Home

DENIS R BURGER

CIK 1239414 · Executive Chairman · last filed 2026-07-01

DENIS R BURGER is an Executive Chairman who has filed 26 SEC Form 4 insider transactions across 2 companies since 2007. Across all open-market trades the lifetime net is +$14.5K, making them a net buyer over the disclosed history.

"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

$0

Companies

2

Total Filings

26

Lifetime Open-Market Net

$14.5K

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
Aptose Biosciences Inc. (APTO) Delisted Director 48 $1.71 $82 $14.5K 12 2024-02-07
Sarepta Therapeutics, Inc. (AVII) Delisted Chief Executive Officer — — — $0 1 2007-04-05

Recent Filings

26 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
2026-07-01 — Disp (D) −70 -$120
2024-02-07 Aptose Biosciences Inc. (APTO) Delisted Grant (A) — $0 EDGAR
2023-01-23 Aptose Biosciences Inc. (APTO) Delisted Grant (A) — $0 EDGAR
2022-01-20 Aptose Biosciences Inc. (APTO) Delisted Grant (A) — $0 EDGAR
2021-12-28 Aptose Biosciences Inc. (APTO) Delisted — — $0 EDGAR
2021-12-21 Aptose Biosciences Inc. (APTO) Delisted Buy (P) +10,000 $14.5K EDGAR
2021-11-23 Aptose Biosciences Inc. (APTO) Delisted Exer (M) +5,417 $11.1K EDGAR
2021-11-19 Aptose Biosciences Inc. (APTO) Delisted Mixed +5,417 $11.1K EDGAR
2021-01-06 Aptose Biosciences Inc. (APTO) Delisted Grant (A) — $0 EDGAR
2020-03-13 Aptose Biosciences Inc. (APTO) Delisted Grant (A) — $0 EDGAR
Showing 1–10 of 26
Page 1 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.