Home

DAVID R ZIMMER

CIK 1227478 · last filed 2023-08-25

DAVID R ZIMMER is a corporate insider who has filed 39 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for STRT, was dated Nov 25, 2024. Across all open-market trades the lifetime net is −$632.3K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.3M 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.

Loading insider history…
Disclosed Exposure

$2.29M

Companies

2

Total Filings

39

Lifetime Open-Market Net

-$632.3K

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
STRT Director 15,150 $80.55 $1.22M $14.6K 15 2023-08-25
TWIN Director 47,629 $22.37 $1.07M -$647.0K 22 2019-11-01

Recent Filings

39 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
2024-11-25 STRT Notice (144) −5,000 -$210.3K EDGAR
2024-11-20 STRT Notice (144) −1,050 -$42.5K EDGAR
2023-08-25 STRT Grant (A) +2,100 $0 EDGAR
2022-08-24 STRT Grant (A) +1,650 $0 EDGAR
2021-08-19 STRT Grant (A) +1,050 $0 EDGAR
2020-10-07 STRT Grant (A) +2,100 $0 EDGAR
2019-11-01 TWIN Grant (A) +6,737 $0 EDGAR
2019-08-22 STRT Grant (A) +2,100 $0 EDGAR
2018-10-26 TWIN Grant (A) +3,264 $0 EDGAR
2018-08-22 STRT Grant (A) +1,050 $0 EDGAR
Showing 1–10 of 39
Page 1 of 4
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.