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ANTHONY JAMES BEST

CIK 1364843 · Chief Executive Officer · last filed 2026-05-21

"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.

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Disclosed Exposure

$8.21M

Companies

3

Total Filings

62

Lifetime Open-Market Net

$154.2K

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
PUMP Director 139,120 $15.51 $2.16M $0 16 2026-05-21
NPK International Inc. (NR) Delisted Director 237,809 $7.25 $1.72M $0 8 2022-05-20
SM Chief Executive Officer 194,375 $31.15 $6.05M $154.2K 38 2014-08-11

Recent Filings · Page 2 of 7

62 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2021-05-21 NPK International Inc. (NR) Delisted Grant (A) +38,872 $0 EDGAR
2021-05-20 PUMP Grant (A) — $0 EDGAR
2021-04-27 PUMP Exer (M) +32,336 $0 EDGAR
2020-06-16 PUMP Exer (M) +7,878 $0 EDGAR
2020-05-22 NPK International Inc. (NR) Delisted Grant (A) +34,638 $0 EDGAR
2020-04-28 PUMP Grant (A) — $0 EDGAR
2019-07-26 PUMP Grant (A) — $0 EDGAR
2019-05-28 NPK International Inc. (NR) Delisted Grant (A) +23,160 $0 EDGAR
2018-06-19 PUMP Grant (A) +6,743 $0 EDGAR
2018-05-21 NPK International Inc. (NR) Delisted Grant (A) +15,813 $0 EDGAR
Showing 11–20 of 62
Page 2 of 7
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.