RLYB

Rallybio Corp

Company with tickers: RLYB

Market Cap

$84.77M

Shares Outstanding

5,298,137

CIK

1739410

CUSIP

75120L209

13F Activity (30d)

1 filings 1 filers

Website

Visit website

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

Net shares bought

5.71%

Net buy value

+$4,229,263

Date	Insider	Role	Type	Shares	Price	Value	After
2026-05-19	ADAR1 Capital Management, LLC	10% Owner	Buy	10,000	$13.98	$139,822	926,152
2026-05-19	ADAR1 Capital Management, LLC	10% Owner	Buy	200	$13.80	$2,760	926,352
2026-05-18	ADAR1 Capital Management, LLC	10% Owner	Buy	6,009	$13.98	$83,981	916,152
2026-05-15	ADAR1 Capital Management, LLC	10% Owner	Buy	100	$13.80	$1,380	909,943
2026-05-15	ADAR1 Capital Management, LLC	10% Owner	Buy	200	$13.95	$2,790	910,143
2026-05-13	ADAR1 Capital Management, LLC	10% Owner	Buy	4,081	$13.80	$56,315	834,665
2026-05-13	ADAR1 Capital Management, LLC	10% Owner	Buy	75,178	$14.00	$1,052,492	909,843
2026-05-12	ADAR1 Capital Management, LLC	10% Owner	Buy	800	$13.83	$11,063	830,584
2026-05-11	ADAR1 Capital Management, LLC	10% Owner	Buy	25,000	$14.00	$350,000	809,884
2026-05-11	ADAR1 Capital Management, LLC	10% Owner	Buy	19,900	$14.00	$278,600	829,784
2026-05-11	ADAR1 Capital Management, LLC	10% Owner	Buy	5,100	$14.00	$71,392	784,884
2026-05-05	ADAR1 Capital Management, LLC	10% Owner	Buy	35,101	$14.00	$491,260	779,784
2026-05-04	ADAR1 Capital Management, LLC	10% Owner	Buy	3,900	$13.90	$54,201	627,779
2026-05-04	ADAR1 Capital Management, LLC	10% Owner	Buy	116,904	$13.97	$1,633,207	744,683
2026-02-23	Lieber Jonathan I	Chief Financial Officer	Sell	789	$5.06	$3,992	4,115
2026-02-18	MACKAY MARTIN	Director	Award	18,055	$3.60	$64,998	18,055
2026-02-18	Lieber Jonathan I	Chief Financial Officer	Award	2,500	—	—	4,904
2026-02-18	HUNT RONALD	Director	Award	14,305	$3.60	$51,498	14,305
2025-05-13	Liu Hui	Director	Award	28,500	—	—	28,500
2025-05-13	Soteropoulos Paula	Director	Award	28,500	—	—	28,500
2025-05-13	Hopfner Robert Lorne	Director	Award	28,500	—	—	28,500
2025-05-13	MACKAY MARTIN	Director	Award	28,500	—	—	28,500
2025-05-13	Boudreau Helen M	Director	Award	28,500	—	—	28,500
2025-05-13	Nash Christine A	Director	Award	28,500	—	—	28,500
2025-05-13	HUNT RONALD	Director	Award	28,500	—	—	28,500
2025-05-13	Chung Wendy	Director	Award	28,500	—	—	28,500
2025-02-14	Uden Stephen	Director, Chief Executive Officer	Award	453,700	—	—	453,700
2025-02-14	Ryder Steven	Chief Medical Officer	Award	180,000	—	—	180,000
2025-02-14	Lieber Jonathan I	Chief Financial Officer	Award	180,000	—	—	180,000
2025-01-02	HUNT RONALD	Director	Award	73,571	$0.70	$51,500	73,571
2025-01-02	Hopfner Robert Lorne	Director	Award	73,571	$0.70	$51,500	73,571
2025-01-02	MACKAY MARTIN	Director	Award	92,857	$0.70	$65,000	92,857
2025-01-02	Liu Hui	Director	Award	67,857	$0.70	$47,500	67,857
2024-05-15	HUNT RONALD	Director	Award	16,500	—	—	16,500
2024-05-15	Soteropoulos Paula	Director	Award	16,500	—	—	16,500
2024-05-15	Nash Christine A	Director	Award	16,500	—	—	16,500
2024-05-15	Hopfner Robert Lorne	Director	Award	16,500	—	—	16,500
2024-05-15	Liu Hui	Director	Award	16,500	—	—	16,500
2024-05-15	Chung Wendy	Director	Award	16,500	—	—	16,500
2024-05-15	Boudreau Helen M	Director	Award	16,500	—	—	16,500
2024-05-15	PARMAR KUSH	Director	Award	16,500	—	—	16,500
2024-02-15	Ryder Steven	Chief Medical Officer	Award	120,000	—	—	120,000
2024-02-15	Lieber Jonathan I	Chief Financial Officer	Award	120,000	—	—	120,000
2024-02-15	Uden Stephen	Director, Chief Executive Officer	Award	216,000	—	—	216,000
2024-02-15	MACKAY MARTIN	Director	Award	216,000	—	—	216,000
2024-01-02	HUNT RONALD	Director	Award	29,096	$1.77	$51,500	29,096
2024-01-02	PARMAR KUSH	Director	Award	27,118	$1.77	$47,999	27,118
2023-05-17	Hopfner Robert Lorne	Director	Award	15,490	—	—	15,490
2023-05-17	Boudreau Helen M	Director	Award	15,490	—	—	15,490
2023-05-17	Chung Wendy	Director	Award	12,353	—	—	12,353

Showing 1–50 of 168 transactions