Home

LAWRENCE C BEST

CIK 1191248 · EVP · last filed 2019-12-06

LAWRENCE C BEST is an EVP who has filed 36 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for MYGN, was dated Dec 6, 2019. Across all open-market trades the lifetime net is −$20.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $14.3M 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

$14.26M

Companies

4

Total Filings

36

Lifetime Open-Market Net

-$20.14M

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
MYGN Director 60,790 $3.23 $196.4K -$1.94M 13 2019-12-06
HAE Director 10,001 $102.85 $1.03M -$8.47M 12 2013-07-26
BIIB Director 5,600 $224.51 $1.26M $0 3 2008-06-23
BSX EVP 250,869 $46.95 $11.78M -$9.73M 8 2007-07-17

Recent Filings

36 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
2019-12-06 MYGN Grant (A) +11,687 $0 EDGAR
2018-11-30 MYGN Grant (A) +9,360 $0 EDGAR
2017-11-30 MYGN Grant (A) +7,219 $0 EDGAR
2016-12-01 MYGN Grant (A) +15,024 $0 EDGAR
2015-12-07 MYGN Grant (A) +7,500 $0 EDGAR
2014-12-04 MYGN Grant (A) +10,000 $0 EDGAR
2013-12-06 MYGN Grant (A) — $0 EDGAR
2013-07-26 HAE Grant (A) +1,649 $0 EDGAR
2013-05-07 HAE Mixed — -$143.3K EDGAR
2012-12-05 MYGN Grant (A) — $0 EDGAR
Showing 1–10 of 36
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.