Insider transactions

Chong Sup Park

CIK 1216771 · Director · last filed 2018-10-22

"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
$34.38M
Companies
5
Total Filings
70
Lifetime Open-Market Net
-$9.11M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

STX price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Reported Address
22071 DORSEY WAY
SARATOGA, CA 95070
Related Filers
COMPUTER SCIENCES CORP — 9 joint filings, latest 2014-08-15
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
STX Director 49,336 $696.89 $34.38M -$8.67M 35 2018-10-22
COMPUTER SCIENCES CORP (CSC) Delisted Director 12,300 — — $0 8 2014-08-15
ENPH Director — $31.99 — $0 2 2013-05-06
Azenta, Inc. (BRKS) Delisted Director 36,645 $113.10 $4.14M $0 6 2012-12-21
SMART Modular Technologies (WWH), Inc. (SMOD) Delisted Director 12,712 — — -$443.3K 19 2010-06-21

Recent Filings · Page 2 of 7

70 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
2014-08-25 STX Mixed −3,000 -$236.6K EDGAR
2014-08-15 COMPUTER SCIENCES CORP (CSC) Delisted Exer (M) +12,300 $0 EDGAR
2014-02-03 STX Sell (S) −2,270 -$121.5K EDGAR
2013-11-05 STX Sell (S) −3,000 -$147.5K EDGAR
2013-10-31 STX Grant (A) +5,952 $0 EDGAR
2013-10-28 STX Tax (F) −2,965 -$144.0K EDGAR
2013-08-20 COMPUTER SCIENCES CORP (CSC) Delisted Grant (A) — $0 EDGAR
2013-05-06 ENPH Grant (A) — $0 EDGAR
2013-05-06 STX Mixed −5,000 -$439.2K EDGAR
2013-01-24 STX Mixed — -$381.0K EDGAR
Showing 11–20 of 70
Page 2 of 7
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.