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Woodline Partners’s Thermo Fisher Scientific TMO Stock Holding History

Woodline Partners’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
2026
Q1 		$166M Buy
337,819
+131,470
+64% +$71.3M 0.63% 18
2025
Q4 		$120M Buy
206,349
+167,411
+430% +$94.7M 0.46% 33
2025
Q3 		$18.9M Buy
38,938
+25,379
+187% +$11.8M 0.09% 296
2025
Q2 		$5.5M Buy
+13,559
New +$5.67M 0.03% 538
2025
Q1 		– Sell
-11,699
Closed -$6.09M – 1032
2024
Q4 		$6.09M Buy
+11,699
New +$6.43M 0.04% 445
2023
Q3 		– Sell
-55,687
Closed -$29.1M – 736
2023
Q2 		$29.1M Buy
+55,687
New +$30.1M 0.34% 83
2023
Q1 		– Sell
-139,827
Closed -$77M – 775
2022
Q4 		$77M Buy
+139,827
New +$74.1M 1.03% 11
2022
Q3 		– Sell
-50,674
Closed -$27.5M – 818
2022
Q2 		$27.5M Buy
50,674
+27,403
+118% +$15.1M 0.42% 64
2022
Q1 		$13.7M Buy
23,271
+5,318
+30% +$3.05M 0.22% 137
2021
Q4 		$12M Buy
+17,953
New +$11.2M 0.17% 162

Other funds holding TMO

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Woodline Partners's TMO Position: Q1 2026 in Review

Woodline Partners increased its Thermo Fisher Scientific (TMO) stake by 64% in Q1 2026, buying an estimated $71.3M and bringing the position to 337,819 shares worth $166M. The position accounts for 0.63% of the portfolio, ranked #18.

Woodline Partners first reported a position in TMO in Q4 2021 and has held it in 10 quarters since. 2,587 funds tracked by Wall St. Rank hold TMO as of Q1 2026.

  • Woodline Partners held 337,819 shares of Thermo Fisher Scientific worth $166M as of Q1 2026.
  • Woodline Partners bought 131,470 Thermo Fisher Scientific shares in Q1 2026, an estimated $71.3M.
  • Thermo Fisher Scientific made up 0.63% of Woodline Partners's portfolio in Q1 2026, its #18 holding.
  • Woodline Partners first reported a position in Thermo Fisher Scientific in Q4 2021 and has held it in 10 quarters since.
  • 2,587 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q1 2026.

Based on Woodline Partners's 13F filing for Q1 2026, filed 15 May 2026.