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Deerfield Management’s Thermo Fisher Scientific TMO Stock Holding History

Deerfield 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
-944
Closed -$458K – 177
2025
Q3 		$458K Buy
944
+28
+3% +$13K 0.01% 134
2025
Q2 		$371K Buy
+916
New +$383K 0.01% 86

Other funds holding TMO

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

Deerfield Management's TMO Position: Q4 2025 in Review

Deerfield Management sold out of Thermo Fisher Scientific (TMO) in Q4 2025, closing a stake of 944 shares — an estimated $458K sold.

Deerfield Management first reported a position in TMO in Q2 2025 and held it in 2 quarters. The position peaked at $458K in Q3 2025. 2,701 funds tracked by Wall St. Rank hold TMO as of Q4 2025.

  • Deerfield Management reported no remaining Thermo Fisher Scientific position as of Q4 2025 after selling out during the quarter.
  • Deerfield Management sold 944 Thermo Fisher Scientific shares in Q4 2025, an estimated $458K.
  • Deerfield Management first reported a position in Thermo Fisher Scientific in Q2 2025 and held it in 2 quarters.
  • Deerfield Management's Thermo Fisher Scientific position peaked at $458K in Q3 2025.
  • 2,701 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q4 2025.

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