MainStreet Investment Advisors’s Thermo Fisher Scientific TMO Stock Holding History

MainStreet Investment Advisors’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	$1.86M	Buy	3,706 +111	+3%	+$53.3K	0.25%	78
2026 Q1	$1.77M	Sell	3,595 -19	-0.5%	-$10.3K	0.27%	73
2025 Q4	$2.09M	Sell	3,614 -65	-2%	-$36.8K	0.3%	71
2025 Q3	$1.78M	Buy	3,679 +343	+10%	+$160K	0.24%	80
2025 Q2	$1.35M	Buy	+3,336	New	+$1.39M	0.19%	87
2025 Q1	–	Sell	-448	Closed	-$233K	–	162
2024 Q4	$233K	Buy	+448	New	+$246K	0.03%	145
2020 Q2	–	Sell	-2,384	Closed	-$676K	–	297
2020 Q1	$676K	Buy	+2,384	New	+$752K	0.08%	129

Other funds holding TMO

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

MainStreet Investment Advisors's TMO Position: Q2 2026 in Review

MainStreet Investment Advisors increased its Thermo Fisher Scientific (TMO) stake by 3.1% in Q2 2026, buying an estimated $53.3K and bringing the position to 3,706 shares worth $1.86M. The position accounts for 0.25% of the portfolio, ranked #78.

MainStreet Investment Advisors first reported a position in TMO in Q1 2020 and has held it in 7 quarters since. The position peaked at $2.09M in Q4 2025. 2,620 funds tracked by Wall St. Rank hold TMO as of Q2 2026.

MainStreet Investment Advisors held 3,706 shares of Thermo Fisher Scientific worth $1.86M as of Q2 2026.
MainStreet Investment Advisors bought 111 Thermo Fisher Scientific shares in Q2 2026, an estimated $53.3K.
Thermo Fisher Scientific made up 0.25% of MainStreet Investment Advisors's portfolio in Q2 2026, its #78 holding.
MainStreet Investment Advisors first reported a position in Thermo Fisher Scientific in Q1 2020 and has held it in 7 quarters since.
MainStreet Investment Advisors's Thermo Fisher Scientific position peaked at $2.09M in Q4 2025.
2,620 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q2 2026.

Based on MainStreet Investment Advisors's 13F filing for Q2 2026, filed 12 Aug 2026.