Russell Investments Group
TMO icon

Russell Investments Group’s Thermo Fisher Scientific TMO Stock Holding History

Russell Investments Group’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 		$149M Buy
303,653
+21,111
+7% +$11.5M 0.16% 121
2025
Q4 		$164M Buy
282,542
+36,776
+15% +$20.8M 0.18% 103
2025
Q3 		$119M Buy
245,766
+17,968
+8% +$8.36M 0.13% 157
2025
Q2 		$92.4M Sell
227,798
-58,769
-21% -$24.6M 0.12% 180
2025
Q1 		$143M Sell
286,567
-7,482
-3% -$4.05M 0.2% 98
2024
Q4 		$153M Buy
294,049
+12,212
+4% +$6.71M 0.21% 79
2024
Q3 		$174M Buy
281,837
+20,533
+8% +$12.2M 0.25% 66
2024
Q2 		$144M Sell
261,304
-5,610
-2% -$3.21M 0.23% 79
2024
Q1 		$155M Buy
266,914
+14,698
+6% +$8.25M 0.24% 74
2023
Q4 		$134M Buy
252,216
+14,582
+6% +$7.06M 0.24% 81
2023
Q3 		$120M Buy
237,634
+44,440
+23% +$23.7M 0.24% 78
2023
Q2 		$101M Sell
193,194
-68,455
-26% -$36.9M 0.19% 100
2023
Q1 		$150M Sell
261,649
-7,410
-3% -$4.18M 0.29% 55
2022
Q4 		$148M Buy
269,059
+7,668
+3% +$4.06M 0.31% 53
2022
Q3 		$133M Sell
261,391
-34,873
-12% -$19.5M 0.29% 56
2022
Q2 		$161M Sell
296,264
-25,433
-8% -$14M 0.33% 47
2022
Q1 		$190M Buy
321,697
+48,775
+18% +$28M 0.33% 45
2021
Q4 		$182M Buy
272,922
+21,621
+9% +$13.5M 0.29% 53
2021
Q3 		$144M Buy
251,301
+27,138
+12% +$14.9M 0.24% 70
2021
Q2 		$113M Sell
224,163
-19,145
-8% -$9.03M 0.19% 107
2021
Q1 		$111M Buy
243,308
+6,039
+3% +$2.88M 0.2% 97
2020
Q4 		$110M Buy
237,269
+48,535
+26% +$22.8M 0.22% 84
2020
Q3 		$82.9M Buy
188,734
+36,861
+24% +$15.2M 0.18% 123
2020
Q2 		$54.5M Sell
151,873
-28,552
-16% -$9.57M 0.12% 183
2020
Q1 		$51.2M Sell
180,425
-11,059
-6% -$3.49M 0.13% 168
2019
Q4 		$62.2M Sell
191,484
-13,762
-7% -$4.17M 0.12% 199
2019
Q3 		$59.5M Buy
205,246
+28,792
+16% +$8.24M 0.12% 210
2019
Q2 		$51.8M Sell
176,454
-17,346
-9% -$4.78M 0.1% 255
2019
Q1 		$52.9M Sell
193,800
-48,895
-20% -$12.2M 0.1% 239
2018
Q4 		$54.2M Buy
242,695
+108,372
+81% +$25.4M 0.12% 188
2018
Q3 		$32.8M Buy
134,323
+7,956
+6% +$1.83M 0.06% 362
2018
Q2 		$26.1M Sell
126,367
-202,158
-62% -$42.9M 0.05% 419
2018
Q1 		$67.7M Buy
328,525
+16,825
+5% +$3.53M 0.11% 198
2017
Q4 		$59.6M Sell
311,700
-217,339
-41% -$41.6M 0.1% 233
2017
Q3 		$100M Buy
529,039
+8,354
+2% +$1.51M 0.17% 126
2017
Q2 		$90.9M Sell
520,685
-55,284
-10% -$9.29M 0.16% 127
2017
Q1 		$88.5M Sell
575,969
-447,355
-44% -$68.4M 0.16% 135
2016
Q4 		$145M Buy
+1,023,324
New +$151M 0.28% 60

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

Russell Investments Group's TMO Position: Q1 2026 in Review

Russell Investments Group increased its Thermo Fisher Scientific (TMO) stake by 7.5% in Q1 2026, buying an estimated $11.5M and bringing the position to 303,653 shares worth $149M. The position accounts for 0.16% of the portfolio, ranked #121.

Russell Investments Group first reported a position in TMO in Q4 2016 and has held it in 38 quarters since. The position peaked at $190M in Q1 2022. 2,588 funds tracked by Wall St. Rank hold TMO as of Q1 2026.

  • Russell Investments Group held 303,653 shares of Thermo Fisher Scientific worth $149M as of Q1 2026.
  • Russell Investments Group bought 21,111 Thermo Fisher Scientific shares in Q1 2026, an estimated $11.5M.
  • Thermo Fisher Scientific made up 0.16% of Russell Investments Group's portfolio in Q1 2026, its #121 holding.
  • Russell Investments Group first reported a position in Thermo Fisher Scientific in Q4 2016 and has held it in 38 quarters since.
  • Russell Investments Group's Thermo Fisher Scientific position peaked at $190M in Q1 2022.
  • 2,588 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q1 2026.

Based on Russell Investments Group's 13F filing for Q1 2026, filed 8 May 2026.