Larimar Therapeutics, Inc. (LRMR) Insider Trading -- Recent Executive & Director Transactions
18 insiders reported 79 Form 4 transactions for Larimar Therapeutics, Inc. (LRMR) over the past 18 months (most recent 2026-10-01). Recent activity: Harlow John B. Jr. (President and COO) Buy 50,000 shares, Hamilton Thomas Edward (Director) Buy 50,000 shares, DEERFIELD MANAGEMENT COMPANY, L.P. (Director) Buy 1.1M shares, DEERFIELD MANAGEMENT COMPANY, L.P. (Director) Buy 1.1M shares, Deerfield Mgmt L.P. (Director) Buy 1.1M shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-01 | Harlow John B. Jr. | President and COO | Buy | 50,000 | $0 |
| 2026-07-08 | Hamilton Thomas Edward | Director | Buy | 50,000 | $166,890 |
| 2026-03-02 | DEERFIELD MANAGEMENT COMPANY, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | DEERFIELD MANAGEMENT COMPANY, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Mgmt L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | DEERFIELD PARTNERS, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Flynn James E | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Private Design Fund III, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Mgmt III, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Healthcare Innovations Fund, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Mgmt HIF, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Private Design Fund IV, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Mgmt IV, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | SHERMAN JEFFREY W | Director | Buy | 5,000 | $25,000 |
| 2026-03-02 | Deerfield Mgmt L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | DEERFIELD PARTNERS, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Flynn James E | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Private Design Fund III, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Mgmt III, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Healthcare Innovations Fund, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Mgmt HIF, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Private Design Fund IV, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | Deerfield Mgmt IV, L.P. | Director | Buy | 1.1M | $5.4M |
| 2026-03-02 | DEERFIELD MANAGEMENT COMPANY, L.P. | Director | Buy | 831,978 | $4.2M |
| 2026-03-02 | Deerfield Mgmt L.P. | Director | Buy | 831,978 | $4.2M |
Source: SEC Form 4 filings · as of 2026-10-01