JOHN M HEYNEMAN JR

CIK 1198518 · last filed 2026-06-03

JOHN M HEYNEMAN JR is a corporate insider who has filed 29 SEC Form 4 insider transactions across 1 company since 2011. The most recent filing, for FIBK, was dated Jun 3, 2026. Across all open-market trades the lifetime net is −$1.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.4M across reported positions. 16 SEC filings were submitted jointly with John M Heyneman Jr. Trust.

"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

$1.42M

Companies

1

Total Filings

29

Lifetime Open-Market Net

-$1.77M

Filer Profile

Reported Address

C/O FIRST INTERSTATE BANCSYSTEM INC
P O BOX 30918
BILLINGS, MT 59116

Related Filers

John M Heyneman Jr. Trust — 16 joint filings, latest 2025-11-25

Rae Ann Morss & John Heyneman Jr., Trustees FBO Rae Ann Morss Exemption Trust Under the Scott Family 1996 Trust — 16 joint filings, latest 2025-11-25

Riki Rae Scott Davidson & John Heyneman Jr., Trustees FBO Riki Scott Davidson Exemption Trust Under the Scott Family 1996 Trust — 16 joint filings, latest 2025-11-25

Towanda Investments Limited Partnership — 16 joint filings, latest 2025-11-25

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
FIBK	Director	37,625	$37.85	$1.42M	-$1.77M	23	2026-06-03

Recent Filings

29 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
2026-06-03	FIBK	Grant (A)	+2,247	$0	EDGAR
2026-02-03	FIBK	Notice (144)	−615	-$23.1K	EDGAR
2025-11-14	FIBK	—	—	$0	EDGAR
2025-11-12	FIBK	Notice (144)	−15,000	-$482.2K	EDGAR
2025-11-12	FIBK	Mixed	+108,068	-$1.12M	EDGAR
2025-11-10	FIBK	Notice (144)	−20,000	-$641.3K	EDGAR
2025-08-14	FIBK	Notice (144)	−11,818	-$356.7K	EDGAR
2025-06-03	FIBK	Grant (A)	+14,730	$0	EDGAR
2025-02-26	FIBK	Notice (144)	−250	-$7.6K	EDGAR
2025-02-14	FIBK	Notice (144)	−1,335	-$43.5K	EDGAR

Showing 1–10 of 29

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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.