Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s Thermo Fisher Scientific TMO Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’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 		$1.37B Buy
2,739,191
+236,985
+9% +$114M 3.09% 9
2026
Q1 		$1.23B Buy
2,502,206
+90,143
+4% +$48.9M 3.15% 8
2025
Q4 		$1.4B Buy
2,412,063
+270,200
+13% +$153M 3.57% 8
2025
Q3 		$1.04B Buy
2,141,863
+290,558
+16% +$135M 2.93% 9
2025
Q2 		$751M Buy
1,851,305
+395,225
+27% +$165M 2.26% 16
2025
Q1 		$725M Buy
1,456,080
+362,214
+33% +$196M 2.28% 13
2024
Q4 		$569M Buy
1,093,866
+639,467
+141% +$352M 1.85% 20
2024
Q3 		$281M Buy
454,399
+28,760
+7% +$17M 0.88% 29
2024
Q2 		$235M Buy
+425,639
New +$244M 0.8% 30
2022
Q4 		– Sell
-2,700
Closed -$1.37M – 777
2022
Q3 		$1.37M Buy
+2,700
New +$1.51M 0.01% 467
2018
Q4 		– Sell
-3,300
Closed -$805K – 586
2018
Q3 		$805K Sell
3,300
-300
-8% -$69K 0.01% 392
2018
Q2 		$746K Hold
3,600
– – 0.01% 411
2018
Q1 		$743K Sell
3,600
-200
-5% -$42K ﹤0.01% 410
2017
Q4 		$722K Buy
3,800
+2,100
+124% +$402K ﹤0.01% 392
2017
Q3 		$322K Buy
+1,700
New +$308K ﹤0.01% 465
2017
Q2 		– Sell
-1,800
Closed -$276K – 628
2017
Q1 		$276K Buy
+1,800
New +$275K ﹤0.01% 449
2014
Q2 		– Sell
-18,200
Closed -$2.19M – 554
2014
Q1 		$2.19M Sell
18,200
-25,365
-58% -$3.02M 0.01% 405
2013
Q4 		$4.85M Buy
43,565
+37,890
+668% +$3.77M 0.01% 316
2013
Q3 		$523K Sell
5,675
-6,300
-53% -$570K ﹤0.01% 543
2013
Q2 		$1.01M Buy
+11,975
New +$997K ﹤0.01% 461

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

Grantham, Mayo, Van Otterloo & Co (GMO)'s TMO Position: Q2 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) increased its Thermo Fisher Scientific (TMO) stake by 9.5% in Q2 2026, buying an estimated $114M and bringing the position to 2,739,191 shares worth $1.37B. The position accounts for 3.09% of the portfolio, ranked #9.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in TMO in Q2 2013 and has held it in 20 quarters since. The position peaked at $1.4B in Q4 2025. 2,602 funds tracked by Wall St. Rank hold TMO as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 2,739,191 shares of Thermo Fisher Scientific worth $1.37B as of Q2 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) bought 236,985 Thermo Fisher Scientific shares in Q2 2026, an estimated $114M.
  • Thermo Fisher Scientific made up 3.09% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q2 2026, its #9 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Thermo Fisher Scientific in Q2 2013 and has held it in 20 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Thermo Fisher Scientific position peaked at $1.4B in Q4 2025.
  • 2,602 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q2 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q2 2026, filed 13 Aug 2026.