Larimar Therapeutics Ownership | Who Owns Larimar Therapeutics?


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Larimar Therapeutics Ownership Summary


Larimar Therapeutics is owned by 97.40% institutional investors, 1.07% insiders, and 1.53% retail investors. Deerfield management company, l.p. (series c) is the largest institutional shareholder, holding 33.19% of LRMR shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.28% of its assets in Larimar Therapeutics shares.

LRMR Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockLarimar Therapeutics97.40%1.07%1.53%
SectorHealthcare Stocks 488.17%11.08%-399.26%
IndustryBiotech Stocks 306.59%11.10%-217.69%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Deerfield management company, l.p. (series c)21.23M33.19%$61.36M
Ra capital management6.05M9.45%$17.47M
Blue owl capital lp4.93M7.70%$14.24M
Goldman sachs group4.15M6.51%$16.07M
Blackrock3.13M5.85%$22.72M
Blackrock funding, inc. /de3.04M4.75%$8.79M
Vanguard group2.19M3.44%$8.49M
Alyeska investment group2.08M3.25%$6.00M
Opaleye management1.91M2.99%$4.12M
State street916.20K1.71%$6.64M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Blue owl capital lp4.93M4.60%$14.24M
Deerfield management company, l.p. (series c)21.23M1.11%$61.36M
Opaleye management1.91M0.92%$4.12M
Altium capital management lp505.00K0.55%$1.95M
Dafna capital management371.43K0.30%$1.07M
Ra capital management6.05M0.29%$17.47M
Mangrove partners770.23K0.24%$2.23M
Sphera funds management196.63K0.13%$568.27K
Adar1 capital management237.60K0.11%$686.68K
Hap trading237.78K0.07%$687.17K

Top Buyers

HolderShares% AssetsChange
Opaleye management1.91M0.92%1.91M
Blackrock3.13M0.00%795.19K
Caption management689.29K0.02%689.29K
Alyeska investment group2.08M0.02%633.41K
Millennium management673.01K0.00%418.06K

Top Sellers

HolderShares% AssetsChange
Janus henderson group---5.57M
Adage capital partners gp---2.10M
Fred alger management---737.55K
Stempoint capital lp---704.35K
Logos global management lp---700.00K

New Positions

HolderShares% AssetsChangeValue
Opaleye management1.91M0.92%1.91M$4.12M
Caption management689.29K0.02%689.29K$1.99M
Hap trading237.78K0.07%237.78K$687.17K
Adar1 capital management237.60K0.11%237.60K$686.68K
Hudson bay capital management lp228.76K0.00%228.76K$661.12K

Sold Out

HolderChange
National bank of canada /fi/-2.00
Federated hermes-3.00
Ifp advisors-4.00
Nelson, van denburg & campbell wealth management group-5.00
Signaturefd-8.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 202512418.10%62,303,7192.43%971.08%7250.00%24-22.58%
Mar 31, 202510-91.80%31,178,885-50.84%480.49%5-92.19%1-97.14%
Dec 31, 2024116-8.66%61,296,513-4.71%960.95%61-6.15%32-5.88%
Sep 30, 202412715.45%64,329,114-1.50%1000.68%654.84%34-
Jun 30, 2024110-1.79%65,308,4722.69%1210.58%62-17.33%3454.55%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv1.95M2.28%645.43K
Vanguard US Total Market Shares ETF1.34M2.10%-
iShares Russell 2000 ETF1.05M1.22%-19.84K
Fidelity Advisor Biotechnology I524.80K0.82%-
Fidelity Small Cap Index437.87K0.68%-5.33K
Invesco Dorsey Wright SmallCap Momt ETF422.53K0.66%-
Alger Small Cap Growth B398.96K0.62%-
Heptagon Driehaus US Micro Cap Eq C$ Acc387.15K0.61%-2.69K
iShares Russell 2000 Growth ETF388.03K0.61%-
Janus Henderson Hrzn Biotec E2 USD347.56K0.54%-107.54K

Recent Insider Transactions


DateNameRoleActivityValue
Jul 31, 2025Flynn James E * Director by DeputizationBuy$10.84M
Jul 31, 2025Flynn James E * Director by DeputizationBuy$8.32M
Jul 31, 2025Flynn James E * Director by DeputizationBuy$10.84M
Feb 16, 2024Hamilton Thomas Edward-Buy$500.00K
Feb 16, 2024Flynn James E * Director by DeputizationBuy$12.50M

Insider Transactions Trends


DateBuySell
2025 Q2--
2025 Q1--
2024 Q2--
2024 Q15-
2023 Q41-

LRMR Ownership FAQ


Who Owns Larimar Therapeutics?

Larimar Therapeutics shareholders are primarily institutional investors at 97.40%, followed by 1.07% insiders and 1.53% retail investors. The average institutional ownership in Larimar Therapeutics's industry, Biotech Stocks , is 306.59%, which Larimar Therapeutics falls below.

Who owns the most shares of Larimar Therapeutics?

Larimar Therapeutics’s largest shareholders are Deerfield management company, l.p. (series c) (21.23M shares, 33.19%), Ra capital management (6.05M shares, 9.45%), and Blue owl capital lp (4.93M shares, 7.70%). Together, they hold 50.35% of Larimar Therapeutics’s total shares outstanding.

Does Blackrock own Larimar Therapeutics?

Yes, BlackRock owns 5.85% of Larimar Therapeutics, totaling 3.13M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 22.72M$. In the last quarter, BlackRock increased its holdings by 795.19K shares, a 34.00% change.

Who is Larimar Therapeutics’s biggest shareholder by percentage of total assets invested?

Blue owl capital lp is Larimar Therapeutics’s biggest shareholder by percentage of total assets invested, with 4.60% of its assets in 4.93M Larimar Therapeutics shares, valued at 14.24M$.

Who is the top mutual fund holder of Larimar Therapeutics shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Larimar Therapeutics shares, with 2.28% of its total shares outstanding invested in 1.95M Larimar Therapeutics shares.

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