David Brent Shafer
CIK 1728374 · Interim CEO and Chair · last filed 2026-06-15
"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
$5.06M
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 | $56.19 | $1.75M | $0 | 3 | 2026-06-15 |
| TCMD | Director | 55,343 | $27.44 | $1.52M | $0 | 6 | 2026-05-08 |
| BAX | Interim CEO and Chair | 72,804 | $24.61 | $1.79M | $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 · Page 2 of 3
30 filingsInsider 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 |
|---|---|---|---|---|---|
| 2023-05-10 | TCMD | Grant (A) | +7,737 | $0 | EDGAR |
| 2023-05-04 | BAX | Grant (A) | +4,573 | $0 | EDGAR |
| 2022-05-12 | BAX | Grant (A) | +2,481 | $0 | EDGAR |
| 2022-05-11 | TCMD | Grant (A) | +12,103 | $0 | EDGAR |
| 2022-02-28 | TCMD | Grant (A) | +2,435 | $0 | EDGAR |
| 2021-05-11 | CERNER Corp (CERN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-05-07 | CERNER Corp (CERN) Delisted | Mixed | −36,526 | -$3.58M | EDGAR |
| 2021-05-03 | CERNER Corp (CERN) Delisted | Mixed | +24,500 | -$1.49M | EDGAR |
| 2021-03-29 | CERNER Corp (CERN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-03-02 | CERNER Corp (CERN) Delisted | Mixed | +12,026 | -$569.6K | 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.
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.