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Dennis M Durkin

CIK 1543789 · Chief Financial Officer · last filed 2026-06-24

Dennis M Durkin is a Chief Financial Officer who has filed 21 SEC Form 4 insider transactions across 4 companies since 2012. The most recent filing, for ONON, was dated Jun 24, 2026. Across all open-market trades the lifetime net is −$31.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.7M 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

$4.66M

Companies

4

Total Filings

21

Lifetime Open-Market Net

-$31.05M

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
ONON Director 101,586 $37.89 $3.85M $0 2 2026-06-24
RBLX Director 16,409 $49.50 $812.2K $0 2 2026-05-29
SMARTSHEET INC (SMAR) Delisted Director — $56.47 — $0 1 2022-08-05
Activision Blizzard, Inc. (ATVI) Delisted Chief Financial Officer 318,246 $94.42 $30.05M -$31.05M 16 2021-04-01

Recent Filings

21 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
2026-06-24 ONON Grant (A) +2,064 $0 EDGAR
2026-05-29 RBLX Grant (A) +5,185 $0 EDGAR
2026-03-26 ONON Grant (A) +2,008 $0 EDGAR
2026-03-23 RBLX Grant (A) +3,524 $0 EDGAR
2022-08-05 SMARTSHEET INC (SMAR) Delisted Grant (A) — $0 EDGAR
2021-04-01 Activision Blizzard, Inc. (ATVI) Delisted Tax (F) −86,598 -$8.02M EDGAR
2020-08-31 Activision Blizzard, Inc. (ATVI) Delisted Mixed — -$3.59M EDGAR
2020-04-01 Activision Blizzard, Inc. (ATVI) Delisted Tax (F) −45,670 $0 EDGAR
2019-03-12 Activision Blizzard, Inc. (ATVI) Delisted Grant (A) +334,584 $0 EDGAR
2018-03-14 Activision Blizzard, Inc. (ATVI) Delisted Mixed −47,925 -$6.78M EDGAR
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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.