We are live on ! Find out more
DGX icon

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
AI
1076
Atom Investors
Texas
– -$4.17M -24,043 Closed
Verition Fund Management
1077
Verition Fund Management
Connecticut
– -$3.95M -22,766 Closed
A
1078
AlphaQuest
New York
– -$3.85M -22,173 Closed
QT
1079
Quantbot Technologies
New York
– -$3.74M -21,544 Closed
FAF
1080
Första AP-fonden
Sweden
– -$3.64M -21,000 Closed
DM
1081
Deerfield Management
New York
– -$3.19M -18,392 Closed
ACM
1082
Aquatic Capital Management
Illinois
– -$3.15M -18,178 Closed
DTL
1083
Dynamic Technology Lab
Singapore
– -$2.92M -16,840 Closed
EGM
1084
Engineers Gate Manager
New York
– -$2.52M -14,526 Closed
ET
1085
Entropy Technologies
New York
– -$1.97M -11,380 Closed
MC
1086
Machina Capital
France
– -$1.84M -10,613 Closed
FRM
1087
Fox Run Management
Connecticut
– -$1.68M -9,690 Closed
TM
1088
Taproot Management
New York
– -$1.66M -9,594 Closed
SM
1089
Sciencast Management
New Jersey
– -$1.32M -7,588 Closed
OTL
1090
Oak Thistle LLC
New York
– -$1.24M -7,132 Closed
PCM
1091
Prelude Capital Management
New York
– -$1.19M -6,886 Closed
PCM
1092
Polymer Capital Management
New York
– -$1.18M -6,817 Closed
QCM
1093
Qsemble Capital Management
New York
– -$1.15M -6,645 Closed
PS
1094
Pensionfund Sabic
Netherlands
– -$1.11M -6,400 Closed
VI
1095
Versor Investments
New York
– -$951K -5,482 Closed
GPFA
1096
Game Plan Financial Advisors
Ohio
– -$926K -5,338 Closed
ECM
1097
ExodusPoint Capital Management
New York
– -$833K -4,802 Closed
LAM
1098
LECAP Asset Management
United Kingdom
– -$780K -4,497 Closed
HSA
1099
Hussman Strategic Advisors
Maryland
– -$729K -4,200 Closed
Lido Advisors
1100
Lido Advisors
California
– -$739K -3,914 Closed
42 43
44
45 46

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.