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Sio Capital Management’s Organon & Co OGN Stock Holding History

Sio Capital 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
Q2 		– Sell
-865,908
Closed -$5.19M – 83
2026
Q1 		$5.19M Sell
865,908
-2,555,857
-75% -$19.2M 0.74% 41
2025
Q4 		$24.5M Buy
+3,421,765
New +$27M 3.86% 8
2025
Q1 		– Sell
-606,410
Closed -$9.05M – 61
2024
Q4 		$9.05M Buy
+606,410
New +$9.88M 2.55% 12
2024
Q3 		– Sell
-608,096
Closed -$12.6M – 49
2024
Q2 		$12.6M Buy
608,096
+129,073
+27% +$2.57M 3.41% 7
2024
Q1 		$9.01M Buy
+479,023
New +$8.22M 2.68% 9
2023
Q4 		– Sell
-767,000
Closed -$13.3M – 51
2023
Q3 		$13.3M Buy
767,000
+362,062
+89% +$7.55M 4.12% 9
2023
Q2 		$8.43M Sell
404,938
-66,615
-14% -$1.45M 2.14% 15
2023
Q1 		$11.1M Sell
471,553
-116,283
-20% -$3.12M 5.48% 7
2022
Q4 		$16.4M Sell
587,836
-41,000
-7% -$1.05M 6.07% 5
2022
Q3 		$14.7M Buy
628,836
+53,981
+9% +$1.63M 4.68% 8
2022
Q2 		$19.4M Buy
+574,855
New +$20.1M 7.29% 3
2022
Q1 		– Sell
-177,659
Closed -$5.41M – 79
2021
Q4 		$5.41M Buy
+177,659
New +$5.79M 1.63% 17

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

Sio Capital Management's OGN Position: Q2 2026 in Review

Sio Capital Management sold out of Organon & Co (OGN) in Q2 2026, closing a stake of 865,908 shares — an estimated $5.19M sold.

Sio Capital Management first reported a position in OGN in Q4 2021 and held it in 12 quarters. The position peaked at $24.5M in Q4 2025. 627 funds tracked by Wall St. Rank hold OGN as of Q2 2026.

  • Sio Capital Management reported no remaining Organon & Co position as of Q2 2026 after selling out during the quarter.
  • Sio Capital Management sold 865,908 Organon & Co shares in Q2 2026, an estimated $5.19M.
  • Sio Capital Management first reported a position in Organon & Co in Q4 2021 and held it in 12 quarters.
  • Sio Capital Management's Organon & Co position peaked at $24.5M in Q4 2025.
  • 627 funds tracked by Wall St. Rank held Organon & Co as of Q2 2026.

Based on Sio Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.