WallStreetZenWallStreetZen

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

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Rallybio Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Helen M. BoudreauDirector2026-07-063,562$2.38
$8.48kBuy
Adar1 Capital Management LLC10% Owner2026-05-19200$13.80
$2.76kBuy
Adar1 Capital Management LLC10% Owner2026-05-1910,000$13.98
$139.82kBuy
Adar1 Capital Management LLC10% Owner2026-05-186,009$13.98
$83.98kBuy
Adar1 Capital Management LLC10% Owner2026-05-15100$13.80
$1.38kBuy
Adar1 Capital Management LLC10% Owner2026-05-15200$13.95
$2.79kBuy
Adar1 Capital Management LLC10% Owner2026-05-134,081$13.80
$56.31kBuy
Adar1 Capital Management LLC10% Owner2026-05-1375,178$14.00
$1.05MBuy
Adar1 Capital Management LLC10% Owner2026-05-12800$13.83
$11.06kBuy
Adar1 Capital Management LLC10% Owner2026-05-115,100$14.00
$71.39kBuy

1 of 2

RLYB insiders have bought more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when RLYB insiders and whales buy or sell their stock.

RLYB Shareholders

What type of owners hold Rallybio Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Kush Parmar196.22%10,396,074$165.92MInsider
5am Opportunities I LP120.34%6,375,811$101.76MInsider
Ronald Hunt81.08%4,295,514$68.56MInsider
Viking Global Investors LP79.17%4,194,777$66.95MInsider
Robert Lorne Hopfner74.78%3,961,799$63.23MInsider
5am Partners V LLC68.53%3,630,724$57.95MInsider
5am Ventures V LP52.56%2,784,626$44.44MInsider
Timothy M. 1. Shannon45.48%2,409,712$38.46MInsider
Adar1 Capital Management LLC17.48%926,352$14.78MInsider
Fmr LLC14.98%793,451$12.66MInstitution

1 of 3

RLYB vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
RLYB10.21%89.79%Net BuyingNet Buying
ACET28.27%71.73%Net Buying
TELO3.26%23.07%Net Buying
OKYO1.12%98.88%Net BuyingNet Buying
KLRS5.85%94.15%Net BuyingNet Buying
View Top Biotech Stocks

Rallybio Stock Ownership FAQ

Who owns Rallybio?

Rallybio (NASDAQ: RLYB) is owned by 88.08% institutional shareholders, 774.88% Rallybio insiders, and 0.00% retail investors. Kush Parmar is the largest individual Rallybio shareholder, owning 10.40M shares representing 196.22% of the company. Kush Parmar's Rallybio shares are currently valued at $167.06M.

If you're new to stock investing, here's how to buy Rallybio stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.