Hudson Bay Capital Management
TMO icon

Hudson Bay Capital Management’s Thermo Fisher Scientific TMO Stock Holding History

Hudson Bay 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
2026
Q2 		$261K Buy
+520
New +$250K ﹤0.01% 1080
2025
Q4 		– Sell
-775
Closed -$376K – 1529
2025
Q3 		$376K Sell
775
-4,757
-86% -$2.21M ﹤0.01% 945
2025
Q2 		$2.24M Buy
5,532
+4,770
+626% +$1.99M 0.01% 761
2025
Q1 		$379K Buy
+762
New +$413K ﹤0.01% 1062
2020
Q4 		– Sell
-77,500
Closed -$34.2M – 713
2020
Q3 		$34.2M Sell
77,500
-22,500
-23% -$9.3M 0.51% 26
2020
Q2 		$36.2M Buy
+100,000
New +$33.5M 0.63% 25
2019
Q4 		– Sell
-85,000
Closed -$24.8M – 511
2019
Q3 		$24.8M Sell
85,000
-52,750
-38% -$15.1M 0.68% 27
2019
Q2 		$40.5M Sell
137,750
-11,610
-8% -$3.2M 0.93% 19
2019
Q1 		$40.9M Buy
149,360
+98,956
+196% +$24.6M 0.53% 33
2018
Q4 		$11.3M Sell
50,404
-125,316
-71% -$29.4M 0.15% 133
2018
Q3 		$42.9M Sell
175,720
-25,570
-13% -$5.88M 0.53% 36
2018
Q2 		$41.7M Sell
201,290
-8,363
-4% -$1.78M 0.59% 31
2018
Q1 		$43.3M Buy
209,653
+33,180
+19% +$6.96M 0.9% 15
2017
Q4 		$33.5M Buy
+176,473
New +$33.8M 0.72% 18
2017
Q2 		– Sell
-117,653
Closed -$19.8M – 787
2017
Q1 		$18.1M Buy
117,653
+29,306
+33% +$4.48M 0.24% 82
2016
Q4 		$12.5M Buy
+88,347
New +$13M 0.26% 81
2015
Q1 		– Sell
-36,000
Closed -$4.51M – 200
2014
Q4 		$4.51M Buy
+36,000
New +$4.38M 0.1% 102
2014
Q2 		– Sell
-23,500
Closed -$2.83M – 203
2014
Q1 		$2.83M Buy
23,500
+17,700
+305% +$2.1M 0.08% 120
2013
Q4 		$646K Sell
5,800
-15,000
-72% -$1.49M 0.03% 135
2013
Q3 		$1.92M Buy
+20,800
New +$1.88M 0.07% 119

Other funds holding TMO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Hudson Bay Capital Management's TMO Position: Q2 2026 in Review

Hudson Bay Capital Management opened a new position in Thermo Fisher Scientific (TMO) in Q2 2026: 520 shares worth $261K. The stake represents ﹤0.01% of the portfolio and ranks #1080 among its holdings. This is a return to the name: Hudson Bay Capital Management previously reported a position in TMO as recently as Q3 2025.

Hudson Bay Capital Management first reported a position in TMO in Q3 2013 and has held it in 20 quarters since. The position peaked at $43.3M in Q1 2018. 2,609 funds tracked by Wall St. Rank hold TMO as of Q2 2026.

  • Hudson Bay Capital Management held 520 shares of Thermo Fisher Scientific worth $261K as of Q2 2026.
  • Thermo Fisher Scientific was a new Hudson Bay Capital Management position in Q2 2026.
  • Thermo Fisher Scientific made up ﹤0.01% of Hudson Bay Capital Management's portfolio in Q2 2026, its #1080 holding.
  • Hudson Bay Capital Management first reported a position in Thermo Fisher Scientific in Q3 2013 and has held it in 20 quarters since.
  • Hudson Bay Capital Management's Thermo Fisher Scientific position peaked at $43.3M in Q1 2018.
  • 2,609 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q2 2026.

Based on Hudson Bay Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.