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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
Allspring Global Investments
301
Allspring Global Investments
North Carolina
$2.83M +$97.8K +537 +3%
IA
302
IFP Advisors
Florida
$2.82M +$726K +3,986 +32%
Ensign Peak Advisors
303
Ensign Peak Advisors
Utah
$2.81M -$4.29M -23,553 -59%
NYLIM
304
New York Life Investment Management
New York
$2.81M -$29.9K -164 -1%
AM
305
AGF Management
Ontario, Canada
$2.8M -$366K -2,011 -11%
JIC
306
Johnson Investment Counsel
Ohio
$2.8M
SMDAM
307
Sumitomo Mitsui DS Asset Management
Japan
$2.8M +$531K +2,918 +22%
UIM
308
USS Investment Management
United Kingdom
$2.79M +$20K +110 +0.7%
Walleye Capital
309
Walleye Capital
New York
$2.79M +$2.91M +16,001 +20,514%
CCIA
310
Campbell & Co Investment Adviser
Maryland
$2.76M +$1.93M +10,609 +201%
RP
311
Riverwater Partners
Wisconsin
$2.73M +$393K +2,160 +16%
CTA
312
Colonial Trust Advisors
South Carolina
$2.73M -$153K -839 -5%
Macquarie Group
313
Macquarie Group
Australia
$2.72M -$46.5M -255,634 -94%
LBC
314
Lowe Brockenbrough & Co
Virginia
$2.64M -$104K -572 -4%
GSC
315
G&S Capital
Colorado
$2.62M -$24.8K -136 -0.9%
M&T Bank
316
M&T Bank
New York
$2.6M +$404K +2,218 +17%
HI
317
Horizon Investments
North Carolina
$2.59M +$52.4K +288 +2%
RIM
318
Rakuten Investment Management
Japan
$2.57M -$1.83M -10,072 -41%
SP
319
Stablepoint Partners
Massachusetts
$2.56M +$2.73K +15 +0.1%
TA
320
TKG Advisors
Indiana
$2.55M +$16.4K +90 +0.6%
EGM
321
Engineers Gate Manager
New York
$2.52M +$1.45M +7,979 +122%
Public Sector Pension Investment Board (PSP Investments)
322
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$2.52M +$843K +4,629 +47%
NAM
323
Nissay Asset Management
Japan
$2.51M +$38.4K +211 +1%
BO
324
Bank OZK
Arkansas
$2.49M -$13.3K -73 -0.5%
MWM
325
Marion Wealth Management
Pennsylvania
$2.44M +$197K +1,082 +9%