Sergei Krylov

CIK 1594869 · President and CEO · last filed 2026-05-29

Sergei Krylov is a President and CEO who has filed 20 SEC Form 4 insider transactions across 4 companies since 2022. The most recent filing, for ACDC, was dated May 29, 2026. Across all open-market trades the lifetime net is +$27.0K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $829.3K 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.

Disclosed Exposure

$829.3K

Companies

4

Total Filings

20

Lifetime Open-Market Net

$27.0K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
ACDC	Director	95,909	$7.55	$724.1K	$0	3	2026-05-29
DWSN	Director	22,720	$4.63	$105.2K	$0	2	2025-05-20
ProFrac Holding Corp. (ACDCW) Delisted	Director	38,443	$0.00	$108	$0	1	2023-06-05
ProFrac Holding Corp. (PFHC) Delisted	Director	25,666	$22.08	$566.7K	$27.0K	2	2022-05-26

Recent Filings

20 filings

Form 4 transactions across all companies, newest first.

Filed	Symbol	Action	Net Shares	Net $	Link
2026-05-29	ACDC	Grant (A)	+22,421	$0	EDGAR
2025-06-02	ACDC	Grant (A)	+18,916	$0	EDGAR
2025-05-20	DWSN	Grant (A)	+9,250	$12.0K	EDGAR
2024-10-04	DWSN	Grant (A)	+19,165	$0	EDGAR
2024-06-04	ACDC	Grant (A)	+16,129	$0	EDGAR
2023-06-05	ProFrac Holding Corp. (ACDCW) Delisted	Grant (A)	+12,777	$0	EDGAR
2022-05-26	ProFrac Holding Corp. (PFHC) Delisted	Grant (A)	+24,166	$0	EDGAR
2022-05-19	ProFrac Holding Corp. (PFHC) Delisted	Buy (P)	+1,500	$27.0K	EDGAR
2020-01-03	—	Mixed	−130,568	$0
2019-01-25	—	Mixed	−76,388	$0

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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.