David A. Dunbar

CIK 1595316 · President/CEO/Chairman · last filed 2026-03-18

"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

$32.19M

Companies

2

Total Filings

70

Lifetime Open-Market Net

-$22.64M

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
WTS Director 9,800 $333.11 $3.26M $0 12 2026-03-18
SXI President/CEO/Chairman 95,402 $303.16 $28.92M -$22.64M 58 2026-02-18

Recent Filings · Page 4 of 7

70 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2021-11-01 SXI Sell (S) −2,250 -$247.5K EDGAR
2021-09-08 SXI Mixed +1,724 -$763.5K EDGAR
2021-08-25 SXI Grant (A) +9,522 $0 EDGAR
2021-08-02 WTS Grant (A) +794 $0 EDGAR
2021-02-22 SXI Sell (S) −2,000 -$190.0K EDGAR
2021-01-07 SXI Sell (S) −3,000 -$255.0K EDGAR
2020-11-12 SXI Sell (S) −5,000 -$390.0K EDGAR
2020-09-09 SXI Mixed +18,716 -$256.5K EDGAR
2020-07-27 WTS Grant (A) +1,359 $0 EDGAR
2019-09-10 SXI Mixed +15,265 $222.1K EDGAR
Showing 3140 of 70
Page 4 of 7
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.