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DAVID C CHANG

CIK 1188184 · VP Global Sales & Marketing · last filed 2026-06-17

DAVID C CHANG is a VP Global Sales & Marketing who has filed 66 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing shows the insider sold $926.4K of AXTI on Jun 17, 2026. Across all open-market trades the lifetime net is −$5.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $11.1M across reported positions. 28 SEC filings were submitted jointly with SPECTRUM MANAGEMENT HOLDING COMPANY, LLC.

"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

$11.12M

Companies

2

Total Filings

66

Lifetime Open-Market Net

-$5.81M

Filer Profile

Reported Address
C/O TIME WARNER CABLE INC.
60 COLUMBUS CIRCLE, 16TH FLOOR
NEW YORK, NY 10023
Related Filers
SPECTRUM MANAGEMENT HOLDING COMPANY, LLC — 28 joint filings, latest 2016-05-20
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
AXTI Director 197,909 $56.20 $11.12M -$5.81M 35 2026-06-17
TIME WARNER CABLE INC. (TWC) Delisted Director 4,678 — — $0 26 2016-02-11

Recent Filings

66 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
2026-06-17 AXTI Sell (S) −8,333 -$926.4K EDGAR
2026-06-08 AXTI Notice (144) −8,333 -$797.1K EDGAR
2026-06-05 AXTI Grant (A) +754 $0 EDGAR
2026-03-12 AXTI Sell (S) −20,000 -$919.9K EDGAR
2026-03-05 AXTI Sell (S) −40,000 -$1.54M EDGAR
2026-03-03 AXTI Notice (144) −60,000 -$2.78M EDGAR
2025-12-10 AXTI Sell (S) −25,000 -$371.0K EDGAR
2025-12-02 AXTI Sell (S) −50,000 -$576.2K EDGAR
2025-11-25 AXTI Notice (144) −100,000 -$934.0K EDGAR
2025-11-06 AXTI Sell (S) −100,000 -$894.0K EDGAR
Showing 1–10 of 66
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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.