Castellan Group’s Thermo Fisher Scientific TMO Stock Holding History

Castellan 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	–	Sell	-3,637	Closed	-$2.11M	–	56
2025 Q4	$2.11M	Buy	+3,637	New	+$2.06M	0.27%	44

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

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 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

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

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

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Castellan Group's TMO Position: Q1 2026 in Review

Castellan Group sold out of Thermo Fisher Scientific (TMO) in Q1 2026, closing a stake of 3,637 shares — an estimated $2.11M sold.

Castellan Group first reported a position in TMO in Q4 2025 and held it in 1 quarter. The position peaked at $2.11M in Q4 2025. 2,600 funds tracked by Wall St. Rank hold TMO as of Q1 2026.

Castellan Group reported no remaining Thermo Fisher Scientific position as of Q1 2026 after selling out during the quarter.
Castellan Group sold 3,637 Thermo Fisher Scientific shares in Q1 2026, an estimated $2.11M.
Castellan Group first reported a position in Thermo Fisher Scientific in Q4 2025 and held it in 1 quarter.
Castellan Group's Thermo Fisher Scientific position peaked at $2.11M in Q4 2025.
2,600 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q1 2026.

Based on Castellan Group's 13F filing for Q1 2026, filed 23 Apr 2026.