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Quest Diagnostics
DGX

1,067 hedge funds and large institutions have $20.1B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 123 funds opening new positions, 351 increasing their positions, 381 reducing their positions, and 88 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: 2 → 4 (+2)

40% more first-time investments, than exits

New positions opened: 123 | Existing positions closed: 88

9% more capital invested

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

2% more funds holding

Funds holding: 1,050 → 1,067 (+17)

8% less repeat investments, than reductions

Existing positions increased: 351 | Existing positions reduced: 381

2.21% less ownership

Funds ownership: 95.56% → 93.34% (-2.2%)

Holders
1,067
Holders Change
+17
Holders Change %
+1.62%
% of All Funds
13.06%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
123
Increased
351
Reduced
381
Closed
88
Calls
$96.9M
Puts
$40.5M
Net Calls
+$56.4M
Net Calls Change
+$39M

Top Buyers

Rank Fund Capital Flow
1
EIG
EdgePoint Investment Group
Ontario, Canada
+$113M
2
MDSL
M.D. Sass LLC
New York
+$58.2M
3
WP
Woodline Partners
California
+$49M
4
CCMG
Clark Capital Management Group
Pennsylvania
+$45.7M
5
Barclays
Barclays
United Kingdom
+$45.1M

Top Sellers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
-$80.1M
2
Goldman Sachs
Goldman Sachs
New York
-$70M
3
FMI
Fiduciary Management Inc
Wisconsin
-$63.3M
4
FGP
Freestone Grove Partners
California
-$59M
5
JP Morgan Chase
JP Morgan Chase
New York
-$58.2M
Name Holding Trade Value Shares
Change 		Change in
Stake
SVCP
976
Silicon Valley Capital Partners
California
$9.17K – – –
BCWM
977
Bartlett & Co Wealth Management
Ohio
$8.81K – – –
KAS
978
Kemnay Advisory Services
New York
$8.62K +$8.55K +44 New
EI
979
EFG International
$8.43K +$8.36K +43 New
SEP
980
Signature Equity Partners
Ohio
$8.26K +$4.27K +22 +110%
DJSG
981
D.J. St. Germain
Massachusetts
$8.04K – – –
ACM
982
Anfield Capital Management
California
$7.84K – – –
MCA
983
McGuire Capital Advisors
Oklahoma
$7.84K – – –
BW
984
Basepoint Wealth
Iowa
$7.84K +$7.77K +40 New
WIM
985
Westside Investment Management
California
$7.72K – – –
AFC
986
Ares Financial Consulting
California
$7.51K – – –
CHC
987
City Holding Co
West Virginia
$7.45K – – –
SA
988
Scarborough Advisors
Maryland
$7.25K – – –
PSFG
989
Park Square Financial Group
Georgia
$6.86K +$6.8K +35 New
EWP
990
Elevation Wealth Partners
California
$6.66K -$9.91K -51 -60%
FCAS
991
First Command Advisory Services
Texas
$6.66K +$4.27K +22 +183%
CMA
992
Cedar Mountain Advisors
Oregon
$6.47K – – –
HAP
993
Harbor Asset Planning
Massachusetts
$6.3K – – –
CIAS
994
CBIZ Investment Advisory Services
Ohio
$6.08K -$2.53K -13 -30%
HNW
995
High Note Wealth
Minnesota
$6.08K – – –
CBT
996
Crews Bank & Trust
Florida
$6.08K +$6.02K +31 New
CTC
997
Cetera Trust Company
Minnesota
$5.88K – – –
TFM
998
TFC Financial Management
Massachusetts
$5.68K – – –
PB
999
Prosperity Bancshares
Texas
$5.29K – – –
BOJHT
1000
Bank of Jackson Hole Trust
Wyoming
$5.09K – – –
38 39
40
41 42

DGX Hedge Fund Activity: Q1 2026 in Review

1,067 of the 8,172 institutional investors tracked by Wall St. Rank reported a position in Quest Diagnostics (DGX) for Q1 2026, worth a combined $20.1B — up 9.1% from $18.4B a quarter earlier.

Buyers outnumbered sellers: 123 funds opened new DGX positions and 88 closed out — a net gain of 35 holders — while 351 added to existing stakes and 381 trimmed.

The largest buyer was EdgePoint Investment Group, adding an estimated $113M. The largest seller was UBS Group, cutting an estimated $80.1M.

  • 1,067 institutional investors held Quest Diagnostics (DGX) as of Q1 2026, up from 1,050 in Q4 2025.
  • Funds reported $20.1B of Quest Diagnostics stock for Q1 2026, up 9.1% quarter-over-quarter.
  • 123 funds opened new Quest Diagnostics positions in Q1 2026 and 88 closed out, a net change of +35 holders.
  • The largest Quest Diagnostics buyer in Q1 2026 was EdgePoint Investment Group, an estimated $113M added.
  • The largest Quest Diagnostics seller in Q1 2026 was UBS Group, an estimated $80.1M sold.

Based on aggregated 13F filings for Q1 2026.