Krylov Sergei
- SEC CIK
- 0001594869
No open-market purchases or sales filed in the past year.
Current role at each company
- ACDC ProFrac Holding Corp.Directoras of May 29, 2026
- DWSN Dawson Geophysical CoDirectoras of May 20, 2025
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Krylov Sergei as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
DWSN Dawson Geophysical Co
Director1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2023 (view filing)6:05 AM ET | Jun 14 | 16 days | Krylov Sergei and 6 othersDirector | PPurchaseClass A common stock, par value $0.01 per share | +8.89K | $2.23 | +$19.8K | 0.0%18.8M after | AmendedDuplicate filing |
ACDC ProFrac Holding Corp.
Director1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 19, 2022 (view filing) | May 17 | 2 days | Krylov SergeiDirector | PPurchaseClass A common stock, par value $0.01 per share | +1.50K | $18.00 | +$27.0K | New position1.50K after |