NASDAQ: RTSN
Retension Pharmaceuticals Inc Stock Ownership - Who owns Retension Pharmaceuticals?

Insider buying vs selling

Have Retension Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Franklin M. BergerDirector2026-10-1310,000$12.00
$120.00kBuy
Eric L. KellerCEO2026-10-1320,800$12.00
$249.60kBuy

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Net Insider Buy/Sell (L12M) Ownership

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RTSN Shareholders

What type of owners hold Retension Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Eric L. Keller5.89%464,407$5.26MInsider
Paul Sweetnam5.19%409,243$4.63MInsider
Franklin M. Berger0.29%22,517$254.89kInsider
Michael J. Berendt0.08%6,666$75.46kInsider
Donald Olds0.07%5,637$63.81kInsider
Sabine Bisson0.05%4,115$46.58kInsider

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RTSN vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AARD0.04%46.39%Net SellingNet Selling
ABVC0.00%78.89%
ABVX0.07%0.00%
ACET0.04%99.96%Net Buying
TRXB0.00%32.83%Net BuyingNet Buying

Retension Pharmaceuticals Stock Ownership FAQ

Who owns Retension Pharmaceuticals?

Retension Pharmaceuticals (NASDAQ: RTSN) is owned by 0.00% institutional shareholders, 11.58% Retension Pharmaceuticals insiders, and 88.42% retail investors. Eric L. Keller is the largest individual Retension Pharmaceuticals shareholder, owning 464,407.00 shares representing 5.89% of the company. Eric L. Keller's Retension Pharmaceuticals shares are currently valued at $5.40M.

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