JEFFREY W DUNN

CIK 1035986 · Chairman, President & CEO · last filed 2026-06-08

"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

$1.56M

Companies

1

Total Filings

83

Lifetime Open-Market Net

-$28.88M

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
SIBN Director 101,187 $15.42 $1.56M -$28.88M 83 2026-06-08

Recent Filings · Page 6 of 9

83 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2021-06-21 SIBN Mixed -$88.9K EDGAR
2021-06-10 SIBN Mixed -$1.20M EDGAR
2021-05-19 SIBN Sell (S) −8,401 -$263.8K EDGAR
2021-05-07 SIBN Mixed −24,900 -$1.24M EDGAR
2021-04-20 SIBN Sell (S) −2,112 -$71.1K EDGAR
2021-04-07 SIBN Sell (S) −40,000 -$1.22M EDGAR
2021-03-08 SIBN Sell (S) −40,000 -$1.15M EDGAR
2021-02-18 SIBN Sell (S) −3,507 -$108.9K EDGAR
2021-02-09 SIBN Sell (S) −40,000 -$1.30M EDGAR
2021-01-21 SIBN Sell (S) −3,268 -$94.8K EDGAR
Showing 5160 of 83
Page 6 of 9
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.