RLYB Rallybio Corp: institutional ownership and insider trading
37 funds reported holding $65.0M of Rallybio Corp in their latest 13F filings; in Q2 2026 funds net sold $9.62M, with 9 new positions and 10 funds selling out; over the last 12 months insiders bought $4.23M and sold $3.99K on the open market; over its last four quarters it reported revenue of $646K and net income of $45.6M.
RLYB revenue and earnings
- Quarter ended Jun 30, 2026: revenue $0, net income $43.7M, EPS 7.53
- Quarter ended Mar 31, 2026: revenue $212K, net income −$8.28M, EPS -1.46
- Quarter ended Dec 31, 2025: revenue $222K, net income −$5.85M, EPS -0.04
- Quarter ended Sep 30, 2025: revenue $212K, net income $16.0M, EPS 0.36
Famous investors holding RLYB
- Andreas Halvorsen (Viking Global Investors): $8.39M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $3.20M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $1.16M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $266K, 0.0% of the portfolio
Largest institutional holders of RLYB
- ADAR1 Capital Management, LLC — $14.8M
- FMR LLC — $12.7M
- VIKING GLOBAL INVESTORS LP — $8.39M
- TPG GP A, LLC — $6.06M
- Pivotal bioVenture Partners Investment Advisor LLC — $4.81M
- RENAISSANCE TECHNOLOGIES LLC — $3.20M
- Nantahala Capital Management, LLC — $3.01M
- VANGUARD CAPITAL MANAGEMENT LLC — $2.76M
- Almitas Capital LLC — $1.93M
- Rangeley Capital, LLC — $1.68M
Recent RLYB insider trades
- May 19, 2026: Schneeberger Daniel bought 16,209 shares ($227K)
- May 15, 2026: Schneeberger Daniel bought 79,559 shares ($1.11M)
- May 12, 2026: Schneeberger Daniel bought 50,800 shares ($711K)
- May 5, 2026: Schneeberger Daniel bought 155,905 shares ($2.18M)
5%+ owners
- ADAR1 Capital Management, LLC: 17.5% (Schedule 13G, filed Jun 5, 2026)
- FMR LLC: 15.0% (Schedule 13G/A, filed Aug 6, 2026)
- VIKING GLOBAL INVESTORS LP: 10.0% (Schedule 13G/A, filed May 15, 2026)
Who owns the most RLYB stock?
The largest institutional holders of Rallybio Corp in the latest 13F filings are ADAR1 Capital Management, LLC ($14.8M), FMR LLC ($12.7M), VIKING GLOBAL INVESTORS LP ($8.39M).
Are insiders buying or selling RLYB?
Over the last 12 months insiders bought $4.23M and sold $3.99K of Rallybio Corp stock on the open market (SEC Form 4).
Which famous investors own RLYB?
Andreas Halvorsen, Renaissance Technologies, Ken Griffin, Two Sigma.
What was RLYB's revenue last quarter?
Rallybio Corp reported revenue of $0 for the quarter ended June 30, 2026, with net income of $43.7M.