Home

William Charles Taylor

CIK 1472973 · President and COO · last filed 2018-02-28

William Charles Taylor is a President and COO who has filed 39 SEC Form 4 insider transactions across 1 company since 2013. The most recent filing shows the insider exercised options covering $33.0K of MDXG on Feb 28, 2018. Across all open-market trades the lifetime net is −$8.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.8M 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.

Loading insider history…
Disclosed Exposure

$2.81M

Companies

1

Total Filings

39

Lifetime Open-Market Net

-$7.98M

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
MDXG President and COO 659,253 $4.26 $2.81M -$7.98M 28 2018-02-28

Recent Filings

39 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
2018-02-28 MDXG Exer (M) +20,000 $33.0K EDGAR
2018-02-26 MDXG Mixed +59,633 $537.2K EDGAR
2017-11-02 MDXG Grant (A) +10,000 $0 EDGAR
2017-06-16 MDXG Mixed −66,188 -$1.06M EDGAR
2017-05-30 MDXG Sell (S) −26,571 -$365.0K EDGAR
2017-05-12 MDXG Exer (M) +19,723 $100.0K EDGAR
2017-04-28 MDXG Sell (S) −26,000 -$296.5K EDGAR
2017-03-08 MDXG Sell (S) −26,000 -$212.8K EDGAR
2017-02-28 MDXG Tax (F) −11,929 $0 EDGAR
2017-02-24 MDXG Mixed +140,019 $0 EDGAR
Showing 1–10 of 39
Page 1 of 4
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.