Derrell Porter

CIK 1706400 · SVP, Head of Global Commercial · last filed 2026-06-17

"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

$90.8K

Companies

3

Total Filings

22

Lifetime Open-Market Net

-$1.11M

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
ABOS Director 35,500 $2.28 $80.9K -$75.2K 6 2026-06-17
PASG Director $4.57 $0 6 2026-05-21
ATRA SVP, Head of Global Commercial 1,268 $7.81 $9.9K -$1.03M 7 2019-03-27

Recent Filings · Page 2 of 3

22 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
2023-06-07 ABOS Grant (A) $0 EDGAR
2023-05-26 PASG Grant (A) $0 EDGAR
2023-01-04 ABOS Grant (A) $0 EDGAR
2022-05-31 PASG Grant (A) $0 EDGAR
2021-05-28 PASG Grant (A) $0 EDGAR
2019-03-27 ATRA Grant (A) +10,000 $0 EDGAR
2019-02-19 ATRA Mixed −1,909 -$179.2K EDGAR
2019-02-08 ATRA Mixed −13,529 -$46.8K EDGAR
2018-05-16 ATRA Mixed -$501.8K EDGAR
2018-05-08 ATRA Sell (S) −1,544 -$62.0K EDGAR
Showing 1120 of 22
Page 2 of 3
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.