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Larimar Therapeutics
LRMR

116 hedge funds and large institutions have $180M invested in Larimar Therapeutics in 2025 Q2 according to their latest regulatory filings, with 30 funds opening new positions, 43 increasing their positions, 23 reducing their positions, and 17 closing their positions.

New
Increased
Maintained
Reduced
Closed

3,977% more call options, than puts

Call options by funds: $14.1M | Put options by funds: $347K

87% more repeat investments, than reductions

Existing positions increased: 43 | Existing positions reduced: 23

76% more first-time investments, than exits

New positions opened: 30 | Existing positions closed: 17

37% more capital invested

Capital invested by funds: $132M → $180M (+$48.2M)

13% more funds holding

Funds holding: 103 → 116 (+13)

2.32% more ownership

Funds ownership: 95% → 97.32% (+2.3%)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

Holders
116
Holders Change
+13
Holders Change %
+12.62%
% of All Funds
1.53%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
30
Increased
43
Reduced
23
Closed
17
Calls
$14.1M
Puts
$347K
Net Calls
+$13.8M
Net Calls Change
+$13.8M

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$6.9M
2
OM
Opaleye Management
Massachusetts
+$5.08M
3
Citadel Advisors
Citadel Advisors
Florida
+$2.09M
4
Two Sigma Advisers
Two Sigma Advisers
New York
+$1.74M
5
CM
Caption Management
Oklahoma
+$1.6M

Top Sellers

Rank Fund Capital Flow
1
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$13.1M
2
Goldman Sachs
Goldman Sachs
New York
-$5.88M
3
Renaissance Technologies
Renaissance Technologies
New York
-$957K
4
CSS
Cubist Systematic Strategies
Connecticut
-$762K
5
Morgan Stanley
Morgan Stanley
New York
-$561K
Name Holding Trade Value Shares
Change 		Change in
Stake
DM
1
Deerfield Management
New York
$61.4M – – –
RCM
2
RA Capital Management
Massachusetts
$17.5M – – –
BOCH
3
Blue Owl Capital Holdings
New York
$14.2M +$347K +150,000 +3%
OM
4
Opaleye Management
Massachusetts
$11.9M +$5.08M +2,195,923 +115%
Millennium Management
5
Millennium Management
New York
$10.6M +$6.9M +2,982,177 +443%
BlackRock
6
BlackRock
New York
$8.79M -$194K -84,008 -3%
Vanguard Group
7
Vanguard Group
Pennsylvania
$6.19M -$175K -75,777 -3%
Alyeska Investment Group
8
Alyeska Investment Group
Illinois
$6M +$1.47M +633,409 +44%
Citadel Advisors
9
Citadel Advisors
Florida
$3.86M +$2.09M +901,969 +208%
Two Sigma Advisers
10
Two Sigma Advisers
New York
$3.31M +$1.74M +752,900 +191%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$2.61M -$8.19K -3,536 -0.4%
Two Sigma Investments
12
Two Sigma Investments
New York
$2.61M +$1.18M +508,866 +129%
State Street
13
State Street
Massachusetts
$2.48M +$61.2K +26,427 +3%
MP
14
Mangrove Partners
Connecticut
$2.23M – – –
CM
15
Caption Management
Oklahoma
$1.99M +$1.6M +689,290 New
WP
16
Woodline Partners
California
$1.8M – – –
Verition Fund Management
17
Verition Fund Management
Connecticut
$1.64M – – –
Renaissance Technologies
18
Renaissance Technologies
New York
$1.62M -$957K -413,229 -42%
DCM
19
Driehaus Capital Management
Illinois
$1.55M +$415K +179,469 +50%
AQR Capital Management
20
AQR Capital Management
Connecticut
$1.24M +$732K +316,262 +282%
DCM
21
DAFNA Capital Management
California
$1.07M – – –
Northern Trust
22
Northern Trust
Illinois
$994K -$50.2K -21,687 -6%
UOC
23
UBS O'Connor
Illinois
$888K +$294K +127,171 +71%
Assenagon Asset Management
24
Assenagon Asset Management
Luxembourg
$742K +$89K +38,427 +18%
Susquehanna International Group
25
Susquehanna International Group
Pennsylvania
$723K +$205K +88,393 +55%
1
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LRMR Hedge Fund Activity: Q2 2025 in Review

116 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Larimar Therapeutics (LRMR) for Q2 2025, worth a combined $180M — up 37% from $132M a quarter earlier.

Buyers outnumbered sellers: 30 funds opened new LRMR positions and 17 closed out — a net gain of 13 holders — while 43 added to existing stakes and 23 trimmed.

The largest buyer was Millennium Management, adding an estimated $6.9M. The largest seller was Janus Henderson Group, exiting entirely with an estimated $13.1M sold.

  • 116 institutional investors held Larimar Therapeutics (LRMR) as of Q2 2025, up from 103 in Q1 2025.
  • Funds reported $180M of Larimar Therapeutics stock for Q2 2025, up 37% quarter-over-quarter.
  • 30 funds opened new Larimar Therapeutics positions in Q2 2025 and 17 closed out, a net change of +13 holders.
  • The largest Larimar Therapeutics buyer in Q2 2025 was Millennium Management, an estimated $6.9M added.
  • The largest Larimar Therapeutics seller in Q2 2025 was Janus Henderson Group, an estimated $13.1M sold.

Based on aggregated 13F filings for Q2 2025.