This level of concentrated insider buying — especially one transaction over $5M — is rare and typically signals strong conviction in near-term value. Traders should watch for upcoming clinical updates or catalysts that may have prompted this activity.
Price Chart
Executive Summary
Four insiders at Larimar Therapeutics collectively purchased $6.07 million in shares over a single day at $5 per share, including a major $5.42 million open-market buy by an insider. This represents a strong, coordinated vote of confidence from corporate insiders.
Key Financial Metrics
Key Facts
- Insiders purchased a total of $6.07 million in LRMR stock on February 27, 2026.
- The largest transaction was a $5.42 million open-market purchase of 1,084,010 shares.
- All transactions were open-market buys (Form 4 code 'P'), indicating direct cash investment.
- Total insider buying represents approximately 1.34% of the company's $454M market cap — a materially significant level.
Financial Impact
$6.07 million in insider buying at $5/share, equivalent to 1.34% of market capitalization
Risk Factors
- Insider purchases do not guarantee positive outcomes — the stock remains high-risk, especially for a biotech with no commercial products.
- Buying could be based on non-public information that may not materialize as expected.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CONTEXT: Insider Cluster Data (4 trades, 7d window) | cluster-LRMR-1772498798624 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
May 14, 2026 20w ago | 8-K | $3.89 $4.01 | ▲ +3.08% | ▼ −0.50% | $2.93 (−24.68%) |
May 14, 2026 20w ago | Press Release | $3.89 $4.01 | ▲ +3.08% | ▼ −0.50% | $2.93 (−24.68%) |
Mar 19, 2026 28w ago | Press Release | $4.47 $3.59 | ▼ −19.69% | ▼ −34.03% | $2.93 (−34.45%) |
Feb 27, 2026 31w ago | 8-K | $5.31 $3.47 | ▼ −34.65% | ▼ −44.04% | $2.93 (−44.82%) |
Feb 27, 2026 31w ago | Insider Cluster | $5.31 $3.47 | ▼ −34.65% | ▼ −44.04% | $2.93 (−44.82%) |
Feb 27, 2026 31w ago | Insider Cluster | $5.31 $3.47 | ▼ −34.65% | ▼ −44.04% | $2.93 (−44.82%) |
US Market Status
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