LRMR

Larimar Therapeutics Inc
Health CareUSCUSIP 517125100◍ Confluence graph
Tracked 13F Holders
145
-95 QoQ
13F Value (tracked)
$350.8M
Insider Net · 180d
$167K
1↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)33 adding · 16 trimming
Insider net (180d)+$167K

Who owns LRMR?

145 tracked 13F filers

145 tracked 13F filers disclose a position in LRMR as of the latest SEC 13F filings, a combined $350.8M in reported value. 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.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
#FundPosition valueSharesLast moveAs ofHistory
1DEERFIELD MANAGEMENT COMPANY, L.P.
$160.2M
35.6M
+16%
Added · +5.0M sh
Q1 2026
2Blue Owl Capital Holdings LP
$27.9M
9.2M
+29%
Added · +2.0M sh
Q2 2026
3BlackRock, Inc.
$16.9M
3.8M
+1.9%
Added · +71K sh
Q1 2026
4MILLENNIUM MANAGEMENT LLC
$16.3M
3.6M
−30%
Reduced · −1.6M sh
Q1 2026
5VANGUARD CAPITAL MANAGEMENT LLC
$12.9M
2.9M
First observed position
No prior filed position
Q1 2026
6RTW INVESTMENTS, LP
$7.8M
2.6M
+71%
Added · +1.1M sh
Q2 2026
7DAFNA Capital Management LLC
$9.1M
2.0M
+116%
Added · +1.1M sh
Q1 2026
8GEODE CAPITAL MANAGEMENT, LLC
$5.1M
1.7M
+51%
Added · +570K sh
Q2 2026
9GOLDMAN SACHS GROUP INC
$7.0M
1.6M
+16%
Added · +214K sh
Q1 2026
10Deep Track Capital, LP
$6.8M
1.5M
New
+1.5M sh
Q1 2026
11CITADEL ADVISORS LLC
$4.4M
1.5M
+181%
Added · +938K sh
Q2 2026
12STATE STREET CORP
$4.3M
1.4M
+55%
Added · +500K sh
Q2 2026
13Woodline Partners LP
$6.3M
1.4M
+75%
Added · +600K sh
Q1 2026
14MARSHALL WACE, LLP
$4.2M
933K
New
+933K sh
Q1 2026
15Qube Research & Technologies Ltd
$3.8M
848K
New
+848K sh
Q1 2026
16AQR CAPITAL MANAGEMENT LLC
$3.7M
818K
+63%
Added · +315K sh
Q1 2026
17DIMENSIONAL FUND ADVISORS LP
$3.6M
798K
+144%
Added · +471K sh
Q1 2026
18RENAISSANCE TECHNOLOGIES LLC
$3.3M
740K
+149%
Added · +443K sh
Q1 2026
19Nuveen, LLC
$3.0M
675K
+542%
Added · +570K sh
Q1 2026
20Caption Management, LLC
$2.9M
635K
+53%
Added · +220K sh
Q1 2026
21Alyeska Investment Group, L.P.
$2.8M
617K
−33%
Reduced · −311K sh
Q1 2026
22D. E. Shaw & Co., Inc.
$2.6M
576K
+32%
Added · +138K sh
Q1 2026
23JANE STREET GROUP, LLC
$2.5M
554K
−18%
Reduced · −125K sh
Q1 2026
24TWO SIGMA INVESTMENTS, LP
$2.1M
476K
+61%
Added · +180K sh
Q1 2026
25MORGAN STANLEY
$1.9M
421K
+209%
Added · +285K 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.

Is LRMR being bought or sold by institutions?

Last quarter, 13 funds opened a new position in LRMR and 20 added to an existing one, while 16 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
13
funds
Added
20
funds
Reduced
16
funds
Exited
0
funds

Funds that own LRMR also own

CompanyCo-held byCombined value
NVIDIA CORPNVDA70 funds$175.7B
MICROSOFT CORPMSFT69 funds$114.4B
AMAZON.COM INCAMZN69 funds$84.7B
META PLATFORMS INC-CLASS AMETA68 funds$52.7B
ELI LILLY & COLLY68 funds$33.5B
BROADCOM INCAVGO67 funds$70.9B
ALPHABET INC-CL AGOOGL67 funds$62.8B
MICRON TECHNOLOGY INCMU67 funds$17.9B
UNITEDHEALTH GROUP INCUNH67 funds$14.2B
CHEVRON CORPCVX67 funds$13.9B
TESLA INCTSLA66 funds$31.6B
COSTCO WHOLESALE CORPCOST66 funds$17.9B

Ranked by how many of LRMR's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$167K
1 insiders
Sells · 180d
$0
0 insiders
Net
$167K
1 P/S txns
Signal
Net Buying
open-market
DateInsiderRoleActionSharesValue
Jul 6, 2026Hamilton Thomas EdwardDirectorBuy (P)50K$167K
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
Feb 27, 2026Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy (P)832K$4.2M
Feb 27, 2026Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy (P)1.1M$5.4M
Jul 31, 2025Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy (P)3.4M$10.8M
Jul 31, 2025Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy (P)3.4M$10.8M
Jul 31, 2025Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy (P)2.6M$8.3M
Feb 16, 2024Hamilton Thomas EdwardDirectorBuy (P)57K$500K

Institutional ownership over time

51 funds-36 since Q3 2024
073146Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $52.1M

Recent filings

15 shown

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Connected entities for LRMR

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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.

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.