Companies / Larimar Therapeutics, Inc.
Larimar Therapeutics, Inc.
Financials · FY2019
Ownership
103.9M shares outstanding · as of Aug 2, 2026
Ownership
| Insiders | 35.63% | 37,015,719 |
| Institutions | 78.95% | 82,016,416 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 19
View all →| Insider | % of shares | Shares |
|---|---|---|
Deerfield Mgmt, L.P.Director · 10% owner | 34.28% | 35,606,974 |
Hamilton Thomas EdwardDirector | 0.64% | 664,798 |
Ben-Maimon CaroleCEOPresident and CEO · Director | 0.35% | 368,276 |
Celano MichaelChief Financial Officer | 0.21% | 215,785 |
Shankar GopiChief Development Officer | 0.07% | 76,443 |
Clayton RussellChief Medical Officer | 0.07% | 71,443 |
Thomas Frank EDirector | <0.01% | 7,000 |
Sherman Jeffrey WDirector | <0.01% | 5,000 |
Deerfield Healthcare Innovations Fund, L.P.Director · 10% owner | — | — |
Deerfield Management Company, L.P.Director · 10% owner | — | — |
Institutional holders 146
View all →| Holder | Value | % of shares |
|---|---|---|
| $160.23M | 34.28% | |
| $26.00M | 6.57% | |
| $17.32M | 5.47% | |
| $16.31M | 3.49% | |
| $11.91M | 3.01% | |
| $11.61M | 2.93% | |
| $9.13M | 1.95% | |
| $7.62M | 1.93% | |
| $5.57M | 1.41% | |
| $5.21M | 1.32% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Deerfield Management Company, L.P. 13F manager | Add | Common stock | $22.50M | +5.0M +16.34% | 35,606,974 34.28% of shares | medium |
| Q2 2026 as of | AIGH Capital Management LLC 13F manager | Exit | Common stock | $-7.62M | -2.0M -100.00% | 0 | medium |
| Q1 2026 as of | Millennium Management LLC 13F manager | Trim | Common stock | $-7.11M | -1.6M -30.37% | 3,625,278 3.49% of shares | medium |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common stock | $6.09M | +2.0M +54.23% | 5,678,035 5.47% of shares | medium |
| Q1 2026 as of | DAFNA Capital Management LLC 13F manager | Add | Common stock | $4.91M | +1.1M +116.06% | 2,029,164 1.95% of shares | low |
| Q1 2026 as of | Marshall Wace, LLP 13F manager | New | Common stock | $4.20M | +933K | 933,464 0.90% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Add | Common stock | $1.99M | +443K +148.92% | 739,942 0.71% of shares | low |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $1.52M | +500K +54.82% | 1,411,804 1.36% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| RA Capital Management, L.P. | Passive13G/A | — |
| Blue Owl Capital Holdings LP | Passive13G/A | — |
| Millennium Management LLC | Passive13G/A | — |
| Blue Owl Capital Holdings LP | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| LRMR | — | 517125100 |