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MPLT

MapLight Therapeutics
MPLT

100 hedge funds and large institutions have $868M invested in MapLight Therapeutics in 2026 Q2 according to their latest regulatory filings, with 36 funds opening new positions, 19 increasing their positions, 28 reducing their positions, and 8 closing their positions.

New
Increased
Maintained
Reduced
Closed

350% more first-time investments, than exits

New positions opened: 36 | Existing positions closed: 8

73% more capital invested

Capital invested by funds: $502M → $868M (+$366M)

23% more funds holding

Funds holding: 81 → 100 (+19)

1.36% less ownership

Funds ownership: 58.21% → 56.84% (-1.4%)

22% less funds holding in top 10

Funds holding in top 10: 9 → 7 (-2)

32% less repeat investments, than reductions

Existing positions increased: 19 | Existing positions reduced: 28

100% less call options, than puts

Call options by funds: $0 | Put options by funds: $907K

Holders
100
Holders Change
+19
Holders Change %
+23.46%
% of All Funds
1.23%
Holding in Top 10
7
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-22.22%
% of All Funds
0.09%
New
36
Increased
19
Reduced
28
Closed
8
Calls
–
Puts
$907K
Net Calls
-$907K
Net Calls Change
-$907K

Top Buyers

Rank Fund Capital Flow
1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$37.7M
2
PBA
Paradigm Biocapital Advisors
New York
+$19.7M
3
State Street
State Street
Massachusetts
+$14.8M
4
Capital World Investors
Capital World Investors
California
+$12M
5
BCM
Boxer Capital Management
California
+$2.16M

Top Sellers

Rank Fund Capital Flow
1
ACM
ADAR1 Capital Management
Texas
-$10M
2
BlackRock
BlackRock
New York
-$9.05M
3
BOCH
Blue Owl Capital Holdings
New York
-$7.94M
4
RCM
RA Capital Management
Massachusetts
-$5.05M
5
FGP
Freestone Grove Partners
California
-$4.17M
Name Holding Trade Value Shares
Change 		Change in
Stake
Northern Trust
26
Northern Trust
Illinois
$4.18M -$849K -29,520 -20%
SC
27
Stempoint Capital
New York
$3.83M +$199K +6,906 +7%
SGM
28
Seven Grand Managers
New York
$3.58M – – –
Vanguard Portfolio Management
29
Vanguard Portfolio Management
Pennsylvania
$3.47M -$456K -15,843 -14%
Lazard Asset Management
30
Lazard Asset Management
New York
$2.87M -$1.78M -61,934 -44%
BGM
31
Burkehill Global Management
New York
$2.69M – – –
BCM
32
Boxer Capital Management
California
$2.69M +$2.16M +75,000 New
BNP Paribas Financial Markets
33
BNP Paribas Financial Markets
France
$2.53M +$954K +33,183 +89%
TI
34
Trexquant Investment
Connecticut
$2.29M +$1.83M +63,792 New
TD Asset Management
35
TD Asset Management
Ontario, Canada
$1.95M +$194K +6,758 +14%
HF
36
HRT Financial
New York
$1.86M +$1.5M +51,983 New
JG
37
Jain Global
New York
$1.63M +$1.31M +45,551 New
Morgan Stanley
38
Morgan Stanley
New York
$1.37M +$224K +7,799 +26%
BCM
39
Bridgeway Capital Management
Texas
$1.25M +$1.01M +35,000 New
WAM
40
Weiss Asset Management
Massachusetts
$1.19M +$952K +33,094 New
Bank of New York Mellon
41
Bank of New York Mellon
New York
$1.09M -$260K -9,055 -23%
ACM
42
ADAR1 Capital Management
Texas
$950K -$10M -348,412 -93%
Citadel Advisors
43
Citadel Advisors
Florida
$923K +$741K +25,751 New
JF
44
Jump Financial
Illinois
$904K +$725K +25,222 New
XT
45
XTX Topco
Cayman Islands
$893K +$422K +14,658 +143%
GCM
46
Ghisallo Capital Management
Massachusetts
$717K – – –
Nuveen
47
Nuveen
North Carolina
$642K -$149K -5,168 -22%
Citigroup
48
Citigroup
New York
$611K +$463K +16,091 +1,676%
RhumbLine Advisers
49
RhumbLine Advisers
Massachusetts
$564K -$133K -4,620 -23%
MSWMA
50
Market Street Wealth Management Advisors
Indiana
$506K – – –
1
2
3 4 5

MPLT Hedge Fund Activity: Q2 2026 in Review

100 of the 8,153 institutional investors tracked by Wall St. Rank reported a position in MapLight Therapeutics (MPLT) for Q2 2026, worth a combined $868M — up 73% from $502M a quarter earlier.

Buyers outnumbered sellers: 36 funds opened new MPLT positions and 8 closed out — a net gain of 28 holders — while 19 added to existing stakes and 28 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $37.7M. The largest seller was ADAR1 Capital Management, cutting an estimated $10M.

  • 100 institutional investors held MapLight Therapeutics (MPLT) as of Q2 2026, up from 81 in Q1 2026.
  • Funds reported $868M of MapLight Therapeutics stock for Q2 2026, up 73% quarter-over-quarter.
  • 36 funds opened new MapLight Therapeutics positions in Q2 2026 and 8 closed out, a net change of +28 holders.
  • The largest MapLight Therapeutics buyer in Q2 2026 was T. Rowe Price Associates, an estimated $37.7M added.
  • The largest MapLight Therapeutics seller in Q2 2026 was ADAR1 Capital Management, an estimated $10M sold.

Based on aggregated 13F filings for Q2 2026.