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Quest Diagnostics

1,048 hedge funds and large institutions have $18.4B invested in Quest Diagnostics in 2025 Q4 according to their latest regulatory filings, with 148 funds opening new positions, 350 increasing their positions, 345 reducing their positions, and 90 closing their positions.

New
Increased
Maintained
Reduced
Closed

64% more first-time investments, than exits

New positions opened: 148 | Existing positions closed: 90

30% more call options, than puts

Call options by funds: $74.8M | Put options by funds: $57.4M

4% more funds holding

Funds holding: 1,0051,048 (+43)

1.7% more ownership

Funds ownership: 93.86%95.55% (+1.7%)

1% more repeat investments, than reductions

Existing positions increased: 350 | Existing positions reduced: 345

8% less capital invested

Capital invested by funds: $20B → $18.4B (-$1.56B)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
1,048
Holders Change
+43
Holders Change %
+4.28%
% of All Funds
12.75%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.02%
New
148
Increased
350
Reduced
345
Closed
90
Calls
$74.8M
Puts
$57.4M
Net Calls
+$17.5M
Net Calls Change
+$31.2M
Name Holding Trade Value Shares
Change
Change in
Stake
Ameriprise
26
Ameriprise
Minnesota
$141M -$7.17M -39,372 -5%
Charles Schwab
27
Charles Schwab
California
$130M +$729K +4,003 +0.5%
Legal & General Group
28
Legal & General Group
United Kingdom
$129M -$2.31M -12,701 -2%
Qube Research & Technologies (QRT)
29
Qube Research & Technologies (QRT)
United Kingdom
$127M +$37.1M +203,656 +38%
Bank of New York Mellon
30
Bank of New York Mellon
New York
$116M -$27.5M -150,839 -18%
DekaBank Deutsche Girozentrale
31
DekaBank Deutsche Girozentrale
Germany
$114M
AllianceBernstein
32
AllianceBernstein
Tennessee
$110M -$431K -2,366 -0.4%
Deutsche Bank
33
Deutsche Bank
Germany
$106M +$15.5M +84,935 +16%
Squarepoint
34
Squarepoint
New York
$98.2M -$13M -71,492 -11%
Principal Financial Group
35
Principal Financial Group
Iowa
$92.2M -$580K -3,184 -0.6%
CIC
36
Crawford Investment Counsel
Georgia
$86.2M +$376K +2,067 +0.4%
Amundi
37
Amundi
France
$80.5M +$6.67M +36,610 +9%
Raymond James Financial
38
Raymond James Financial
Florida
$80.4M +$955K +5,245 +1%
AIM
39
Artemis Investment Management
United Kingdom
$79.9M +$5.3M +29,084 +7%
Pacer Advisors
40
Pacer Advisors
Pennsylvania
$77.7M -$577K -3,171 -0.7%
Citadel Advisors
41
Citadel Advisors
Florida
$73.8M +$53.6M +294,622 +226%
First Trust Advisors
42
First Trust Advisors
Illinois
$61M -$3.61M -19,839 -5%
California Public Employees Retirement System
43
California Public Employees Retirement System
California
$60.8M +$2.05M +11,268 +3%
WP
44
Woodline Partners
California
$59.2M +$40.8M +223,936 +191%
N
45
Nuveen
North Carolina
$58M -$767K -4,213 -1%
Envestnet Asset Management
46
Envestnet Asset Management
Illinois
$57.9M -$8.08M -44,368 -12%
Barclays
47
Barclays
United Kingdom
$57.8M +$15M +82,170 +33%
D.E. Shaw & Co
48
D.E. Shaw & Co
New York
$57M +$59.9M +328,734 New
Canada Life
49
Canada Life
Manitoba, Canada
$55.4M -$22.5M -123,368 -28%
ACM
50
Advisors Capital Management
New Jersey
$54.5M +$2.95M +16,194 +5%