Insider Cluster (3 insiders) ·Filed Feb 27, 2026

LRMR

Larimar Therapeutics, Inc.
BULLISH
Impact 6/10
Horizonweeks Processed7mo ago
Insider cluster: 2 insiders, $50K total
Actionable Insight ▲ Bullish

The concentrated buying — especially the $500K purchase by Hamilton Thomas Edward — suggests strong confidence in the company’s near-term prospects. Traders should monitor for upcoming catalysts such as clinical trial updates or regulatory filings.

DirectionBullish
Confidencemedium
Horizonweeks
Final — all horizons settled through T+60d ⚠ clustered
LRMR ▼ -34.65% at T+60d
LONG call ✗ call lost -34.65% · α vs SPY -44.04% · entry $5.31 → $3.47
Entry anchored
Feb 26, 03:59 PM ET
via exchange tick
T+1d
-1.51%
call -1.51% · α -1.56%
$5.23
settled 7mo ago
T+5d
-1.69%
call -1.69% · α +0.29%
$5.22
settled 7mo ago
T+20d
-12.99%
call -12.99% · α -5.44%
$4.62
settled 6mo ago
T+60d
-34.65%
call -34.65% · α -44.04%
$3.47
settled 4mo ago

Price Chart

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Executive Summary

Three insiders at Larimar Therapeutics collectively purchased $550,000 worth of shares in open-market transactions on February 27, 2026, at $5 per share. The buyers include two individuals with similar names — Hamilton Thomas Edward and Thomas Frank E — possibly indicating a potential naming overlap, though both are reported as separate transactions.

Key Financial Metrics

Direction
buying
Total Value
$550.0K
Insiders
3

Key Facts

  • Three insiders purchased a total of 110,000 shares in open-market transactions on the same day (2026-02-27).
  • Total value of purchases: $550,000.
  • All transactions were open-market buys (Form 4 code 'P') at $5 per share.
  • Hamilton Thomas Edward accounted for $500,000 of the total, representing 91% of the cluster value.
  • Market cap of LRMR is $454M; total insider buying represents approximately 0.12% of market cap.

Financial Impact

$550,000 in open-market purchases, or 0.12% of market cap

insider buyingmarket sentiment

Risk Factors

  • The name 'Hamilton Thomas Edward' and 'Thomas Frank E' may indicate a data reporting anomaly or duplication, which could affect the perceived significance of the cluster.
  • The total dollar amount, while notable, is still below 0.5% of market cap, limiting its macro impact.

Market Snapshot

Exchange
Nasdaq

Investment Themes

Biotech & Drug Discovery

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CONTEXT: Insider Cluster Data (3 trades, 7d window)cluster-LRMR-1772487080383
6 reports for LRMR
Performance horizon
67% Hit rate 2 of 3 directional calls best @ T+60▲ +3.08%May 14, 2026
Filters
Rows
Reports for LRMR — sortable, filterable
TypeNow
May 14, 2026
20w ago
8-K
BULLISH ★ 7/10
$3.89 $4.01▲ +3.08%▼ −0.50%$2.96 (−23.91%)
May 14, 2026
20w ago
Press Release
BULLISH ★ 7/10
$3.89 $4.01▲ +3.08%▼ −0.50%$2.96 (−23.91%)
Mar 19, 2026
28w ago
Press Release
MIXED ★ 7/10
$4.47 $3.59▼ −19.69%▼ −34.03%$2.96 (−33.78%)
Feb 27, 2026
31w ago
8-K
NEUTRAL ★ 5/10
$5.31 $3.47▼ −34.65%▼ −44.04%$2.96 (−44.26%)
Feb 27, 2026
31w ago
Insider Cluster
BULLISH ★ 8/10
$5.31 $3.47▼ −34.65%▼ −44.04%$2.96 (−44.26%)
Feb 27, 2026
31w ago
Insider Cluster
BULLISH ★ 6/10
$5.31 $3.47▼ −34.65%▼ −44.04%$2.96 (−44.26%)
Showing 6 of 6

US Market Status

Market Closed — Opens Mon (65h 21m)

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Report published Mar 2, 2026