Insider Ledger
LRMR insider buying and SEC filings, explained
Larimar Therapeutics, Inc. · CIK 1374690
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Pharmaceutical Preparations
- State of incorporation
- DE
- Fiscal year end
- Dec 31
- Former names
- ZAFGEN, INC.; ZAFGEN INC
Insider activity in the last 12 months
Bought
$25.2M
Insiders who bought
2
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Jul 6, 2026 | Purchase (code P) | Thomas Edward Hamilton (Director) bought 50,000 shares at about $3.34 ($167K), reported as a purchase (code P). Holdings up 8% to 714,798 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 8, 2026 |
| Feb 27, 2026 | Purchase (code P) | James E Flynn (Director and 10% owner) bought 5,000,000 shares indirectly (by entity) at $5.00 ($25.0M), reported as a purchase (code P). Holdings by entity up 48% to 6,207,982 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 9 other reporting owners. | SEC filing Filed Mar 2, 2026 |
| Feb 27, 2026 | Other purchase | Thomas Edward Hamilton (Director) bought 100,000 Common Stock at $5.00 ($500K) in a public offering. Holdings up 18% to 664,798 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 2, 2026 |
| Feb 27, 2026 | Other purchase | Frank E. Thomas (Director) bought 5,000 Common Stock at $5.00 ($25K) in a public offering. Holdings up 250% to 7,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 2, 2026 |
| Feb 27, 2026 | Other purchase | Jeffrey W. Sherman (Director) bought 5,000 Common Stock at $5.00 ($25K) in a public offering. New position of 5,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 2, 2026 |
11 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
Follow LRMR in the Insider Ledger app
Get the appA plain-English brief of insider purchases, 8-Ks and red flags at the companies you pick. No account needed.