Birchbrook’s Organon & Co OGN Stock Holding History

Birchbrook’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
2025 Q3	–	Sell	-103	Closed	-$998	–	276
2025 Q2	$998	Buy	+103	New	+$1.06K	﹤0.01%	248
2025 Q1	–	Sell	-20	Closed	-$299	–	293
2024 Q4	$299	Buy	+20	New	+$326	﹤0.01%	283

Other funds holding OGN

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

GAM

Gotham Asset Management New York $43B AUM 34.97% 1-Year Est. Return

Birchbrook's OGN Position: Q3 2025 in Review

Birchbrook sold out of Organon & Co (OGN) in Q3 2025, closing a stake of 103 shares — an estimated $998 sold.

Birchbrook first reported a position in OGN in Q4 2024 and held it in 2 quarters. The position peaked at $998 in Q2 2025. 670 funds tracked by Wall St. Rank hold OGN as of Q3 2025.

Birchbrook reported no remaining Organon & Co position as of Q3 2025 after selling out during the quarter.
Birchbrook sold 103 Organon & Co shares in Q3 2025, an estimated $998.
Birchbrook first reported a position in Organon & Co in Q4 2024 and held it in 2 quarters.
Birchbrook's Organon & Co position peaked at $998 in Q2 2025.
670 funds tracked by Wall St. Rank held Organon & Co as of Q3 2025.

Based on Birchbrook's 13F filing for Q3 2025, filed 3 Nov 2025.