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Steven Alan Sonnenberg

CIK 1335987 · last filed 2026-06-11

Steven Alan Sonnenberg is a corporate insider who has filed 63 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing shows the insider had shares withheld for taxes covering $21.5K of ST on Jun 11, 2026. Across all open-market trades the lifetime net is −$2.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.7M 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

$8.66M

Companies

3

Total Filings

63

Lifetime Open-Market Net

-$2.38M

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
ST Director 24,572 $46.15 $1.13M $0 8 2026-06-11
STLD Director 22,561 $263.18 $5.94M $0 29 2024-04-15
TNC Director 22,994 $69.25 $1.59M -$2.38M 23 2024-02-29

Recent Filings

63 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
2026-06-11 ST Tax (F) −433 -$21.5K EDGAR
2025-06-12 ST Mixed +6,029 -$4.2K EDGAR
2024-06-13 ST Mixed +4,409 -$2.1K EDGAR
2024-05-23 TNC Notice (144) −14,904 -$1.52M EDGAR
2024-04-15 STLD Grant (A) +56 $0 EDGAR
2024-02-29 TNC Mixed — -$413.6K EDGAR
2024-02-27 TNC Notice (144) −8,910 -$980.9K EDGAR
2024-01-17 STLD Grant (A) +66 $0 EDGAR
2023-10-17 STLD Grant (A) +69 $0 EDGAR
2023-08-31 TNC Mixed — -$33.6K EDGAR
Showing 1–10 of 63
Page 1 of 7
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.