LRMR: Larimar Therapeutics, Inc. insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

0 open-market buys totaling - and 0 sales totaling - in the last 180 days.

Institutional ownership (Q2 2026)

163 institutions reported holding $290.92M of Larimar Therapeutics, Inc. on Form 13F (162 the quarter before). 31 opened a new position and 29 sold out. Shares held by institutions: +9%.

Largest holdersSharesValue
DEERFIELD MANAGEMENT COMPANY, L.P.35,606,974$108.60M
Blue Owl Capital Holdings LP9,163,157$27.95M
BlackRock, Inc.5,678,035$17.32M
Defilade Capital Management, L.P.3,670,135$11.19M
Driehaus Capital Management LLC3,163,423$9.65M
VANGUARD CAPITAL MANAGEMENT LLC2,974,901$9.07M
RTW INVESTMENTS, LP2,565,999$7.83M
AQR CAPITAL MANAGEMENT LLC2,371,414$7.23M
MARSHALL WACE, LLP2,012,458$6.14M
DAFNA Capital Management LLC2,008,164$6.12M

Clinical trial readouts

1 Phase 2 or 3 trials by Larimar Therapeutics, Inc. with a primary completion date in the last 90 days or the next 12 months and no results posted yet, from ClinicalTrials.gov. (est.) = company estimate.

Primary completionDrugConditionPhasePatientsStatusTrial
2027-01 (est.)CTI-1601Friedreich AtaxiaPhase 285RecruitingNCT06447025

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