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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
RGC
351
Roberts, Glore & Co
Illinois
$2.23M -$56.5K -291 -2%
IWC
352
Integrated Wealth Concepts
Massachusetts
$2.23M +$1.81M +9,301 +449%
OAM
353
OP Asset Management
$2.19M -$183K -942 -8%
ZCI
354
Zevenbergen Capital Investments
Washington
$2.17M +$127K +655 +6%
Assenagon Asset Management
355
Assenagon Asset Management
Luxembourg
$2.17M -$2.7M -13,878 -56%
IGAM
356
iA Global Asset Management
Quebec, Canada
$2.15M -$88.2K -454 -4%
PGFC
357
Peapack-Gladstone Financial Corp
New Jersey
$2.15M -$13.6K -70 -0.6%
Public Employees Retirement Association of Colorado
358
Public Employees Retirement Association of Colorado
Colorado
$2.13M
SOADOR
359
State of Alaska Department of Revenue
Alaska
$2.13M -$29.1K -150 -1%
PWA
360
Primoris Wealth Advisors
Florida
$2.11M -$340K -1,750 -14%
HPC
361
HM Payson & Co
Maine
$2.07M -$132K -680 -6%
BFG
362
Bleakley Financial Group
New Jersey
$2.07M +$2.05M +10,559 New
AssetMark Inc
363
AssetMark Inc
California
$2.07M +$112K +579 +6%
Janus Henderson Group
364
Janus Henderson Group
United Kingdom
$2.04M -$689K -3,546 -25%
IMPI
365
Ilmarinen Mutual Pension Insurance
Finland
$2M +$1.98M +10,200 New
DWM
366
Dynasty Wealth Management
Florida
$1.97M -$16.3K -84 -0.8%
AWCI
367
Alpine Woods Capital Investors
New York
$1.96M -$1.83M -9,423 -49%
BMSSC
368
B. Metzler seel. Sohn & Co
Germany
$1.95M +$367K +1,890 +24%
TWM
369
TriaGen Wealth Management
California
$1.92M -$28.4K -146 -1%
BCI
370
Brinker Capital Investments
Pennsylvania
$1.91M +$37.9K +195 +2%
MOS
371
MGO One Seven
Ohio
$1.9M +$102K +524 +6%
EF
372
Empowered Funds
Pennsylvania
$1.88M -$2.99M -15,381 -62%
EWA
373
EverSource Wealth Advisors
Alabama
$1.88M +$709K +3,647 +61%
GLR
374
Great Lakes Retirement
Ohio
$1.87M +$27.8K +143 +2%
HCM
375
Highview Capital Management
Illinois
$1.86M +$133K +683 +8%