North Star Investment Management’s QuidelOrtho QDEL Stock Holding History

North Star Investment Management’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 Q1	$5.75K	Buy	+350	New	+$8.6K	﹤0.01%	1153
2025 Q4	–	Sell	-180	Closed	-$5.3K	–	1609
2025 Q3	$5.3K	Hold	180	–	–	﹤0.01%	1016
2025 Q2	$5.19K	Hold	180	–	–	﹤0.01%	1000
2025 Q1	$6.29K	Hold	180	–	–	﹤0.01%	941
2024 Q4	$8.02K	Hold	180	–	–	﹤0.01%	911
2024 Q3	$8.21K	Hold	180	–	–	﹤0.01%	884
2024 Q2	$5.98K	Buy	180 +40	+29%	+$1.64K	﹤0.01%	900
2024 Q1	$6.71K	Sell	140 -610	-81%	-$35.6K	﹤0.01%	931
2023 Q4	$55.3K	Buy	750 +28	+4%	+$1.89K	﹤0.01%	574
2023 Q3	$52.7K	Hold	722	–	–	﹤0.01%	578
2023 Q2	$59.8K	Sell	722 -23	-3%	-$2.01K	﹤0.01%	579
2023 Q1	$66.4K	Hold	745	–	–	0.01%	579
2022 Q4	$63.8K	Buy	745 +198	+36%	+$16.8K	0.01%	563
2022 Q3	$39K	Buy	547 +13	+2%	+$1.16K	﹤0.01%	583
2022 Q2	$52K	Buy	534 +26	+5%	+$2.65K	﹤0.01%	541
2022 Q1	$57K	Buy	508 +500	+6,250%	+$53.3K	﹤0.01%	554
2021 Q4	$1K	Hold	8	–	–	﹤0.01%	1144
2021 Q3	$1K	Hold	8	–	–	﹤0.01%	1090
2021 Q2	$1K	Buy	+8	New	+$942	﹤0.01%	1064

Other funds holding QDEL

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Newtyn Management New York $936M AUM 27.23% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

RCMNY

Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

North Star Investment Management's QDEL Position: Q1 2026 in Review

North Star Investment Management opened a new position in QuidelOrtho (QDEL) in Q1 2026: 350 shares worth $5.75K. The stake represents ﹤0.01% of the portfolio and ranks #1153 among its holdings. This is a return to the name: North Star Investment Management previously reported a position in QDEL as recently as Q3 2025.

North Star Investment Management first reported a position in QDEL in Q2 2021 and has held it in 19 quarters since. The position peaked at $66.4K in Q1 2023. 238 funds tracked by Wall St. Rank hold QDEL as of Q1 2026.

North Star Investment Management held 350 shares of QuidelOrtho worth $5.75K as of Q1 2026.
QuidelOrtho was a new North Star Investment Management position in Q1 2026.
QuidelOrtho made up ﹤0.01% of North Star Investment Management's portfolio in Q1 2026, its #1153 holding.
North Star Investment Management first reported a position in QuidelOrtho in Q2 2021 and has held it in 19 quarters since.
North Star Investment Management's QuidelOrtho position peaked at $66.4K in Q1 2023.
238 funds tracked by Wall St. Rank held QuidelOrtho as of Q1 2026.

Based on North Star Investment Management's 13F filing for Q1 2026, filed 23 Apr 2026.