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Port Capital’s Thermo Fisher Scientific TMO Stock Holding History

Port Capital’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 		$557K Buy
1,134
+25
+2% +$13.6K 0.02% 65
2025
Q4 		$643K Sell
1,109
-25
-2% -$14.1K 0.03% 62
2025
Q3 		$550K Sell
1,134
-17
-1% -$7.91K 0.02% 66
2025
Q2 		$467K Buy
1,151
+30
+3% +$12.5K 0.02% 67
2025
Q1 		$558K Sell
1,121
-264
-19% -$143K 0.03% 65
2024
Q4 		$721K Buy
1,385
+22
+2% +$12.1K 0.03% 62
2024
Q3 		$843K Sell
1,363
-201
-13% -$119K 0.04% 55
2024
Q2 		$865K Sell
1,564
-46
-3% -$26.4K 0.04% 53
2024
Q1 		$936K Buy
1,610
+239
+17% +$134K 0.05% 51
2023
Q4 		$728K Sell
1,371
-2
-0.1% -$968 0.04% 58
2023
Q3 		$695K Sell
1,373
-118
-8% -$62.9K 0.04% 54
2023
Q2 		$778K Buy
+1,491
New +$805K 0.05% 52
2021
Q4 		– Sell
-3,491
Closed -$2M – 86
2021
Q3 		$2M Sell
3,491
-17
-0.5% -$9.33K 0.1% 43
2021
Q2 		$1.77M Buy
3,508
+16
+0.5% +$7.55K 0.09% 45
2021
Q1 		$1.59M Buy
3,492
+9
+0.3% +$4.3K 0.09% 46
2020
Q4 		$1.62M Buy
+3,483
New +$1.63M 0.11% 47

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

Port Capital's TMO Position: Q1 2026 in Review

Port Capital increased its Thermo Fisher Scientific (TMO) stake by 2.3% in Q1 2026, buying an estimated $13.6K and bringing the position to 1,134 shares worth $557K. The position accounts for 0.02% of the portfolio, ranked #65.

Port Capital first reported a position in TMO in Q4 2020 and has held it in 16 quarters since. The position peaked at $2M in Q3 2021. 2,587 funds tracked by Wall St. Rank hold TMO as of Q1 2026.

  • Port Capital held 1,134 shares of Thermo Fisher Scientific worth $557K as of Q1 2026.
  • Port Capital bought 25 Thermo Fisher Scientific shares in Q1 2026, an estimated $13.6K.
  • Thermo Fisher Scientific made up 0.02% of Port Capital's portfolio in Q1 2026, its #65 holding.
  • Port Capital first reported a position in Thermo Fisher Scientific in Q4 2020 and has held it in 16 quarters since.
  • Port Capital's Thermo Fisher Scientific position peaked at $2M in Q3 2021.
  • 2,587 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q1 2026.

Based on Port Capital's 13F filing for Q1 2026, filed 15 May 2026.