Thompson Siegel & Walmsley’s QuidelOrtho QDEL Stock Holding History

Thompson Siegel & Walmsley’s Portfolio QDEL Stock Details QDEL Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$7.37M	Buy	420,815 +10,581	+3%	+$140K	0.13%	180
2026 Q1	$6.74M	Buy	410,234 +25,439	+7%	+$625K	0.12%	176
2025 Q4	$11M	Sell	384,795 -24,447	-6%	-$662K	0.18%	120
2025 Q3	$12.1M	Buy	409,242 +38,346	+10%	+$1.05M	0.19%	114
2025 Q2	$10.7M	Buy	370,896 +46,039	+14%	+$1.36M	0.18%	125
2025 Q1	$11.4M	Sell	324,857 -13,003	-4%	-$530K	0.19%	116
2024 Q4	$15.1M	Buy	337,860 +85,405	+34%	+$3.49M	0.23%	108
2024 Q3	$11.5M	Sell	252,455 -15,347	-6%	-$621K	0.17%	121
2024 Q2	$8.9M	Buy	+267,802	New	+$11M	0.14%	139

Other funds holding QDEL

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

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

Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

RCMNY

Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Thompson Siegel & Walmsley's QDEL Position: Q2 2026 in Review

Thompson Siegel & Walmsley increased its QuidelOrtho (QDEL) stake by 2.6% in Q2 2026, buying an estimated $140K and bringing the position to 420,815 shares worth $7.37M. The position accounts for 0.13% of the portfolio, ranked #180.

Thompson Siegel & Walmsley first reported a position in QDEL in Q2 2024 and has held it in 9 quarters since. The position peaked at $15.1M in Q4 2024. 245 funds tracked by Wall St. Rank hold QDEL as of Q2 2026.

Thompson Siegel & Walmsley held 420,815 shares of QuidelOrtho worth $7.37M as of Q2 2026.
Thompson Siegel & Walmsley bought 10,581 QuidelOrtho shares in Q2 2026, an estimated $140K.
QuidelOrtho made up 0.13% of Thompson Siegel & Walmsley's portfolio in Q2 2026, its #180 holding.
Thompson Siegel & Walmsley first reported a position in QuidelOrtho in Q2 2024 and has held it in 9 quarters since.
Thompson Siegel & Walmsley's QuidelOrtho position peaked at $15.1M in Q4 2024.
245 funds tracked by Wall St. Rank held QuidelOrtho as of Q2 2026.

Based on Thompson Siegel & Walmsley's 13F filing for Q2 2026, filed 11 Aug 2026.