Dark Forest Capital Management’s Thermo Fisher Scientific TMO Stock Holding History

Dark Forest Capital Management’s Portfolio TMO Stock Details TMO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-735	Closed	-$356K	–	1347
2025 Q3	$356K	Sell	735 -5,583	-88%	-$2.6M	0.01%	1003
2025 Q2	$2.56M	Buy	+6,318	New	+$2.64M	0.1%	341
2024 Q4	–	Sell	-1,080	Closed	-$668K	–	1283
2024 Q3	$668K	Buy	+1,080	New	+$639K	0.09%	279
2023 Q4	–	Sell	-1,249	Closed	-$632K	–	1048
2023 Q3	$632K	Buy	+1,249	New	+$666K	0.05%	613
2022 Q1	–	Sell	-19	Closed	-$13K	–	1759
2021 Q4	$13K	Buy	19 +12	+171%	+$7.49K	﹤0.01%	844
2021 Q3	$4K	Buy	+7	New	+$3.84K	﹤0.01%	1126

Other funds holding TMO

JSC

J. Stern & Co London, United Kingdom $1.06B AUM 11.76% 1-Year Est. Return

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

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

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

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

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

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Dark Forest Capital Management's TMO Position: Q4 2025 in Review

Dark Forest Capital Management sold out of Thermo Fisher Scientific (TMO) in Q4 2025, closing a stake of 735 shares — an estimated $356K sold.

Dark Forest Capital Management first reported a position in TMO in Q3 2021 and held it in 6 quarters. The position peaked at $2.56M in Q2 2025. 2,701 funds tracked by Wall St. Rank hold TMO as of Q4 2025.

Dark Forest Capital Management reported no remaining Thermo Fisher Scientific position as of Q4 2025 after selling out during the quarter.
Dark Forest Capital Management sold 735 Thermo Fisher Scientific shares in Q4 2025, an estimated $356K.
Dark Forest Capital Management first reported a position in Thermo Fisher Scientific in Q3 2021 and held it in 6 quarters.
Dark Forest Capital Management's Thermo Fisher Scientific position peaked at $2.56M in Q2 2025.
2,701 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q4 2025.

Based on Dark Forest Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.