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GeneDx Holdings
WGS

286 hedge funds and large institutions have $4.03B invested in GeneDx Holdings in 2025 Q4 according to their latest regulatory filings, with 59 funds opening new positions, 92 increasing their positions, 101 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

55% more first-time investments, than exits

New positions opened: 59 | Existing positions closed: 38

24% more capital invested

Capital invested by funds: $3.24B → $4.03B (+$784M)

9% more funds holding in top 10

Funds holding in top 10: 11 → 12 (+1)

7% more funds holding

Funds holding: 268 → 286 (+18)

2.42% more ownership

Funds ownership: 104.79% → 107.22% (+2.4%)

6% less call options, than puts

Call options by funds: $102M | Put options by funds: $108M

9% less repeat investments, than reductions

Existing positions increased: 92 | Existing positions reduced: 101

Holders
286
Holders Change
+18
Holders Change %
+6.72%
% of All Funds
3.48%
Holding in Top 10
12
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+9.09%
% of All Funds
0.15%
New
59
Increased
92
Reduced
101
Closed
38
Calls
$102M
Puts
$108M
Net Calls
-$5.95M
Net Calls Change
+$36.2M

Top Buyers

1
Westfield Capital Management
Westfield Capital Management
Massachusetts
+$65.1M
2
Franklin Resources
Franklin Resources
California
+$56.5M
3
Fidelity Investments
Fidelity Investments
Massachusetts
+$45.2M
4
Invesco
Invesco
Georgia
+$40.1M
5
UBS AM
UBS AM
Illinois
+$31.2M

Top Sellers

1
William Blair Investment Management
William Blair Investment Management
Illinois
-$56.4M
2
PCM
Pentwater Capital Management
Florida
-$51.5M
3
Jennison Associates
Jennison Associates
New York
-$40.7M
4
Macquarie Group
Macquarie Group
Australia
-$29M
5
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$18.4M
Name Holding Trade Value Shares
Change 		Change in
Stake
CM
1
Corvex Management
New York
$398M – – –
CC
2
Casdin Capital
New York
$391M – – –
BlackRock
3
BlackRock
New York
$203M +$4.26M +31,019 +2%
Goldman Sachs
4
Goldman Sachs
New York
$159M +$7.18M +52,322 +4%
Vanguard Group
5
Vanguard Group
Pennsylvania
$155M +$2.56M +18,647 +2%
Franklin Resources
6
Franklin Resources
California
$142M +$56.5M +411,607 +60%
Westfield Capital Management
7
Westfield Capital Management
Massachusetts
$132M +$65.1M +474,167 +87%
SPPAM
8
Summit Partners Public Asset Management
Massachusetts
$120M +$13.3M +97,020 +12%
OIM
9
Oracle Investment Management
Connecticut
$115M -$727K -5,300 -0.6%
Fidelity Investments
10
Fidelity Investments
Massachusetts
$108M +$45.2M +329,429 +65%
William Blair Investment Management
11
William Blair Investment Management
Illinois
$105M -$56.4M -410,928 -34%
Invesco
12
Invesco
Georgia
$102M +$40.1M +292,394 +59%
AIM
13
ARK Investment Management
Florida
$78.6M +$21.6M +157,582 +35%
ZDA
14
Zweig-DiMenna Associates
New York
$77.8M -$614K -4,475 -0.7%
T. Rowe Price Investment Management
15
T. Rowe Price Investment Management
Maryland
$76M -$18.4M -133,853 -19%
Lord, Abbett & Co
16
Lord, Abbett & Co
New Jersey
$67.4M -$971K -7,073 -1%
Morgan Stanley
17
Morgan Stanley
New York
$65.8M +$5.25M +38,279 +8%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$65.6M +$2.08M +15,170 +3%
Raymond James Financial
19
Raymond James Financial
Florida
$65.5M +$4.09M +29,798 +6%
State Street
20
State Street
Massachusetts
$59.3M +$2.26M +16,452 +4%
T. Rowe Price Associates
21
T. Rowe Price Associates
Maryland
$53.8M +$11.3M +82,583 +25%
DCM
22
Driehaus Capital Management
Illinois
$51.4M -$2.02M -14,707 -4%
Wellington Management Group
23
Wellington Management Group
Massachusetts
$50M -$1.51M -10,981 -3%
NAMA
24
Nikko Asset Management Americas
New York
$49.6M +$12.3M +89,470 +31%
Sumitomo Mitsui Trust Group
25
Sumitomo Mitsui Trust Group
Japan
$49.6M +$12.3M +89,470 +31%
1
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WGS Hedge Fund Activity: Q4 2025 in Review

286 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in GeneDx Holdings (WGS) for Q4 2025, worth a combined $4.03B — up 24% from $3.24B a quarter earlier.

Buyers outnumbered sellers: 59 funds opened new WGS positions and 38 closed out — a net gain of 21 holders — while 92 added to existing stakes and 101 trimmed.

The largest buyer was Westfield Capital Management, adding an estimated $65.1M. The largest seller was William Blair Investment Management, cutting an estimated $56.4M.

  • 286 institutional investors held GeneDx Holdings (WGS) as of Q4 2025, up from 268 in Q3 2025.
  • Funds reported $4.03B of GeneDx Holdings stock for Q4 2025, up 24% quarter-over-quarter.
  • 59 funds opened new GeneDx Holdings positions in Q4 2025 and 38 closed out, a net change of +21 holders.
  • The largest GeneDx Holdings buyer in Q4 2025 was Westfield Capital Management, an estimated $65.1M added.
  • The largest GeneDx Holdings seller in Q4 2025 was William Blair Investment Management, an estimated $56.4M sold.

Based on aggregated 13F filings for Q4 2025.