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A LANCE LANGFORD

CIK 1238742 · Executive V.P. Operations · last filed 2026-03-06

A LANCE LANGFORD is an Executive V.P. Operations who has filed 33 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for AESI, was dated Mar 6, 2026. Across all open-market trades the lifetime net is −$3.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $9.4M 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

$9.37M

Companies

3

Total Filings

33

Lifetime Open-Market Net

-$3.02M

Filer Profile

Reported Address
6300 BRIDGE POINT PARKWAY
BLDG 2 SUITE 500
AUSTIN, TX 78730
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
AESI Director 695,816 $13.46 $9.37M $0 5 2026-03-06
Brigham Minerals, Inc. (MNRL) Delisted Director 21,988 $32.50 $714.6K $0 3 2022-05-26
BRIGHAM EXPLORATION CO (BEXP) Delisted Executive V.P. Operations 0 — — -$3.02M 24 2011-12-12

Recent Filings

33 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
2026-03-06 AESI Grant (A) +24,218 $0 EDGAR
2025-03-17 AESI Grant (A) +13,675 $0 EDGAR
2024-03-15 AESI Grant (A) +11,364 $240.0K EDGAR
2023-09-15 AESI Other (J) +1,230,649 $0 EDGAR
2023-03-15 AESI Grant (A) +8,056 $0 EDGAR
2023-01-03 — Disp (D) −21,988 $0
2022-05-26 Brigham Minerals, Inc. (MNRL) Delisted Grant (A) +5,232 $0 EDGAR
2021-05-28 Brigham Minerals, Inc. (MNRL) Delisted Grant (A) +7,692 $0 EDGAR
2020-12-16 Brigham Minerals, Inc. (MNRL) Delisted Grant (A) +9,064 $0 EDGAR
2011-12-12 BRIGHAM EXPLORATION CO (BEXP) Delisted Disp (D) — $0 EDGAR
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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.