TRCT
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Tower Research Capital (TRC)’s QuidelOrtho QDEL Stock Holding History

Tower Research Capital (TRC)’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 		$98.1K Buy
5,973
+3,827
+178% +$94K ﹤0.01% 2206
2025
Q4 		$61.3K Sell
2,146
-977
-31% -$26.5K ﹤0.01% 2277
2025
Q3 		$92K Sell
3,123
-2,174
-41% -$59.4K ﹤0.01% 2058
2025
Q2 		$153K Buy
5,297
+4,727
+829% +$140K ﹤0.01% 2033
2025
Q1 		$19.9K Buy
570
+174
+44% +$7.1K ﹤0.01% 2975
2024
Q4 		$17.6K Sell
396
-2,401
-86% -$98.2K ﹤0.01% 3295
2024
Q3 		$128K Sell
2,797
-78,020
-97% -$3.16M ﹤0.01% 2035
2024
Q2 		$2.68M Buy
80,817
+77,700
+2,493% +$3.18M 0.05% 339
2024
Q1 		$149K Sell
3,117
-9,245
-75% -$539K ﹤0.01% 1597
2023
Q4 		$911K Buy
12,362
+10,137
+456% +$685K 0.01% 913
2023
Q3 		$163K Sell
2,225
-11,436
-84% -$913K 0.01% 1577
2023
Q2 		$1.13M Buy
13,661
+11,600
+563% +$1.02M 0.04% 439
2023
Q1 		$184K Sell
2,061
-768
-27% -$66.8K 0.01% 1415
2022
Q4 		$243K Buy
2,829
+595
+27% +$50.4K 0.01% 1182
2022
Q3 		$160K Sell
2,234
-8,756
-80% -$783K ﹤0.01% 2140
2022
Q2 		$1.07M Buy
10,990
+2,824
+35% +$288K 0.02% 649
2022
Q1 		$919K Buy
8,166
+2,704
+50% +$288K 0.01% 825
2021
Q4 		$738K Buy
5,462
+3,317
+155% +$462K 0.01% 870
2021
Q3 		$303K Sell
2,145
-310
-13% -$41.7K 0.01% 1398
2021
Q2 		$315K Sell
2,455
-2,348
-49% -$276K 0.01% 1568
2021
Q1 		$614K Buy
4,803
+2,352
+96% +$434K 0.01% 1067
2020
Q4 		$440K Sell
2,451
-3,622
-60% -$805K 0.01% 1089
2020
Q3 		$1.33M Sell
6,073
-1,772
-23% -$395K 0.01% 710
2020
Q2 		$1.76M Buy
+7,845
New +$1.23M 0.07% 267
2019
Q4 		– Sell
-49
Closed -$3K – 4211
2019
Q3 		$3K Sell
49
-540
-92% -$32.5K ﹤0.01% 3581
2019
Q2 		$35K Buy
589
+386
+190% +$23.2K ﹤0.01% 1815
2019
Q1 		$13K Buy
+203
New +$12.3K ﹤0.01% 2535
2018
Q3 		– Sell
-39
Closed -$3K – 4158
2018
Q2 		$3K Buy
+39
New +$2.36K ﹤0.01% 3248
2018
Q1 		– Sell
-199
Closed -$9K – 3724
2017
Q4 		$9K Sell
199
-1,092
-85% -$44.6K ﹤0.01% 2619
2017
Q3 		$57K Buy
+1,291
New +$44.9K ﹤0.01% 1841
2017
Q1 		– Sell
-100
Closed -$2K – 3745
2016
Q4 		$2K Sell
100
-1,813
-95% -$38.9K ﹤0.01% 3449
2016
Q3 		$42K Buy
1,913
+345
+22% +$7.37K ﹤0.01% 1237
2016
Q2 		$28K Buy
+1,568
New +$27.1K ﹤0.01% 1979
2015
Q4 		– Sell
-3,267
Closed -$62K – 4942
2015
Q3 		$62K Buy
3,267
+589
+22% +$12.6K 0.01% 872
2015
Q2 		$61K Buy
+2,678
New +$62.4K 0.01% 1210
2015
Q1 		– Sell
-3,337
Closed -$97K – 4825
2014
Q4 		$97K Buy
3,337
+2,464
+282% +$66.8K 0.01% 683
2014
Q3 		$23K Buy
873
+440
+102% +$10.5K ﹤0.01% 2190
2014
Q2 		$9K Sell
433
-24
-5% -$552 ﹤0.01% 2450
2014
Q1 		$12K Sell
457
-259
-36% -$7.56K ﹤0.01% 2437
2013
Q4 		$22K Sell
716
-141
-16% -$3.62K ﹤0.01% 2227
2013
Q3 		$24K Buy
+857
New +$23.4K ﹤0.01% 2544

Other funds holding QDEL

BlackRock
BlackRock New York $5.72T AUM 30.48% 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

Tower Research Capital (TRC)'s QDEL Position: Q1 2026 in Review

Tower Research Capital (TRC) increased its QuidelOrtho (QDEL) stake by 178% in Q1 2026, buying an estimated $94K and bringing the position to 5,973 shares worth $98.1K. The position accounts for ﹤0.01% of the portfolio, ranked #2206.

Tower Research Capital (TRC) first reported a position in QDEL in Q3 2013 and has held it in 41 quarters since. The position peaked at $2.68M in Q2 2024. 237 funds tracked by Wall St. Rank hold QDEL as of Q1 2026.

  • Tower Research Capital (TRC) held 5,973 shares of QuidelOrtho worth $98.1K as of Q1 2026.
  • Tower Research Capital (TRC) bought 3,827 QuidelOrtho shares in Q1 2026, an estimated $94K.
  • QuidelOrtho made up ﹤0.01% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #2206 holding.
  • Tower Research Capital (TRC) first reported a position in QuidelOrtho in Q3 2013 and has held it in 41 quarters since.
  • Tower Research Capital (TRC)'s QuidelOrtho position peaked at $2.68M in Q2 2024.
  • 237 funds tracked by Wall St. Rank held QuidelOrtho as of Q1 2026.

Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.