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Darrell E Hollek

CIK 1640299 · EVP, Operations · last filed 2026-05-13

Darrell E Hollek is an EVP, Operations who has filed 16 SEC Form 4 insider transactions across 3 companies since 2015. The most recent filing, for OIS, was dated May 13, 2026. Across all open-market trades the lifetime net is −$489.3K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.0M 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.

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Disclosed Exposure

$2.02M

Companies

3

Total Filings

16

Lifetime Open-Market Net

-$489.3K

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
OIS Director 120,833 $8.02 $969.1K -$493.6K 9 2026-05-13
APC EVP, Operations 51,367 $20.20 $1.04M $0 5 2017-05-01
WES Director 289 $47.06 $13.6K $4.3K 1 2016-04-26

Recent Filings

16 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-05-13 OIS Grant (A) +16,760 $0 EDGAR
2026-04-01 OIS Sell (S) −42,511 -$493.6K EDGAR
2026-03-31 OIS Notice (144) −42,511 -$493.1K EDGAR
2025-05-14 OIS Grant (A) +31,185 $0 EDGAR
2024-05-08 OIS Grant (A) +33,259 $0 EDGAR
2023-05-10 OIS Grant (A) +21,708 $0 EDGAR
2022-05-11 OIS Grant (A) +19,470 $0 EDGAR
2021-05-12 OIS Grant (A) +19,470 $0 EDGAR
2020-05-12 OIS Grant (A) +11,211 $0 EDGAR
2019-05-08 OIS Grant (A) +6,710 $0 EDGAR
Showing 1–10 of 16
Page 1 of 2
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.