State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s QuidelOrtho QDEL Stock Holding History

State of Wisconsin Investment Board’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 		$716K Buy
43,598
+26,877
+161% +$660K ﹤0.01% 1831
2025
Q4 		$478K Sell
16,721
-4,779
-22% -$129K ﹤0.01% 1965
2025
Q3 		$633K Sell
21,500
-18,939
-47% -$518K ﹤0.01% 1772
2025
Q2 		$1.17M Buy
40,439
+795
+2% +$23.5K ﹤0.01% 1515
2025
Q1 		$1.39M Buy
39,644
+10,861
+38% +$443K ﹤0.01% 1377
2024
Q4 		$1.28M Sell
28,783
-7,828
-21% -$320K ﹤0.01% 1429
2024
Q3 		$1.67M Sell
36,611
-9,755
-21% -$395K ﹤0.01% 1384
2024
Q2 		$1.54M Buy
46,366
+29,257
+171% +$1.2M ﹤0.01% 1406
2024
Q1 		$820K Sell
17,109
-1,299
-7% -$75.8K ﹤0.01% 1496
2023
Q4 		$1.36M Sell
18,408
-4,359
-19% -$295K ﹤0.01% 1315
2023
Q3 		$1.66M Sell
22,767
-170
-0.7% -$13.6K 0.01% 1296
2023
Q2 		$1.9M Sell
22,937
-1,490
-6% -$130K 0.01% 1304
2023
Q1 		$2.18M Sell
24,427
-2,432
-9% -$212K 0.01% 1274
2022
Q4 		$2.3M Sell
26,859
-3,026
-10% -$256K 0.01% 1282
2022
Q3 		$2.14M Sell
29,885
-3,202
-10% -$286K 0.01% 1324
2022
Q2 		$3.21M Buy
33,087
+9,816
+42% +$1M 0.01% 1204
2022
Q1 		$2.62M Buy
23,271
+18,800
+420% +$2M 0.01% 1414
2021
Q4 		$604K Sell
4,471
-136
-3% -$18.9K ﹤0.01% 1622
2021
Q3 		$650K Buy
4,607
+119
+3% +$16K ﹤0.01% 1602
2021
Q2 		$575K Sell
4,488
-225
-5% -$26.5K ﹤0.01% 1650
2021
Q1 		$603K Sell
4,713
-67
-1% -$12.4K ﹤0.01% 1530
2020
Q4 		$859K Sell
4,780
-200
-4% -$44.5K ﹤0.01% 1365
2020
Q3 		$1.09M Sell
4,980
-400
-7% -$89.3K ﹤0.01% 1268
2020
Q2 		$1.2M Buy
+5,380
New +$843K ﹤0.01% 1210
2017
Q1 		– Sell
-42,649
Closed -$914K – 1304
2016
Q4 		$914K Sell
42,649
-37,351
-47% -$801K ﹤0.01% 1206
2016
Q3 		$1.77M Buy
+80,000
New +$1.71M 0.01% 1149

Other funds holding QDEL

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
NM
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
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

State of Wisconsin Investment Board's QDEL Position: Q1 2026 in Review

State of Wisconsin Investment Board increased its QuidelOrtho (QDEL) stake by 161% in Q1 2026, buying an estimated $660K and bringing the position to 43,598 shares worth $716K. The position accounts for ﹤0.01% of the portfolio, ranked #1831.

State of Wisconsin Investment Board first reported a position in QDEL in Q3 2016 and has held it in 26 quarters since. The position peaked at $3.21M in Q2 2022. 238 funds tracked by Wall St. Rank hold QDEL as of Q1 2026.

  • State of Wisconsin Investment Board held 43,598 shares of QuidelOrtho worth $716K as of Q1 2026.
  • State of Wisconsin Investment Board bought 26,877 QuidelOrtho shares in Q1 2026, an estimated $660K.
  • QuidelOrtho made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #1831 holding.
  • State of Wisconsin Investment Board first reported a position in QuidelOrtho in Q3 2016 and has held it in 26 quarters since.
  • State of Wisconsin Investment Board's QuidelOrtho position peaked at $3.21M in Q2 2022.
  • 238 funds tracked by Wall St. Rank held QuidelOrtho as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.