% 1632

Other funds holding OGN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return
KBG
Kahn Brothers Group New York $564M AUM 25.3% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
PMG
Private Management Group Irvine, California $3.47B AUM 13.39% 1-Year Est. Return
TI
Think Investments San Francisco, California $762M AUM 33.1% 1-Year Est. Return

Millennium Management's OGN Position: Q1 2026 in Review

Millennium Management increased its Organon & Co (OGN) stake by 1,371% in Q1 2026, buying an estimated $47.6M and bringing the position to 6,781,535 shares worth $40.6M. The position accounts for 0.02% of the portfolio, ranked #989.

Millennium Management first reported a position in OGN in Q2 2021 and has held it in 19 quarters since. The position peaked at $88M in Q2 2025. 603 funds tracked by Wall St. Rank hold OGN as of Q1 2026.

  • Millennium Management held 6,781,535 shares of Organon & Co worth $40.6M as of Q1 2026.
  • Millennium Management bought 6,320,587 Organon & Co shares in Q1 2026, an estimated $47.6M.
  • Organon & Co made up 0.02% of Millennium Management's portfolio in Q1 2026, its #989 holding.
  • Millennium Management first reported a position in Organon & Co in Q2 2021 and has held it in 19 quarters since.
  • Millennium Management's Organon & Co position peaked at $88M in Q2 2025.
  • 603 funds tracked by Wall St. Rank held Organon & Co as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.