Citadel Advisors
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Citadel Advisors’s Organon & Co OGN Stock Holding History

Citadel Advisors’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
Q2 		$4.66M Sell
344,359
-1,654,031
-83% -$19.8M ﹤0.01% 4848
2026
Q1 		$12M Sell
1,998,390
-64,584
-3% -$486K ﹤0.01% 3008
2025
Q4 		$14.8M Buy
2,062,974
+1,646,734
+396% +$13M ﹤0.01% 2722
2025
Q3 		$4.45M Sell
416,240
-5,046,170
-92% -$49.5M ﹤0.01% 4569
2025
Q2 		$52.9M Buy
5,462,410
+1,454,743
+36% +$15M 0.01% 1199
2025
Q1 		$59.7M Buy
4,007,667
+4,007,315
+1,138,442% +$61.6M 0.01% 1026
2024
Q4 		$5.25K Sell
352
-2,884,101
-100% -$47M ﹤0.01% 13879
2024
Q3 		$55.2M Buy
2,884,453
+1,162,145
+67% +$24.1M 0.01% 1122
2024
Q2 		$35.7M Sell
1,722,308
-4,454,702
-72% -$88.5M 0.01% 1436
2024
Q1 		$116M Buy
6,177,010
+1,966,914
+47% +$33.8M 0.02% 614
2023
Q4 		$60.7M Buy
4,210,096
+2,347,869
+126% +$31.9M 0.01% 1036
2023
Q3 		$32.3M Buy
1,862,227
+920,423
+98% +$19.2M 0.01% 1437
2023
Q2 		$19.6M Buy
941,804
+510,668
+118% +$11.1M ﹤0.01% 1906
2023
Q1 		$10.1M Sell
431,136
-950,688
-69% -$25.5M ﹤0.01% 2804
2022
Q4 		$38.6M Buy
1,381,824
+362,347
+36% +$9.26M 0.01% 1334
2022
Q3 		$23.9M Buy
1,019,477
+998,554
+4,773% +$30.1M 0.01% 1704
2022
Q2 		$706K Sell
20,923
-3,444
-14% -$121K ﹤0.01% 7853
2022
Q1 		$851K Sell
24,367
-17,913
-42% -$613K ﹤0.01% 8079
2021
Q4 		$1.29M Sell
42,280
-371,218
-90% -$12.1M ﹤0.01% 7282
2021
Q3 		$13.6M Buy
413,498
+359,938
+672% +$11.5M ﹤0.01% 2587
2021
Q2 		$1.62M Buy
+53,560
New +$1.76M ﹤0.01% 7127

Other funds holding OGN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PCM
Pentwater Capital Management Naples, Florida $16.4B AUM 55.44% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Man Group
Man Group London, United Kingdom $62.7B AUM 29.77% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return

Citadel Advisors's OGN Position: Q2 2026 in Review

Citadel Advisors reduced its Organon & Co (OGN) stake by 83% in Q2 2026, selling an estimated $19.8M and leaving 344,359 shares worth $4.66M. The position accounts for ﹤0.01% of the portfolio, ranked #4848.

Citadel Advisors first reported a position in OGN in Q2 2021 and has held it in 21 quarters since. The position peaked at $116M in Q1 2024. 631 funds tracked by Wall St. Rank hold OGN as of Q2 2026.

  • Citadel Advisors held 344,359 shares of Organon & Co worth $4.66M as of Q2 2026.
  • Citadel Advisors sold 1,654,031 Organon & Co shares in Q2 2026, an estimated $19.8M.
  • Organon & Co made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #4848 holding.
  • Citadel Advisors first reported a position in Organon & Co in Q2 2021 and has held it in 21 quarters since.
  • Citadel Advisors's Organon & Co position peaked at $116M in Q1 2024.
  • 631 funds tracked by Wall St. Rank held Organon & Co as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.