Larimar Therapeutics, Inc.
LRMRAs of the close on Sep 25, 2026
Price
$3.08
Market cap
$319M
P/E (diluted TTM)
—
Per-share earnings are not available for each of the last four quarters
EPS (TTM)
—
Per-share earnings are not available for each of the last four quarters
Dividend yield
—
Dividend records do not yet cover the latest payments
Figures shown here come from public SEC filings. Dates beside each section show the available history.
How Larimar Therapeutics, Inc. Makes Money
No flow chart is shown because the available revenue and expense lines do not reconcile exactly. The reported financial history below remains available.
Financial Summary
Choose a year or quarter, compare it with the same period a year earlier, and open any row for its full filing history.
Loading financial history…
SEC filings supply these figures; updates after the dates shown are not included. This page includes 14 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated May 20, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| CITADEL ADVISORS LLC | 2026-03-31 | 519,132 | $2.34M | SEC filing |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2026-03-31 | 23,091 | $104K | SEC filing |
| Blue Owl Capital Holdings LP | 2026-03-31 | 7,120,007 | $32M | SEC filing |
| Arax Advisory Partners | 2026-03-31 | 157 | $707 | SEC filing |
| RENAISSANCE TECHNOLOGIES LLC | 2026-03-31 | 739,942 | $3.33M | SEC filing |
| AXQ CAPITAL, LP | 2026-03-31 | 52,973 | $238K | SEC filing |
| Russell Investments Group, Ltd. | 2026-03-31 | 3,589 | $16.2K | SEC filing |
| NEW YORK STATE COMMON RETIREMENT FUND | 2026-03-31 | 6,619 | $29.8K | SEC filing |
| Bank of New York Mellon Corp | 2026-03-31 | 107,331 | $483K | SEC filing |
| DAFNA Capital Management LLC | 2026-03-31 | 2,029,164 | $9.13M | SEC filing |
| Physician Wealth Advisors, Inc. | 2026-03-31 | 233 | $1.05K | SEC filing |
| Ameritas Investment Partners, Inc. | 2026-03-31 | 4,121 | $18.5K | SEC filing |
| MORGAN STANLEY | 2026-03-31 | 420,813 | $1.89M | SEC filing |
| INCEPTIONR LLC | 2026-03-31 | 44,006 | $198K | SEC filing |
| UBS Group AG | 2026-03-31 | 29,699 | $134K | SEC filing |
| STATE STREET CORP | 2026-03-31 | 911,326 | $4.1M | SEC filing |
| Root Financial Partners, LLC | 2026-03-31 | 1,631 | $7.34K | SEC filing |
| SUMMIT SECURITIES GROUP LLC | 2026-03-31 | 794 | $3.57K | SEC filing |
| PRUDENTIAL FINANCIAL INC | 2026-03-31 | 32,793 | $148K | SEC filing |
| CWM, LLC | 2026-03-31 | 64,126 | $289K | SEC filing |
120 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among Larimar Therapeutics, Inc.'s recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2026-02-27 · DEERFIELD MANAGEMENT COMPANY, L.P.: Larger than 44 of the 48 other insider purchases of Common Stock on file. SEC filing
- 2025-07-31 · DEERFIELD MANAGEMENT COMPANY, L.P.: Larger than 47 of the 48 other insider purchases of Common Stock on file. SEC filing
- 2025-07-31 · DEERFIELD MANAGEMENT COMPANY, L.P.: Larger than all 48 other insider purchases of Common Stock on file. SEC filing
- 2025-07-31 · DEERFIELD MANAGEMENT COMPANY, L.P.: Larger than 45 of the 48 other insider purchases of Common Stock on file. SEC filing
- 2022-09-16 · DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C): Larger than 46 of the 48 other insider purchases of Common Stock on file. SEC filing
Independent insiders buying near the same time
- 2026-02-27–2026-02-27: 7 event(s) across 4 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing , filing , filing , filing )
- 2024-02-14–2024-02-16: 4 event(s) across 3 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing )
- 2023-05-17–2023-05-17: 3 event(s) across 3 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing )
- 2022-09-16–2022-09-16: 4 event(s) across 4 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing )
- 2021-06-30–2021-06-30: 4 event(s) across 2 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing )
- 2016-07-22–2016-07-26: 4 event(s) across 3 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing )
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-02-27 | DEERFIELD MANAGEMENT COMPANY, L.P. · Director, 10% owner, other | Common Stock | P — Open market or private purchase | +2,000,000 | 5.00 | SEC filing |
| 2026-02-27 | DEERFIELD MANAGEMENT COMPANY, L.P. · Director, 10% owner, other | Common Stock | P — Open market or private purchase | +1,084,012 | 5.00 | SEC filing |
| 2026-02-27 | Hamilton Thomas Edward · Director | Common Stock | P — Open market or private purchase | +100,000 | 5.00 | SEC filing |
| 2026-02-27 | THOMAS FRANK E · Director | Common Stock | P — Open market or private purchase | +5,000 | 5.00 | SEC filing |
| 2026-02-27 | SHERMAN JEFFREY W · Director | Common Stock | P — Open market or private purchase | +5,000 | 5.00 | SEC filing |
| 2026-02-27 | DEERFIELD MANAGEMENT COMPANY, L.P. · Director, 10% owner, other | Common Stock | P — Open market or private purchase | +831,978 | 5.00 | SEC filing |
| 2026-02-27 | DEERFIELD MANAGEMENT COMPANY, L.P. · Director, 10% owner, other | Common Stock | P — Open market or private purchase | +1,084,010 | 5.00 | SEC filing |
| 2025-07-31 | DEERFIELD MANAGEMENT COMPANY, L.P. · Director, 10% owner, other | Common Stock | P — Open market or private purchase | +2,599,932 | 3.20 | SEC filing |
Showing 8 of 20 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-05-19 | DEERFIELD MANAGEMENT COMPANY, L.P. · Director, 10% owner, other | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +55,150 | SEC filing |
| 2026-05-19 | Truitt Joseph · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +55,150 | SEC filing |
| 2026-05-19 | LEFF JONATHAN S · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +55,150 | SEC filing |
| 2026-05-19 | THOMAS FRANK E · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +55,150 | SEC filing |
| 2026-05-19 | SHERMAN JEFFREY W · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +55,150 | SEC filing |
| 2026-05-19 | Hamilton Thomas Edward · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +55,150 | SEC filing |
| 2026-01-26 | Clayton Russell · Chief Medical Officer | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +153,822 | SEC filing |
| 2026-01-26 | Shankar Gopi · Chief Development Officer | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +153,822 | SEC filing |
Showing 8 of 20 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2020-06-26 | CHONDRIAL THERAPEUTICS HOLDINGS, LLC · 10% owner | Common Stock | J — Other acquisition or disposition | −6,091,242 | SEC filing |
| 2020-06-26 | BEN-MAIMON CAROLE · President and CEO | Common Stock | J — Other acquisition or disposition | +25,083 | SEC filing |
| 2020-06-26 | Hamilton Thomas Edward · Director | Common Stock | J — Other acquisition or disposition | +133,420 | SEC filing |
| 2020-06-26 | Hamilton Thomas Edward · Director | Common Stock | J — Other acquisition or disposition | +159,433 | SEC filing |
| 2018-06-29 | Atlas Venture Fund VII L P · 10% owner | Common Stock | J — Other acquisition or disposition | −1,126,546 | SEC filing |
| 2018-06-29 | Atlas Venture Fund VII L P · 10% owner | Common Stock | J — Other acquisition or disposition | −234,321 | SEC filing |
| 2016-04-01 | McDonough Cameron Geoffrey · Director | Common Stock | D — Disposition to the issuer | −4,424 | SEC filing |
| 2015-09-24 | STARR KEVIN P · Director | Common Stock | J — Other acquisition or disposition | −476,170 | SEC filing |
Showing 8 of 10 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.