Bryan T Vaughn

CIK 2103999 · EVP and President, Diagnostics · last filed 2026-07-06

Bryan T Vaughn is an EVP and President, Diagnostics who has filed 6 SEC Form 4 insider transactions across 1 company since 2026. The most recent filing, for LH, was dated Jul 6, 2026. Across all open-market trades the lifetime net is −$67.0K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.3M 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.

Disclosed Exposure

$2.29M

Companies

1

Total Filings

6

Lifetime Open-Market Net

-$67.0K

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
LH	EVP and President, Diagnostics	6,979	$327.61	$2.29M	-$67.0K	5	2026-07-06

Recent Filings

6 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
2026-07-06	LH	Mixed	—	-$93.4K	EDGAR
2026-07-02	LH	Notice (144)	−234	-$67.0K	EDGAR
2026-03-30	LH	Mixed	+1,133	-$121.0K	EDGAR
2026-02-13	LH	Mixed	+230	-$27.0K	EDGAR
2026-02-12	LH	Grant (A)	—	$0	EDGAR
2026-02-10	LH	Mixed	+236	-$33.6K	EDGAR

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.