Form 4 for RGEN REPLIGEN CORP
Accepted 2026-05-18 16:05:08 ET · period of report 2026-05-14 · accession 0001193125-26-228897 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-05-18 16:05 | 2026-05-14 | RGEN | Konstantinov Konstantin | Dir | A - Grant | $0.00 | +995 | 3,889 | +34% | $0 |
| D | 2026-05-18 16:05 | 2026-05-14 | RGEN | Konstantinov Konstantin | Dir | A - Grant | $0.00 | +2,239 | 2,239 | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-05-14 | A | A | 995 | $0.00 | 3,889 | D | — | — | (F1) Mr. Konstantinov was awarded 995 restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Repligen Corporation's Common Stock. The restricted stock units vest on the earlier of May 14, 2027, one year from the grant date, or the date of the next annual meeting of the Company's shareholders, which has not yet been determined. The restricted stock units may be settled only by delivering shares of Repligen Corporation's Common Stock, and thus, the grant is being reported in Table 1 as allowed per SEC guidance. |
| 2 | Derivative | Stock Option (Right to Buy) | 2026-05-14 | A | A | 2,239 | $0.00 | 2,239 | D | $103.38 · 2027-05-14 to 2036-05-14 | 2,239 Common Stock | (F2) Award vests in full on the earlier of May 14, 2027, one year from grant date, or on the date of the next annual meeting of the Company's shareholders, which has not yet been determined. |