LRMR

Larimar Therapeutics Inc$3.67 3.67%
Health CareUSCUSIP 517125100· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
129
+17 QoQ
13F Value (tracked)
$328.9M
Insider Net · 180d
$25.7M
4↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)30 adding · 17 trimming
Insider net (180d)+$25.7M

Price & smart-money activity

$3.67 3.67%5Y -62.9%
$0.44$4.38$8.32$12.26$16.20202120222023202420252026104476745718862273101791061152782322231820241723271033615263273927
Hover for who · click for detailEnd-of-day closing prices52w $2.81 – $5.95
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Ask your agent what changed in LRMR

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/LRMR/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for LRMR.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

129 tracked 13F filers
#FundPosition valueSharesLast moveAs ofHistory
1DEERFIELD MANAGEMENT COMPANY, L.P.
$160.2M
35.6M
+16%
Added · +5.0M sh
Q1 2026
2BlackRock, Inc.
$16.9M
3.8M
+1.9%
Added · +71K sh
Q1 2026
3MILLENNIUM MANAGEMENT LLC
$16.3M
3.6M
−30%
Reduced · −1.6M sh
Q1 2026
4VANGUARD CAPITAL MANAGEMENT LLC
$12.9M
2.9M
New
+2.9M sh
Q1 2026
5DAFNA Capital Management LLC
$9.1M
2.0M
+116%
Added · +1.1M sh
Q1 2026
6GOLDMAN SACHS GROUP INC
$7.0M
1.6M
+16%
Added · +214K sh
Q1 2026
7RTW INVESTMENTS, LP
$6.8M
1.5M
−52%
Reduced · −1.6M sh
Q1 2026
8Deep Track Capital, LP
$6.8M
1.5M
New
+1.5M sh
Q1 2026
9Woodline Partners LP
$6.3M
1.4M
+75%
Added · +600K sh
Q1 2026
10GEODE CAPITAL MANAGEMENT, LLC
$5.0M
1.1M
+1.4%
Added · +15K sh
Q1 2026
11Soleus Capital Management, L.P.
$4.8M
1.1M
New
+1.1M sh
Q1 2026
12Point72 Asset Management, L.P.
$4.7M
1.0M
−28%
Reduced · −414K sh
Q1 2026
13MARSHALL WACE, LLP
$4.2M
933K
New
+933K sh
Q1 2026
14STATE STREET CORP
$4.1M
911K
−0.1%
Reduced · −599 sh
Q1 2026
15Gem Investment Advisors, LLC
$3.8M
854K
+204%
Added · +573K sh
Q1 2026
16Qube Research & Technologies Ltd
$3.8M
848K
New
+848K sh
Q1 2026
17AQR CAPITAL MANAGEMENT LLC
$3.7M
818K
+63%
Added · +315K sh
Q1 2026
18DIMENSIONAL FUND ADVISORS LP
$3.6M
798K
+144%
Added · +471K sh
Q1 2026
19RENAISSANCE TECHNOLOGIES LLC
$3.3M
740K
+149%
Added · +443K sh
Q1 2026
20Nuveen, LLC
$3.0M
675K
+542%
Added · +570K sh
Q1 2026
21Caption Management, LLC
$2.9M
635K
+53%
Added · +220K sh
Q1 2026
22Alyeska Investment Group, L.P.
$2.8M
617K
−33%
Reduced · −311K sh
Q1 2026
23D. E. Shaw & Co., Inc.
$2.6M
576K
+32%
Added · +138K sh
Q1 2026
24JANE STREET GROUP, LLC
$2.5M
554K
−18%
Reduced · −125K sh
Q1 2026
25CITADEL ADVISORS LLC
$2.3M
519K
−62%
Reduced · −848K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
13
funds
Added
17
funds
Reduced
17
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$25.7M
4 insiders
Sells · 180d
$0
0 insiders
Net
$25.7M
8 P/S txns
Signal
Net Buying
open-market
DateInsiderRoleActionSharesValue
Jul 6, 2026Hamilton Thomas EdwardDirectorBuy (P)50K$167K
May 19, 2026Hamilton Thomas EdwardDirectorGrant (A)55K$0
May 19, 2026Flynn James EDirector, 10% OwnerGrant (A)55K$0
May 19, 2026LEFF JONATHAN SDirectorGrant (A)55K$0
May 19, 2026THOMAS FRANK EDirectorGrant (A)55K$0
May 19, 2026Truitt JosephDirectorGrant (A)55K$0
May 19, 2026SHERMAN JEFFREY WDirectorGrant (A)55K$0
Feb 27, 2026SHERMAN JEFFREY WDirectorBuy (P)5K$25K
Feb 27, 2026THOMAS FRANK EDirectorBuy (P)5K$25K
Feb 27, 2026Hamilton Thomas EdwardDirectorBuy (P)100K$500K
Feb 27, 2026Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy (P)1.1M$5.4M
Feb 27, 2026Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy (P)2.0M$10.0M

Institutional ownership over time

128 funds+45 since Q3 2024
064128Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $327.7M

Funds that own LRMR also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT42 funds$17.2B
AMAZON.COM INCAMZN42 funds$14.3B
BROADCOM INCAVGO42 funds$9.4B
ELI LILLY & COLLY42 funds$4.6B
NETFLIX INCNFLX42 funds$2.7B
NVIDIA CORPNVDA41 funds$24.0B
META PLATFORMS INC-CLASS AMETA41 funds$9.3B
COSTCO WHOLESALE CORPCOST41 funds$3.2B
MERCK & CO. INC.MRK41 funds$3.1B
UNITEDHEALTH GROUP INCUNH41 funds$2.9B
ADVANCED MICRO DEVICESAMD41 funds$2.5B
CHEVRON CORPCVX41 funds$2.5B

Ranked by how many of LRMR's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for LRMR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.