William C Britts

CIK 1198540 · SVP, Worldwide Sales & Mktg. · last filed 2018-02-07

"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

Companies

Total Filings

Lifetime Open-Market Net

-$1.62M

Charts

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

QTM 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.

Holdings By Company

Latest on-record share count in each company: direct shares plus every indirect holder (trusts, LLCs, partnerships, family members) on the latest Form 4 that lists them. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
QUANTUM CORP /DE/ (QTM) Delisted	SVP, Worldwide Sales & Mktg.	206,646	—	—	-$1.62M	48	2018-02-07

Recent Filings · Page 2 of 5

48 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, so not all of them end in a sale. Under each notice: the role the filer ticked on it, and whether a sale followed (a Form 4 sale within 30 days, or a sale listed on a later notice).

Filed	Symbol	Action	Net Shares	Net $	Link
2015-07-02	QUANTUM CORP /DE/ (QTM) Delisted	Mixed	+124,583	-$146.0K	EDGAR
2015-02-06	QUANTUM CORP /DE/ (QTM) Delisted	Other (J)	+5,000	$5.3K	EDGAR
2014-08-06	QUANTUM CORP /DE/ (QTM) Delisted	Other (J)	+5,000	$5.1K	EDGAR
2014-07-03	QUANTUM CORP /DE/ (QTM) Delisted	Mixed	+206,695	-$54.1K	EDGAR
2014-02-07	QUANTUM CORP /DE/ (QTM) Delisted	Other (J)	+5,000	$5.0K	EDGAR
2013-08-06	QUANTUM CORP /DE/ (QTM) Delisted	Other (J)	+5,000	$5.7K	EDGAR
2013-07-02	QUANTUM CORP /DE/ (QTM) Delisted	Mixed	+189,615	-$49.2K	EDGAR
2013-02-06	QUANTUM CORP /DE/ (QTM) Delisted	Other (J)	+5,000	$5.7K	EDGAR
2012-08-06	QUANTUM CORP /DE/ (QTM) Delisted	Other (J)	+5,000	$6.0K	EDGAR
2012-07-03	QUANTUM CORP /DE/ (QTM) Delisted	Mixed	+128,839	-$43.0K	EDGAR

Showing 11–20 of 48

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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, and an amended or cancelled notice is not listed. 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. Someone who is no longer an officer or director (or never was) files no Form 4, so for them a sale shows up only on a later notice, which lists the seller's sales from the 3 months before it. "No sale on file" means neither record shows one; a dash in Net $ means the value filed on the notice doesn't fit the stock's price (likely a typo).