Rallybio Corp (RLYB) Insider Ownership

Historic Insider Ownership Trends

RLYB's three largest insider shareholders as of April 22, 2026 are Global Investors Lp Viking (TenPercentOwner, 524.35K shares), Global Investors Lp Viking (TenPercentOwner, 524.35K shares), Opportunities I, L.P. 5am (TenPercentOwner, 497.59K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Global Investors Lp Viking - 0 524,347 02 Aug, 2021
Opportunities I, L.P. 5Am - 0 497,591 10 Feb, 2022
Opportunities I, L.P. 5Am - 0 497,591 10 Feb, 2022
Opportunities I, L.P. 5Am - 0 497,591 10 Feb, 2022
Opportunities I, L.P. 5am - 0 497,591 10 Feb, 2022
Opportunities I, L.P. 5Am - 0 497,591 10 Feb, 2022
Kush Parmar - 0 497,591 10 Feb, 2022
Opportunities I, L.P. 5Am - 0 466,341 07 Jun, 2022
Opportunities I, L.P. 5am - 0 466,341 07 Jun, 2022
Opportunities I, L.P. 5Am - 0 466,341 07 Jun, 2022
Opportunities I, L.P. 5Am - 0 466,341 07 Jun, 2022
Opportunities I, L.P. 5Am - 0 466,341 07 Jun, 2022
Timothy M Shannon - 0 301,214 04 Aug, 2021
Partners V, Llc 5am - 0 297,371 09 Mar, 2023
Kush Parmar - 0 297,371 09 Mar, 2023
Ronald Hunt - 0 287,700 04 Aug, 2021
Robert Lorne Hopfner - 0 283,426 04 Aug, 2021
Llc Fmr - 0 211,799 04 Aug, 2021
Kush Parmar - 0 156,469 07 Jun, 2022
Jeffrey M Fryer - 0 5,881 23 Mar, 2022
Jonathan I Lieber Chief Financial Officer 4,115 0 23 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
18 Feb, 2026 Jonathan I Lieber Common Stock A 2,500 $0.00 4,904 D A
23 Feb, 2026 Jonathan I Lieber Common Stock D 789 $5.06 4,115 D S
18 Feb, 2026 Ronald Hunt Option (Right to Buy) A 14,305 $3.60 14,305 D A
18 Feb, 2026 Martin Mackay Option (Right to Buy) A 18,055 $3.60 18,055 D A
13 May, 2025 Paula Soteropoulos Option (Right to Buy) A 28,500 $0.00 3,563 D A
13 May, 2025 Robert Lorne Hopfner Option (Right to Buy) A 28,500 $0.00 3,563 D A
13 May, 2025 Hui Liu Option (Right to Buy) A 28,500 $0.00 3,563 D A
13 May, 2025 Helen M Boudreau Option (Right to Buy) A 28,500 $0.00 3,563 D A
13 May, 2025 Ronald Hunt Option (Right to Buy) A 28,500 $0.00 3,563 D A
13 May, 2025 Christine A Nash Option (Right to Buy) A 28,500 $0.00 3,563 D A
13 May, 2025 Martin Mackay Option (Right to Buy) A 28,500 $0.00 3,563 D A
13 May, 2025 Wendy Chung Option (Right to Buy) A 28,500 $0.00 3,563 D A
14 Feb, 2025 Steven Ryder Option (Right to Buy) A 180,000 $0.00 22,500 D A
14 Feb, 2025 Stephen Uden Option (Right to Buy) A 453,700 $0.00 56,713 D A
14 Feb, 2025 Jonathan I Lieber Option (Right to Buy) A 180,000 $0.00 22,500 D A
02 Jan, 2025 Martin Mackay Option (Right to Buy) A 92,857 $0.70 11,607 D A
02 Jan, 2025 Ronald Hunt Option (Right to Buy) A 73,571 $0.70 9,196 D A
02 Jan, 2025 Hui Liu Option (Right to Buy) A 67,857 $0.70 8,482 D A
02 Jan, 2025 Robert Lorne Hopfner Option (Right to Buy) A 73,571 $0.70 9,196 D A
15 May, 2024 Helen M Boudreau Option (Right to Buy) A 16,500 $0.00 2,063 D A