QUIDELORTHO CORP (QDEL) Institutional Shareholders
QUIDELORTHO CORP (QDEL) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.45B in QDEL holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of QDEL tracked by InsiderSet, reporting ownership valued at approximately $196.21M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $120.65M, representing an estimated loss of -38.51% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 59% of the total disclosed QDEL value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Fmr Llc, Newtyn Management, Llc, and several other long-term asset managers with concentrated positions in QUIDELORTHO CORP (QDEL).
This page ranks the largest institutional QDEL shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
235
Total Reported Value
$1.45B
Largest Holder
Blackrock, Inc.
Largest Position
$196.21M
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
70
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 11,202,523 | $196,212,191 | $120,651,173 | -$75,561,018 | -38.51% | |
| Fmr Llc | 0.01% | 7,363,696 | $128,975,131 | $79,307,006 | -$49,668,125 | -38.51% | |
| Newtyn Management, Llc | 14.49% | 6,625,000 | $116,036,875 | $71,351,250 | -$44,685,625 | -38.51% | |
| Vanguard Portfolio Management Llc | 0.00% | 4,135,464 | $72,432,652 | $44,538,947 | -$27,893,705 | -38.51% | |
| Neuberger Berman Group Llc | 0.04% | 3,534,619 | $62,122,614 | $38,067,847 | -$24,054,767 | -38.72% | |
| Invesco Ltd. | 0.00% | 3,473,432 | $60,837,162 | $37,408,863 | -$23,428,299 | -38.51% | |
| American Century Companies Inc | 0.03% | 3,307,079 | $57,923,489 | $35,617,241 | -$22,306,248 | -38.51% | |
| Rubric Capital Management Lp | 0.53% | 3,306,281 | $57,909,512 | $35,608,646 | -$22,300,866 | -38.51% | |
| Vanguard Capital Management Llc | 0.00% | 3,070,054 | $53,771,996 | $33,064,482 | -$20,707,514 | -38.51% | |
| State Street Corp | 0.00% | 2,978,639 | $52,170,862 | $32,079,942 | -$20,090,920 | -38.51% | |
| Paradigm Capital Management Inc/Ny | 1.20% | 2,521,700 | $44,167,576 | $27,158,709 | -$17,008,867 | -38.51% | |
| Private Management Group Inc | 0.96% | 2,070,391 | $36,262,907 | $22,298,111 | -$13,964,796 | -38.51% | |
| Geode Capital Management, Llc | 0.00% | 1,834,237 | $32,132,708 | $19,754,732 | -$12,377,976 | -38.52% | |
| T. Rowe Price Investment Management, Inc. | 0.02% | 1,743,563 | $30,539,000 | $18,778,174 | -$11,760,826 | -38.51% | |
| Morgan Stanley | 0.00% | 1,675,525 | $29,346,832 | $18,045,404 | -$11,301,428 | -38.51% | |
| Segall Bryant & Hamill, Llc | 0.28% | 1,345,530 | $23,566,958 | $14,491,358 | -$9,075,600 | -38.51% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,253,683 | $21,961,938 | $13,502,166 | -$8,459,772 | -38.52% | |
| Allianz Asset Management Gmbh | 0.02% | 1,126,225 | $19,725,831 | $12,129,443 | -$7,596,388 | -38.51% | |
| Goldman Sachs Group Inc | 0.00% | 1,064,744 | $18,648,991 | $11,467,293 | -$7,181,698 | -38.51% | |
| Rice Hall James & Associates, Llc | 0.91% | 1,063,559 | $18,628,236 | $11,454,530 | -$7,173,706 | -38.51% | |
| Gagnon Securities Llc | 3.48% | 1,030,371 | $18,046,948 | $11,097,096 | -$6,949,852 | -38.51% | |
| Charles Schwab Investment Management Inc | 0.00% | 1,018,104 | $17,832,105 | $10,964,980 | -$6,867,125 | -38.51% | |
| Aqr Capital Management Llc | 0.01% | 911,115 | $15,958,180 | $9,812,709 | -$6,145,471 | -38.51% | |
| Buckley Capital Advisors, Llc | 9.26% | 850,335 | $14,893,618 | $9,158,108 | -$5,735,510 | -38.51% | |
| Northern Trust Corp | 0.00% | 751,078 | $13,155,130 | $8,089,110 | -$5,066,020 | -38.51% | |
| Millennium Management Llc | 0.01% | 722,480 | $12,654,237 | $7,781,110 | -$4,873,127 | -38.51% | |
| Van Lanschot Kempen Investment Management N.V. | 0.09% | 647,069 | $11,333,414 | $6,968,933 | -$4,364,481 | -38.51% | |
| Ubs Group Ag | 0.00% | 570,926 | $9,999,769 | $6,148,873 | -$3,850,896 | -38.51% | |
| Gem Investment Advisors, Llc | 6.08% | 565,998 | $9,913,455 | $6,095,798 | -$3,817,657 | -38.51% | |
| Skylands Capital, Llc | 1.21% | 560,414 | $9,818,453 | $6,035,659 | -$3,782,794 | -38.53% | |
| Vanguard Fiduciary Trust Co | 0.00% | 451,917 | $7,915,326 | $4,867,146 | -$3,048,180 | -38.51% | |
| Bank Of New York Mellon Corp | 0.00% | 440,774 | $7,720,148 | $4,747,136 | -$2,973,012 | -38.51% | |
| Thompson Siegel & Walmsley Llc | 0.13% | 420,815 | $7,371,000 | $4,532,178 | -$2,838,822 | -38.51% | |
| Bridgeway Capital Management, Llc | 0.12% | 399,089 | $6,990,044 | $4,298,189 | -$2,691,855 | -38.51% | |
| Aristotle Capital Boston, Llc | 0.41% | 350,145 | $6,132,798 | $3,771,062 | -$2,361,736 | -38.51% | |
| Principal Financial Group Inc | 0.00% | 329,580 | $5,772,594 | $3,549,577 | -$2,223,017 | -38.51% | |
| Lightrock Netherlands B.V. | 1.00% | 290,547 | $5,088,930 | $3,129,191 | -$1,959,739 | -38.51% | |
| D. E. Shaw & Co., Inc. | 0.00% | 270,233 | $4,733,131 | $2,910,409 | -$1,822,722 | -38.51% | |
| Empowered Funds, Llc | 0.02% | 267,989 | $4,693,827 | $2,886,242 | -$1,807,585 | -38.51% | |
| Gamco Investors, Inc. Et Al | 0.04% | 251,235 | $4,400,381 | $2,705,801 | -$1,694,580 | -38.51% | |
| Ameriprise Financial Inc | 0.00% | 242,714 | $4,251,136 | $2,614,030 | -$1,637,106 | -38.51% | |
| Gagnon Advisors, Llc | 2.69% | 241,097 | $4,222,814 | $2,596,615 | -$1,626,199 | -38.51% | |
| Susquehanna Portfolio Strategies, Llc | 0.07% | 240,074 | $4,204,896 | $2,585,597 | -$1,619,299 | -38.51% | |
| Public Sector Pension Investment Board | 0.01% | 234,277 | $4,103,362 | $2,523,163 | -$1,580,199 | -38.51% | |
| Edgestream Partners, L.P. | 0.12% | 226,547 | $3,967,971 | $2,439,911 | -$1,528,060 | -38.51% | |
| Nuveen, Llc | 0.00% | 220,735 | $3,866,173 | $2,377,316 | -$1,488,857 | -38.51% | |
| Tudor Investment Corp Et Al | 0.01% | 194,953 | $3,414,602 | $2,099,644 | -$1,314,958 | -38.51% | |
| Sei Investments Co | 0.00% | 185,272 | $3,245,252 | $1,995,379 | -$1,249,873 | -38.51% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 196,961 | $3,236,068 | $2,121,270 | -$1,114,798 | -34.45% | |
| Ayal Capital Advisors Ltd | 1.61% | 180,000 | $3,152,700 | $1,938,600 | -$1,214,100 | -38.51% |
Frequently asked questions about QDEL
Who owns the most QDEL stock?
The largest holders of QDEL are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for QUIDELORTHO CORP (QDEL).
Is QDEL widely held by superinvestors?
Many widely followed stocks like QDEL appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly QDEL is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.