As of September 09, 2026, Rallybio's top three insider holders are Capital Management, Llc Adar1 (TenPercentOwner, 779.78K shares), Opportunities I, L.P. 5Am (TenPercentOwner, 497.59K shares), Kush Parmar (Director, 497.59K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Capital Management, Llc Adar1 | TenPercentOwner | 0 | 779,784 | 779,784 | 36.1% | 06 May, 2026 |
| 2 | Opportunities I, L.P. 5Am | TenPercentOwner | 0 | 466,341 | 466,341 | 21.6% | 07 Jun, 2022 |
| 3 | Timothy M Shannon | Director | 0 | 301,214 | 301,214 | 14.0% | 04 Aug, 2021 |
| 4 | Kush Parmar | Director | 0 | 297,371 | 297,371 | 13.8% | 09 Mar, 2023 |
| 5 | Partners V, Llc 5Am | TenPercentOwner | 0 | 297,371 | 297,371 | 13.8% | 09 Mar, 2023 |
| 6 | Helen M Boudreau | Director | 6,542 | 0 | 6,542 | 0.3% | 10 Jul, 2026 |
| 7 | Jeffrey M Fryer | Officer | 0 | 5,881 | 5,881 | 0.3% | 23 Mar, 2022 |
| 8 | Jonathan I Lieber | Chief Financial Officer | 4,115 | 0 | 4,115 | 0.2% | 23 Feb, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 06 Jul, 2026 | Helen M Boudreau | Director | Acquired M | 3,562 | $2.38 | $8.48K | 6,542 | Direct |
| 06 Jul, 2026 | Helen M Boudreau | Director | Disposed M | 3,562 | $0.00 | $0 | 0 | Direct |
| 18 Feb, 2026 | Jonathan I Lieber | Chief Financial Officer | Acquired A | 2,500 | $0.00 | $0 | 4,904 | Direct |
| 23 Feb, 2026 | Jonathan I Lieber | Chief Financial Officer | Disposed S | 789 | $5.06 | $3.99K | 4,115 | Direct |
| 18 Feb, 2026 | Ronald Hunt | Director | Acquired A | 14,305 | $3.60 | $51.50K | 14,305 | Direct |
| 18 Feb, 2026 | Martin Mackay | Director | Acquired A | 18,055 | $3.60 | $65.00K | 18,055 | Direct |
| 13 May, 2025 | Wendy Chung | Director | Acquired A | 28,500 | $0.00 | $0 | 3,563 | Direct |
| 13 May, 2025 | Christine A Nash | Director | Acquired A | 28,500 | $0.00 | $0 | 3,563 | Direct |
| 13 May, 2025 | Helen M Boudreau | Director | Acquired A | 28,500 | $0.00 | $0 | 3,563 | Direct |
| 13 May, 2025 | Martin Mackay | Director | Acquired A | 28,500 | $0.00 | $0 | 3,563 | Direct |
| 13 May, 2025 | Robert Lorne Hopfner | Director | Acquired A | 28,500 | $0.00 | $0 | 3,563 | Direct |
| 13 May, 2025 | Ronald Hunt | Director | Acquired A | 28,500 | $0.00 | $0 | 3,563 | Direct |
| 13 May, 2025 | Hui Liu | Director | Acquired A | 28,500 | $0.00 | $0 | 3,563 | Direct |
| 14 Feb, 2025 | Stephen Uden | Chief Executive Officer | Acquired A | 453,700 | $0.00 | $0 | 56,713 | Direct |
| 14 Feb, 2025 | Stephen Uden | Chief Executive Officer | Acquired A | 453,700 | $0.00 | $0 | 56,713 | Direct |
| 14 Feb, 2025 | Stephen Uden | Chief Executive Officer | Acquired A | 453,700 | $0.00 | $0 | 56,713 | Direct |
| 14 Feb, 2025 | Jonathan I Lieber | Chief Financial Officer | Acquired A | 180,000 | $0.00 | $0 | 22,500 | Direct |
| 14 Feb, 2025 | Steven Ryder | Chief Medical Officer | Acquired A | 180,000 | $0.00 | $0 | 22,500 | Direct |
| 14 Feb, 2025 | Steven Ryder | Chief Medical Officer | Acquired A | 180,000 | $0.00 | $0 | 22,500 | Direct |
| 14 Feb, 2025 | Stephen Uden | Chief Executive Officer | Acquired A | 453,700 | $0.00 | $0 | 56,713 | Direct |