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David Brent Shafer

CIK 1728374 · Interim CEO and Chair · last filed 2026-06-15

David Brent Shafer is an Interim CEO and Chair who has filed 30 SEC Form 4 insider transactions across 4 companies since 2018. The most recent filing, for VCYT, was dated Jun 15, 2026. Across all open-market trades the lifetime net is −$13.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.1M 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.

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Disclosed Exposure

$5.09M

Companies

4

Total Filings

30

Lifetime Open-Market Net

-$13.48M

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
VCYT Director 31,100 $56.68 $1.76M $0 3 2026-06-15
TCMD Director 55,343 $27.68 $1.53M $0 6 2026-05-08
BAX Interim CEO and Chair 72,804 $24.70 $1.80M $0 6 2026-05-07
CERNER Corp (CERN) Delisted Chairman and CEO 366 $94.92 $34.7K -$13.48M 15 2021-05-11

Recent Filings

30 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
2026-06-15 VCYT Grant (A) +5,272 $0 EDGAR
2026-05-08 TCMD Grant (A) +6,521 $0 EDGAR
2026-05-07 BAX Grant (A) +12,836 $0 EDGAR
2025-08-21 BAX Tax (F) −31,337 -$762.4K EDGAR
2025-06-23 VCYT Grant (A) +9,321 $0 EDGAR
2025-05-09 TCMD Grant (A) +16,078 $0 EDGAR
2025-02-06 BAX Grant (A) +76,289 $0 EDGAR
2024-09-04 VCYT Grant (A) +16,507 $0 EDGAR
2024-05-10 TCMD Grant (A) +10,469 $0 EDGAR
2024-05-09 BAX Grant (A) +5,952 $0 EDGAR
Showing 1–10 of 30
Page 1 of 3
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.