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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
GSC
301
G&S Capital
Colorado
$3M
NIM
302
NEOS Investment Management
Connecticut
$2.96M
MML Investors Services
303
MML Investors Services
Massachusetts
$2.93M
SCM
304
Sandler Capital Management
New York
$2.93M
LBC
305
Lowe Brockenbrough & Co
Virginia
$2.9M
AC
306
Allstate Corporation
Illinois
$2.9M
SP
307
Stablepoint Partners
Massachusetts
$2.87M
NAM
308
Nissay Asset Management
Japan
$2.86M
BO
309
Bank OZK
Arkansas
$2.86M
Cambridge Investment Research Advisors
310
Cambridge Investment Research Advisors
Iowa
$2.84M
TA
311
TKG Advisors
Indiana
$2.81M
HI
312
Horizon Investments
North Carolina
$2.79M
Macquarie Group
313
Macquarie Group
Australia
$2.77M
MR
314
Munich Reinsurance
$2.77M
CCM
315
Coldstream Capital Management
Washington
$2.73M
MWM
316
Marion Wealth Management
Pennsylvania
$2.73M
Carson Wealth (CWM LLC)
317
Carson Wealth (CWM LLC)
Nebraska
$2.7M
SIA
318
Sit Investment Associates
Minnesota
$2.67M
FNA
319
First National Advisers
Nebraska
$2.67M
CCA
320
Catalyst Capital Advisors
New York
$2.63M
FF
321
Farrow Financial
Vermont
$2.61M
M&T Bank
322
M&T Bank
New York
$2.59M
YIH
323
Y-Intercept (HK)
Hong Kong
$2.58M
CT
324
Caldwell Trust
Florida
$2.53M
UM
325
UniSuper Management
Australia
$2.53M