NASDAQ: RLYB
Rallybio Corp Stock Ownership - Who owns Rallybio?

Insider buying vs selling

Have Rallybio Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Jonathan I. LieberChief Financial Officer2026-02-23789$5.06
$3.99kSell

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Net Insider Buy/Sell (L12M) Ownership

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RLYB Shareholders

What type of owners hold Rallybio Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Kush Parmar196.54%10,396,074$91.28MInsider
5am Opportunities I LP120.53%6,375,811$55.98MInsider
Ronald Hunt81.21%4,295,514$37.71MInsider
Viking Global Investors LP79.30%4,194,777$36.83MInsider
Viking Global Investors LP79.30%4,194,777$36.83MInstitution
Robert Lorne Hopfner74.90%3,961,799$34.78MInsider
Johnson Johnson68.74%3,636,363$31.93MInstitution
5am Partners V LLC68.64%3,630,724$31.88MInsider
5am Venture Management LLC68.64%3,630,724$31.88MInstitution
Tpg GP A LLC57.25%3,028,414$26.59MInstitution

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RLYB vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
RLYB38.31%61.69%Net SellingNet Selling
ATOS60.46%39.54%Net Buying
XLO53.31%46.69%Net BuyingNet Buying
NTRB2.99%48.96%
DWTX0.21%76.92%

Rallybio Stock Ownership FAQ

Who owns Rallybio?

Rallybio (NASDAQ: RLYB) is owned by 471.32% institutional shareholders, 758.94% Rallybio insiders, and 0.00% retail investors. Kush Parmar is the largest individual Rallybio shareholder, owning 10.40M shares representing 196.54% of the company. Kush Parmar's Rallybio shares are currently valued at $91.49M.

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