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Chansoo Joung

CIK 1355799 · Director · last filed 2026-07-01

Chansoo Joung is a Director who has filed 149 SEC Form 4 insider transactions across 4 companies since 2008. The most recent filing, for APA, was dated Jul 1, 2026. Across all open-market trades the lifetime net is −$371.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.09B 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

$4.09B

Companies

4

Total Filings

149

Lifetime Open-Market Net

-$371.60M

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
APA Director 244,742 $41.19 $10.08M $4.49M 108 2026-07-01
Magellan Midstream Partners, L.P. (MMP) Delisted Director 45,863 $69.00 $3.16M $1.61M 33 2023-08-16
TRGP Director 13,889,431 $294.03 $4.08B -$377.69M 1 2010-12-14
Targa Resources Partners LP (NGLS) Delisted Director 8,831,837 — — $0 6 2010-08-27

Recent Filings

149 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
2026-07-01 APA Grant (A) +1,535 $0 EDGAR
2026-04-02 APA Grant (A) +1,178 $0 EDGAR
2026-01-05 APA Mixed — $0 EDGAR
2025-10-01 APA Mixed — $0 EDGAR
2025-08-25 APA Other (J) — $0 EDGAR
2025-07-01 APA Mixed — $0 EDGAR
2025-05-27 APA Other (J) — $0 EDGAR
2025-04-03 APA Buy (P) +75,000 $1.37M EDGAR
2025-04-01 APA Mixed — $0 EDGAR
2025-02-24 APA Other (J) — $0 EDGAR
Showing 1–10 of 149
Page 1 of 15
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.