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Quest Diagnostics

1,061 hedge funds and large institutions have $20.1B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 349 increasing their positions, 380 reducing their positions, and 87 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

1% more funds holding

Funds holding: 1,0471,061 (+14)

8% less repeat investments, than reductions

Existing positions increased: 349 | Existing positions reduced: 380

2.22% less ownership

Funds ownership: 95.54%93.32% (-2.2%)

Holders
1,061
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$96.9M
Puts
$40.5M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
WA
276
Wasatch Advisors
Utah
$3.47M
AM
277
AGF Management
Ontario, Canada
$3.46M
Bank of Nova Scotia
278
Bank of Nova Scotia
Ontario, Canada
$3.45M
Public Sector Pension Investment Board (PSP Investments)
279
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$3.45M
OAM
280
Ostrum Asset Management
France
$3.41M
MNA
281
Manning & Napier Advisors
New York
$3.41M
Ensign Peak Advisors
282
Ensign Peak Advisors
Utah
$3.41M
VPIM
283
Vanguard Personalized Indexing Management
California
$3.37M
BG
284
Bahl & Gaynor
Ohio
$3.36M
PFSRSONJ
285
Police & Firemen's Retirement System of New Jersey
New Jersey
$3.36M
Allspring Global Investments
286
Allspring Global Investments
North Carolina
$3.29M
Osaic Holdings
287
Osaic Holdings
Arizona
$3.27M
OA
288
Oak Associates
Ohio
$3.25M
Nisa Investment Advisors
289
Nisa Investment Advisors
Missouri
$3.24M
RIM
290
Rakuten Investment Management
Japan
$3.23M
NYLIM
291
New York Life Investment Management
New York
$3.22M
Baird Financial Group
292
Baird Financial Group
Wisconsin
$3.2M
JIC
293
Johnson Investment Counsel
Ohio
$3.18M
Thrivent Financial for Lutherans
294
Thrivent Financial for Lutherans
Minnesota
$3.17M
SMDAM
295
Sumitomo Mitsui DS Asset Management
Japan
$3.15M
CTA
296
Colonial Trust Advisors
South Carolina
$3.04M
NEI
297
Northwest & Ethical Investments
Ontario, Canada
$3.01M
IG
298
ING Group
Netherlands
$3.01M
STA
299
Summit Trail Advisors
New York
$3.01M
BCIM
300
British Columbia Investment Management
British Columbia, Canada
$3M