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Quest Diagnostics

1,062 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, 381 reducing their positions, and 87 closing their positions.

New
Increased
Maintained
Reduced
Closed

139% more call options, than puts

Call options by funds: $96.9M | Put options by funds: $40.5M

100% more funds holding in top 10

Funds holding in top 10: 24 (+2)

39% more first-time investments, than exits

New positions opened: 121 | Existing positions closed: 87

9% more capital invested

Capital invested by funds: $18.4B → $20.1B (+$1.67B)

1% more funds holding

Funds holding: 1,0481,062 (+14)

8% less repeat investments, than reductions

Existing positions increased: 349 | Existing positions reduced: 381

2.22% less ownership

Funds ownership: 95.55%93.33% (-2.2%)

Holders
1,062
Holders Change
+14
Holders Change %
+1.34%
% of All Funds
13.08%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
121
Increased
349
Reduced
381
Closed
87
Calls
$96.9M
Puts
$40.5M
Net Calls
+$56.4M
Net Calls Change
+$39M
Name Holding Trade Value Shares
Change
Change in
Stake
GSC
301
G&S Capital
Colorado
$3M +$34.8K +179 +1%
NIM
302
NEOS Investment Management
Connecticut
$2.96M +$2.48M +12,749 +540%
MML Investors Services
303
MML Investors Services
Massachusetts
$2.93M +$1.19M +6,145 +70%
SCM
304
Sandler Capital Management
New York
$2.93M +$2.91M +14,955 New
LBC
305
Lowe Brockenbrough & Co
Virginia
$2.9M -$88.4K -455 -3%
AC
306
Allstate Corporation
Illinois
$2.9M +$1.18M +6,094 +70%
SP
307
Stablepoint Partners
Massachusetts
$2.87M -$27K -139 -0.9%
NAM
308
Nissay Asset Management
Japan
$2.86M +$26.8K +138 +1%
BO
309
Bank OZK
Arkansas
$2.86M +$41.6K +214 +1%
Cambridge Investment Research Advisors
310
Cambridge Investment Research Advisors
Iowa
$2.84M +$200K +1,028 +8%
TA
311
TKG Advisors
Indiana
$2.81M -$63.5K -327 -2%
HI
312
Horizon Investments
North Carolina
$2.79M -$129K -664 -4%
Macquarie Group
313
Macquarie Group
Australia
$2.77M -$295K -1,517 -10%
MR
314
Munich Reinsurance
$2.77M +$2.75M +14,136 New
CCM
315
Coldstream Capital Management
Washington
$2.73M -$587K -3,019 -18%
MWM
316
Marion Wealth Management
Pennsylvania
$2.73M +$86.1K +443 +3%
Carson Wealth (CWM LLC)
317
Carson Wealth (CWM LLC)
Nebraska
$2.7M -$1.01M -5,178 -27%
SIA
318
Sit Investment Associates
Minnesota
$2.67M -$966K -4,970 -27%
FNA
319
First National Advisers
Nebraska
$2.67M -$36.3K -187 -1%
CCA
320
Catalyst Capital Advisors
New York
$2.63M -$117K -600 -4%
FF
321
Farrow Financial
Vermont
$2.61M -$69.6K -358 -3%
M&T Bank
322
M&T Bank
New York
$2.59M -$345K -1,774 -12%
YIH
323
Y-Intercept (HK)
Hong Kong
$2.58M -$3.26M -16,759 -56%
P
324
PensionDanmark
Denmark
$2.55M -$85.5K -440 -3%
CT
325
Caldwell Trust
Florida
$2.53M +$391K +2,010 +18%