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Quest Diagnostics

1,051 hedge funds and large institutions have $20B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 347 increasing their positions, 373 reducing their positions, and 89 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: $ → $

0% more funds holding

Funds holding: 1,0461,051 (+5)

7% less repeat investments, than reductions

Existing positions increased: 347 | Existing positions reduced: 373

2.74% less ownership

Funds ownership: 95.54%92.8% (-2.7%)

Holders
1,051
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
Public Sector Pension Investment Board (PSP Investments)
276
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$3.45M
OAM
277
Ostrum Asset Management
France
$3.41M
MNA
278
Manning & Napier Advisors
New York
$3.41M
Ensign Peak Advisors
279
Ensign Peak Advisors
Utah
$3.41M
VPIM
280
Vanguard Personalized Indexing Management
California
$3.37M
BG
281
Bahl & Gaynor
Ohio
$3.36M
PFSRSONJ
282
Police & Firemen's Retirement System of New Jersey
New Jersey
$3.36M
Allspring Global Investments
283
Allspring Global Investments
North Carolina
$3.29M
Osaic Holdings
284
Osaic Holdings
Arizona
$3.27M
OA
285
Oak Associates
Ohio
$3.25M
Nisa Investment Advisors
286
Nisa Investment Advisors
Missouri
$3.24M
RIM
287
Rakuten Investment Management
Japan
$3.23M
NYLIM
288
New York Life Investment Management
New York
$3.22M
Baird Financial Group
289
Baird Financial Group
Wisconsin
$3.2M
JIC
290
Johnson Investment Counsel
Ohio
$3.18M
Thrivent Financial for Lutherans
291
Thrivent Financial for Lutherans
Minnesota
$3.17M
SMDAM
292
Sumitomo Mitsui DS Asset Management
Japan
$3.15M
CTA
293
Colonial Trust Advisors
South Carolina
$3.04M
NEI
294
Northwest & Ethical Investments
Ontario, Canada
$3.01M
IG
295
ING Group
Netherlands
$3.01M
STA
296
Summit Trail Advisors
New York
$3.01M
BCIM
297
British Columbia Investment Management
British Columbia, Canada
$3M
GSC
298
G&S Capital
Colorado
$3M
NIM
299
NEOS Investment Management
Connecticut
$2.96M
MML Investors Services
300
MML Investors Services
Massachusetts
$2.93M