CHARLES W HULL

CIK 1105964 · EVP & Chief Technology Officer · last filed 2026-04-16

"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

$21.25M

Companies

2

Total Filings

109

Lifetime Open-Market Net

-$27.58M

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
DDD EVP & Chief Technology Officer 518,520 $3.56 $1.85M -$24.27M 90 2026-04-16
TDSC EVP, Chief Technology Officer 691,010 $28.08 $19.40M -$3.31M 18 2011-05-19

Recent Filings · Page 3 of 11

109 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
2022-06-10 DDD Sell (S) −26,386 -$288.8K EDGAR
2022-03-17 DDD Grant (A) +18,137 $0 EDGAR
2022-03-09 DDD Sell (S) −29,615 -$437.7K EDGAR
2022-03-07 DDD Mixed +13,226 -$162.7K EDGAR
2022-02-17 DDD Tax (F) −5,655 -$109.6K EDGAR
2022-01-14 DDD Tax (F) −8,418 -$169.9K EDGAR
2021-12-15 DDD Tax (F) −1,651 -$35.2K EDGAR
2021-03-02 DDD Tax (F) −1,085 -$42.1K EDGAR
2021-02-17 DDD Tax (F) −5,132 -$245.6K EDGAR
2021-01-14 DDD Grant (A) +15,381 $0 EDGAR
Showing 2130 of 109
Page 3 of 11
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.