Konstantin Konstantinov
CIK 1774649 · Chief Technology Officer · last filed 2026-05-18
Konstantin Konstantinov is a Chief Technology Officer who has filed 14 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for RGEN, was dated May 18, 2026. Across all open-market trades the lifetime net is −$192.5K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $507.9K across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$507.9K
2
14
-$192.5K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RGEN | Director | 3,889 | $130.59 | $507.9K | $0 | 5 | 2026-05-18 |
| Codiak BioSciences, Inc. (CDAK) Delisted | Chief Technology Officer | 0 | $0.06 | $0 | -$192.5K | 9 | 2023-03-30 |
Recent Filings
14 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-18 | RGEN | Grant (A) | +995 | $0 | EDGAR |
| 2025-05-19 | RGEN | Grant (A) | +973 | $0 | EDGAR |
| 2024-05-20 | RGEN | Grant (A) | +701 | $0 | EDGAR |
| 2023-05-22 | RGEN | Grant (A) | +686 | $0 | EDGAR |
| 2023-03-30 | Codiak BioSciences, Inc. (CDAK) Delisted | Sell (S) | −9,364 | -$1.9K | EDGAR |
| 2023-02-21 | Codiak BioSciences, Inc. (CDAK) Delisted | Mixed | +5,701 | -$3.7K | EDGAR |
| 2023-01-26 | Codiak BioSciences, Inc. (CDAK) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-01-23 | Codiak BioSciences, Inc. (CDAK) Delisted | Mixed | +1,731 | -$615 | EDGAR |
| 2022-09-20 | Codiak BioSciences, Inc. (CDAK) Delisted | Grant (A) | — | $0 | EDGAR |
| 2022-05-31 | RGEN | Grant (A) | +534 | $0 | EDGAR |