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Personalis

104 hedge funds and large institutions have $192M invested in Personalis in 2025 Q1 according to their latest regulatory filings, with 19 funds opening new positions, 43 increasing their positions, 26 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed

65% more repeat investments, than reductions

Existing positions increased: 43 | Existing positions reduced: 26

14% more call options, than puts

Call options by funds: $462K | Put options by funds: $404K

0% more funds holding in top 10

Funds holding in top 10: 44 (0)

10% less first-time investments, than exits

New positions opened: 19 | Existing positions closed: 21

3% less funds holding

Funds holding: 107104 (-3)

10.55% less ownership

Funds ownership: 72.67%62.12% (-11%)

35% less capital invested

Capital invested by funds: $298M → $192M (-$106M)

Holders
104
Holders Change
-3
Holders Change %
-2.8%
% of All Funds
1.39%
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.05%
New
19
Increased
43
Reduced
26
Closed
21
Calls
$462K
Puts
$404K
Net Calls
+$58K
Net Calls Change
+$87K
Name Holding Trade Value Shares
Change
Change in
Stake
MC
1
Merck & Co
New Jersey
$49.3M
LMC
2
Lightspeed Management Company
California
$28.6M
AIM
3
ARK Investment Management
Florida
$25.2M +$1.96M +412,762 +6%
ACM
4
AIGH Capital Management
Maryland
$13.9M +$807K +169,884 +4%
BlackRock
5
BlackRock
New York
$10.5M +$206K +43,352 +1%
Aberdeen Group
6
Aberdeen Group
United Kingdom
$5.98M +$6.69M +1,406,895 +472%
Vanguard Group
7
Vanguard Group
Pennsylvania
$4.53M -$2.11M -444,295 -26%
BWLSA
8
Blue Water Life Science Advisors
California
$4.13M +$202K +42,500 +4%
Renaissance Technologies
9
Renaissance Technologies
New York
$3.63M +$537K +113,086 +12%
Susquehanna International Group
10
Susquehanna International Group
Pennsylvania
$3.33M +$364K +76,671 +9%
Millennium Management
11
Millennium Management
New York
$3.06M -$2.12M -445,784 -34%
Marshall Wace
12
Marshall Wace
United Kingdom
$2.44M +$2.98M +626,276 +895%
Sumitomo Mitsui Trust Group
13
Sumitomo Mitsui Trust Group
Japan
$2.37M -$272K -57,339 -8%
NAMA
14
Nikko Asset Management Americas
New York
$2.37M -$272K -57,339 -8%
Dimensional Fund Advisors
15
Dimensional Fund Advisors
Texas
$2.23M +$1.07M +224,946 +55%
KCM
16
Kennedy Capital Management
Missouri
$2.12M +$2.87M +604,290 New
Morgan Stanley
17
Morgan Stanley
New York
$1.97M +$1.47M +310,209 +124%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$1.81M +$76.4K +16,083 +3%
SOMRS
19
State of Michigan Retirement System
Michigan
$1.73M
WSCM
20
Wellington Shields Capital Management
New York
$1.5M -$23K -4,850 -1%
Qube Research & Technologies (QRT)
21
Qube Research & Technologies (QRT)
United Kingdom
$1.41M +$17.8K +3,755 +0.9%
Jacobs Levy Equity Management
22
Jacobs Levy Equity Management
New Jersey
$1.29M -$102K -21,560 -6%
Acadian Asset Management
23
Acadian Asset Management
Massachusetts
$1.09M -$501K -105,384 -25%
WSC
24
Wellington Shields & Co
New York
$1.03M
Goldman Sachs
25
Goldman Sachs
New York
$998K +$483K +101,706 +56%

PSNL Hedge Fund Activity: Q1 2025 in Review

104 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Personalis (PSNL) for Q1 2025, worth a combined $192M — down 35% from $298M a quarter earlier.

Sellers outnumbered buyers: 21 funds closed out of PSNL and 19 opened new positions — a net loss of 2 holders — while 26 trimmed existing stakes and 43 added.

The largest buyer was Aberdeen Group, adding an estimated $6.69M. The largest seller was Millennium Management, cutting an estimated $2.12M.

  • 104 institutional investors held Personalis (PSNL) as of Q1 2025, down from 107 in Q4 2024.
  • Funds reported $192M of Personalis stock for Q1 2025, down 35% quarter-over-quarter.
  • 19 funds opened new Personalis positions in Q1 2025 and 21 closed out, a net change of -2 holders.
  • The largest Personalis buyer in Q1 2025 was Aberdeen Group, an estimated $6.69M added.
  • The largest Personalis seller in Q1 2025 was Millennium Management, an estimated $2.12M sold.

Based on aggregated 13F filings for Q1 2025.