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Larimar Therapeutics Ownership | Who Owns Larimar Therapeutics?

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Larimar Therapeutics Ownership Summary

Larimar Therapeutics is owned by 92.36% institutional investors, 1.15% insiders, and 6.50% retail investors. Deerfield management company, l.p. (series c) is the largest institutional shareholder, holding 48.81% of LRMR shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.12% of its assets in Larimar Therapeutics shares.

LRMR Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockLarimar Therapeutics92.36%1.15%6.50%
SectorHealthcare Stocks 244.59%12.11%-156.70%
IndustryBiotech Stocks 379.61%11.70%-291.31%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Deerfield management company, l.p. (series c)35.61M48.81%$160.23M
Blue owl capital lp7.12M9.76%$32.04M
Ra capital management6.05M9.44%$19.53M
Blackrock3.13M5.85%$22.72M
Opaleye management3.72M5.81%$10.56M
Blackrock funding, inc. /de3.75M5.14%$16.88M
Millennium management3.63M4.97%$16.31M
Driehaus capital management2.93M4.02%$13.20M
Vanguard group3.05M3.89%$11.61M
Dafna capital management2.03M2.78%$9.13M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Blue owl capital lp7.12M8.61%$32.04M
Gem investment advisors854.23K3.78%$3.84M
Dafna capital management2.03M2.08%$9.13M
Deerfield management company, l.p. (series c)35.61M1.89%$160.23M
Opaleye management3.72M1.49%$10.56M
Altium capital management lp505.00K0.55%$1.95M
Ra capital management6.05M0.24%$19.53M
Soleus capital management1.07M0.19%$4.80M
Sphera funds management260.38K0.18%$841.04K
Diadema partners lp166.64K0.13%$749.87K

Top Buyers

HolderShares% AssetsChange
Deerfield management company, l.p. (series c)35.61M1.89%5.00M
Driehaus capital management2.93M0.10%2.40M
Dafna capital management2.03M2.08%1.09M
Soleus capital management1.07M0.19%1.07M
Marshall wace, llp933.46K0.00%933.46K

Top Sellers

HolderShares% AssetsChange
Janus henderson group---5.57M
Aigh capital management---3.00M
Rtw investments, lp1.50M0.07%-1.63M
Millennium management3.63M0.01%-1.58M
Deep track capital, lp---1.50M

New Positions

HolderShares% AssetsChangeValue
Soleus capital management1.07M0.19%1.07M$4.80M
Marshall wace, llp933.46K0.00%933.46K$4.20M
Qube research847.64K0.00%847.64K$3.81M
Summittx capital379.76K0.05%379.76K$1.71M
Burkehill global management, lp300.00K0.07%300.00K$1.35M

Sold Out

HolderChange
National bank of canada /fi/-2.00
Twin peaks wealth advisors-2.00
Larson financial group-4.00
Nelson, van denburg & campbell wealth management group-5.00
Wealth preservation advisors-10.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 2026170-95,942,2249.33%920.87%1031.98%39-7.14%
Mar 31, 202658-57.35%9,152,782-87.36%120.15%35-45.31%13-70.45%
Dec 31, 202591-40.91%24,571,182-71.27%310.18%39-58.06%3114.81%
Sep 30, 202514724.58%83,602,86738.89%1301.47%8722.54%2623.81%
Jun 30, 202512418.10%62,303,7192.43%971.08%7250.00%24-22.58%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv2.21M2.12%-130.70K
Vanguard Morn Total Stk Mkt Idx Investor2.21M2.12%-130.70K
Vanguard MStar Total Stk Mkt Idx Invest2.21M2.12%-
Vanguard US Total Market Shares ETF1.34M2.10%-
iShares Russell 2000 ETF1.69M1.62%-29.95K
Fidelity Enhanced Small Cap Core ETF880.94K0.85%3.40K
Heptagon Driehaus US Micro Cap Eq C$ Acc873.70K0.84%-
Fidelity Advisor Biotechnology I524.80K0.82%-
CREF Total Global Stock Account R3757.60K0.73%-
Vanguard Institutional Extnd Mkt Idx Tr699.47K0.67%-

Recent Insider Transactions

DateNameRoleActivityValue
Jul 06, 2026Hamilton Thomas Edward-Buy$166.89K
Feb 27, 2026Flynn James E * Director by DeputizationBuy$10.00M
Feb 27, 2026Flynn James E * Director by DeputizationBuy$5.42M
Feb 27, 2026Flynn James E * Director by DeputizationBuy$5.42M
Feb 27, 2026Flynn James E * Director by DeputizationBuy$4.16M

Insider Transactions Trends

DateBuySell
2026 Q31-
2026 Q2--
2026 Q17-
2025 Q33-
2025 Q2--

LRMR Ownership FAQ

Who Owns Larimar Therapeutics?

Larimar Therapeutics shareholders are primarily institutional investors at 92.36%, followed by 1.15% insiders and 6.49% retail investors. The average institutional ownership in Larimar Therapeutics's industry, Biotech Stocks , is 379.61%, 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) (35.61M shares, 48.81%), Blue owl capital lp (7.12M shares, 9.76%), and Ra capital management (6.05M shares, 9.44%). Together, they hold 68.01% 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 8.61% of its assets in 7.12M Larimar Therapeutics shares, valued at 32.04M$.

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 2.12% of its total shares outstanding invested in 2.21M Larimar Therapeutics shares.

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