Konstantin Konstantinov
CIK 1774649 · View on SEC EDGAR ↗
Insider
First SEC filing: May 22, 2023 · Latest: May 22, 2023
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 11 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 14, 2026 | RGEN | A | 2,239 | — | — | 2,239 Direct | — | Acquired | (price as of 2026-08-21) |
| May 14, 2026 | RGEN | A | 995 | — | — | 3,889 Direct | +34.38% | Acquired | (price as of 2026-08-21) |
| May 15, 2025 | RGEN | A | 1,800 | — | — | 1,800 Direct | — | Acquired | (price as of 2026-08-21) |
| May 15, 2025 | RGEN | A | 973 | — | — | 2,894 Direct | +50.65% | Acquired | (price as of 2026-08-21) |
| May 16, 2024 | RGEN | A | 1,376 | — | — | 1,376 Direct | — | Acquired | (price as of 2026-08-21) |
| May 16, 2024 | RGEN | A | 701 | — | — | 1,921 Direct | +57.46% | Acquired | (price as of 2026-08-21) |
| May 18, 2023 | RGEN | A | 1,487 | — | — | 1,487 Direct | — | Acquired | (price as of 2026-08-21) |
| May 18, 2023 | RGEN | A | 686 | — | — | 1,220 Direct | +128.46% | Acquired | (price as of 2026-08-21) |
| May 26, 2022 | RGEN | A | 2,498 | — | — | 2,498 Direct | — | Acquired | (price as of 2026-08-21) |
| May 26, 2022 | RGEN | A | 1,298 | — | — | 1,298 Direct | — | Acquired | (price as of 2026-08-21) |
| May 26, 2022 | RGEN | A | 534 | — | — | 534 Direct | — | Acquired | (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| May 14, 2026 | RGEN | Stock Option (Right to Buy) | Common Stock (2,239) | $103.38 | May 14, 2036 | 2,239 | Acquired |
| May 15, 2025 | RGEN | Stock Option (Right to Buy) | Common Stock (1,800) | $123.26 | May 15, 2035 | 1,800 | Acquired |
| May 16, 2024 | RGEN | Stock Option (Right to Buy) | Common Stock (1,376) | $171.03 | May 16, 2034 | 1,376 | Acquired |
| May 18, 2023 | RGEN | Stock Option (Right to Buy) | Common Stock (1,487) | $156.63 | May 18, 2033 | 1,487 | Acquired |
| May 26, 2022 | RGEN | Stock Option (Right to Buy) | Common Stock (2,498) | $159.17 | May 26, 2032 | 2,498 | Acquired |
| May 26, 2022 | RGEN | Stock Option (Right to Buy) | Common Stock (1,298) | $159.17 | May 26, 2032 | 1,298 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).