Company · Ownership research

QuidelOrtho Corp QDEL

CIK 0001906324 · CUSIP 219798105

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 219798105 (QDEL), not CUSIP 219798905 (QDEL), CUSIP 219798955 (QDEL), CUSIP 74838J101 (QDEL), and does not merge CUSIPs.

This page lists the top 20 of 266 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$400.31M 11,447,188 shares	0.26%	+208.36K(+1.90%)Added	SEC filing ↗ May 14, 2025	▾
02	BlackRock, Inc. CIK 2012383 · View history	$286.49M 8,192,533 shares	0.01%	-247.88K(-2.90%)Reduced	SEC filing ↗ May 2, 2025	▾
03	VANGUARD GROUP INC CIK 102909 · View history	$236.10M 6,751,611 shares	0.00%	-65.80K(-1.00%)Reduced	SEC filing ↗ May 9, 2025	▾
04	Rubric Capital Management LP CIK 1687509 · View history	$214.72M 6,140,000 shares	3.85%	+590.00K(+10.60%)Added	SEC filing ↗ May 14, 2025	▾
05	Invesco Ltd. CIK 914208 · View history	$133.37M 3,813,833 shares	0.03%	+366.39K(+10.60%)Added	SEC filing ↗ May 12, 2025	▾
06	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$90.13M 2,655,576 shares	0.09%	+1.85M(+230.30%)Added	SEC filing ↗ May 15, 2025	▾
07	STATE STREET CORP CIK 93751 · View history	$76.61M 2,190,649 shares	0.00%	-83.38K(-3.70%)Reduced	SEC filing ↗ May 15, 2025	▾
08	ArrowMark Colorado Holdings LLC CIK 1483859 · View history	$66.19M 1,892,735 shares	1.07%	-84.96K(-4.30%)Reduced	SEC filing ↗ May 15, 2025	▾
09	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$63.56M 1,817,467 shares	0.02%	+600.34K(+49.30%)Added	SEC filing ↗ May 13, 2025	▾
10	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$55.55M 1,588,645 shares	0.03%	+473.09K(+42.40%)Added	SEC filing ↗ May 13, 2025	▾
11	JPMORGAN CHASE & CO CIK 19617 · View history	$55.04M 1,573,863 shares	0.00%	+167.21K(+11.90%)Added	SEC filing ↗ May 12, 2025	▾
12	MORGAN STANLEY CIK 895421 · View history	$49.39M 1,412,306 shares	0.00%	+713.33K(+102.10%)Added	SEC filing ↗ May 15, 2025	▾
13	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$46.97M 1,343,025 shares	0.06%	-385.59K(-22.30%)Reduced	SEC filing ↗ May 15, 2025	▾
14	FMR LLC CIK 315066 · Amended · View history	$45.17M 1,291,589 shares	0.00%	+6.48K(+0.50%)Added	SEC filing ↗ Nov 5, 2026	▾
15	SEGALL BRYANT & HAMILL, LLC CIK 1006378 · View history	$45.07M 1,288,718 shares	0.69%	+242.07K(+23.10%)Added	SEC filing ↗ May 2, 2025	▾
16	Newtyn Management, LLC CIK 1569241 · View history	$42.49M 1,215,000 shares	6.72%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
17	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$40.19M 1,148,900 shares	0.00%	+65.44K(+6.00%)Added	SEC filing ↗ May 13, 2025	▾
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history	$28.99M 829,119 shares	0.01%	-52.42K(-5.90%)Reduced	SEC filing ↗ Sep 15, 2025	▾
19	VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. CIK 1367401 · View history	$28.68M 820,203 shares	0.30%	-147.95K(-15.30%)Reduced	SEC filing ↗ May 14, 2025	▾
20	CITADEL ADVISORS LLC CIK 1423053 · View history	$22.73M 649,925 shares	0.02%	-39.70K(-5.80%)Reduced	SEC filing ↗ May 15, 2025	▾

Showing 20 / 266 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

266

Cancelled or null records excluded

Disclosed shares

75,299,055

Not deduplicated across managers

Disclosed value

$2.63B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

QuidelOrtho Corp · Q1 2025

Explore all 266 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.