Larimar Therapeutics LRMR Institutional Ownership

NASDAQ LRMR

$3.83 +0.00 (+0.00%)

At close: Sep 4, 2026 · 4:00 PM EDT

Institutions by Trading Activity

162 Institutions

Increased 101 62.3%

Unchanged 20 12.3%

Reduced 41 25.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

92.07%

▼-28.23 pp QoQ

Shares Held by Institutions

95.64Mn

of 103.88Mn outstanding

▲+17.53% QoQ

Shares Outstanding

103.88Mn

8.24Mn held outside 13F filers

Institutional Investors

162

filed 13F for Jun 2026

■0 vs prior quarter

Net Shares Added (QoQ)

+14.26Mn

accumulated since last quarter

Value of Holdings

$366.31Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Larimar Therapeutics, Inc. (NASDAQ:LRMR) showed up in the 13F filings of 162 institutional investors as of June 2026.

Their combined ownership stood at 92.1% of outstanding shares in June 2026, down from 120.3% in March 2026.
Their total shares held in LRMR increased 17.53% from the prior quarter, while the number of investors in Larimar Therapeutics increased 40.87% year over year.
Among the 162 funds, 101 bought more Larimar Therapeutics shares, 41 sold down, and 20 held their ground.
In total, institutional investors held 95.64Mn shares in Larimar Therapeutics as of June 2026, up by 14.26Mn shares quarter on quarter, and up 30.16Mn shares year over year.
DEERFIELD MANAGEMENT COMPANY, L.P. holds the largest position in LRMR at 35.61Mn shares as of June 30, 2026, or 34.28% of shares outstanding.
The biggest buyers of Larimar Therapeutics for the quarter ending June 2026 included Defilade Capital Management, L.P. (3.67Mn), Blue Owl Capital Holdings LP (2.04Mn), BlackRock, Inc. (1.93Mn), AQR CAPITAL MANAGEMENT LLC (1.55Mn), MARSHALL WACE, LLP (1.08Mn).
The biggest sellers of Larimar Therapeutics for the quarter ending June 2026 included MILLENNIUM MANAGEMENT LLC (2.29Mn), Point72 Asset Management, L.P. (912.58K), Soleus Capital Management, L.P. (878.86K), Gem Investment Advisors, LLC (534.71K), JANE STREET GROUP, LLC (480.27K).
According to Business Quant data, leading holders of LRMR for June 2026 are DEERFIELD MANAGEMENT COMPANY, L.P. (35.61Mn), Blue Owl Capital Holdings LP (9.16Mn), BlackRock, Inc. (5.68Mn), Defilade Capital Management, L.P. (3.67Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (3.16Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.97Mn), RTW INVESTMENTS, LP (2.57Mn), AQR CAPITAL MANAGEMENT LLC (2.37Mn), MARSHALL WACE, LLP (2.01Mn), DAFNA Capital Management LLC (2.01Mn).

Form 13F Holdings

162 Institutional Holders

Report period 30 Jun, 2026

Total shares held 95.64Mn

Of outstanding 92.07%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	DEERFIELD MANAGEMENT COMPANY, L.P.	0001009258	35,606,974	34.28%	0	0.00%	$108.60Mn
2	Blue Owl Capital Holdings LP	0001858703	9,163,157	8.82%	▲2,043,150	+28.70%	$27.95Mn
3	BlackRock, Inc.	0002012383	5,678,035	5.47%	▲1,925,835	+51.33%	$17.32Mn
4	Defilade Capital Management, L.P.	0002088557	3,670,135	3.53%	▲3,670,135	0.00%	$11.19Mn
5	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	3,163,423	3.05%	▲229,024	+7.80%	$9.65Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,974,901	2.86%	▲108,552	+3.79%	$9.07Mn
7	RTW INVESTMENTS, LP	0001493215	2,565,999	2.47%	▲1,065,999	+71.07%	$7.83Mn
8	AQR CAPITAL MANAGEMENT LLC	0001167557	2,371,414	2.28%	▲1,553,897	+190.08%	$7.23Mn
9	MARSHALL WACE, LLP	0001318757	2,012,458	1.94%	▲1,078,994	+115.59%	$6.14Mn
10	DAFNA Capital Management LLC	0001389933	2,008,164	1.93%	▼21,000	-1.03%	$6.12Mn
11	Goldman Sachs Group Inc	0000886982	1,752,910	1.69%	▲191,325	+12.25%	$5.35Mn
12	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,679,003	1.62%	▲570,242	+51.43%	$5.12Mn
13	Qube Research & Technologies Ltd	0001729829	1,641,042	1.58%	▲793,398	+93.60%	$5.01Mn
14	CITADEL ADVISORS LLC	0001423053	1,456,825	1.40%	▲937,693	+180.63%	$4.44Mn
15	State Street Corp	0000093751	1,411,804	1.36%	▲500,478	+54.92%	$4.31Mn
16	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,403,172	1.35%	▲996,614	+245.13%	$4.28Mn
17	Woodline Partners LP	0001784547	1,400,850	1.35%	0	0.00%	$4.27Mn
18	MILLENNIUM MANAGEMENT LLC	0001273087	1,333,037	1.28%	▼2,292,241	-63.23%	$4.07Mn
19	DIMENSIONAL FUND ADVISORS LP	0000354204	961,083	0.93%	▲162,621	+20.37%	$2.93Mn
20	FMR LLC	0000315066	937,368	0.90%	▲873,798	+1,374.54%	$2.86Mn

Showing 1 to 20 of 162 holders