QUIDEL CORP - COMMON STOCK (QDEL)

CUSIP: 74838J101

Q4 2021 13F Holders as of 31 Dec 2021

Share change
+737,995
Put/Call ratio
95%
SEC-reported price per share
$134.99
Number of holders
344
Value change
+$94,270,370
Number of buys
167
Open additional details 1 more signal available
Number of sells
139

Security key

74838J101

Report period

Q4 2021

Institutions

344

Top holders

10

Ownership snapshot

Top reported holders of QDEL - QUIDEL CORP - COMMON STOCK (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
PRICE T ROWE ASSOCIATES I...
Disclosed value leader
PRICE T ROWE ASSOCIATES I...
Comparable rows
0/15
Latest evidence
30 Sep 2021
13F Highest disclosed value: $901,859,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

PRICE T ROWE ASSOCIATES INC /MD/ has the largest disclosed position value at $901.86M.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens PRICE T ROWE ASSOCIATES INC /MD/'s linked filing trail.
Disclosed position value Top 5
PRICE T ROWE ASSOCIATES INC /MD/ $901.86M
VANGUARD GROUP INC $491.25M
BlackRock Finance, Inc. $460.69M
BROWN CAPITAL MANAGEMENT LLC $376.38M
WELLINGTON MANAGEMENT GROUP LLP $244.87M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
PRICE T ROWE ASSOCIATES INC /MD/
13F
Company
13F
class O/S missing
$901,859,000
6,389,366 shares
30 Sep 2021
VANGUARD GROUP INC
13F
Company
13F
class O/S missing
$491,247,000
3,480,323 shares
30 Sep 2021
BlackRock Finance, Inc.
13F
Company
13F
class O/S missing
$460,693,000
3,263,857 shares
30 Sep 2021
BROWN CAPITAL MANAGEMENT LLC
13F
Company
13F
class O/S missing
$376,384,000
2,666,553 shares
30 Sep 2021
WELLINGTON MANAGEMENT GROUP LLP
13F
Company
13F
class O/S missing
$244,871,000
1,734,826 shares
30 Sep 2021
FRED ALGER MANAGEMENT, LLC
13F
Company
13F
class O/S missing
$231,767,000
1,641,988 shares
30 Sep 2021
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
344
Shares
36,921,975
Rows available
344
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2021 vs Q3 2021 Across Filers

Q3 2021 holders
301
Q4 2021 holders
344
Holder diff
43
Investor Q3 2021 Shares Q4 2021 Shares Share Diff Share Chg % Q3 2021 value Q4 2021 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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