Home

David A. Daberko

CIK 1181653 · Chairman and CEO · last filed 2021-11-02

David A. Daberko is a Chairman and CEO who has filed 125 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing shows the insider had shares withheld for taxes covering $34.5K of RPM on Nov 2, 2021. Across all open-market trades the lifetime net is −$280.0K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $51.2M 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

$51.21M

Companies

7

Total Filings

125

Lifetime Open-Market Net

-$280.0K

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
RPM Director 20,812 $105.08 $2.19M -$797.9K 28 2021-11-02
MPC Director 152,463 $312.60 $47.66M $0 28 2018-04-04
MPLX Director 23,872 $57.06 $1.36M $220.0K 43 2018-04-04
WILLIAMS PARTNERS L.P. (ACMP) Delisted Director 18,911 — — $199.2K 4 2014-07-03
WILLIAMS PARTNERS L.P. (CHKM) Delisted Director 8,383 — — $98.7K 3 2012-01-05
MARATHON OIL CORP (MRO) Delisted Director 4,000 $28.55 $114.2K $0 7 2011-07-01
OMNOVA SOLUTIONS INC (OMN) Delisted Director — — — $0 1 2007-05-15

Recent Filings

125 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
2021-11-02 RPM Tax (F) −396 -$34.5K EDGAR
2021-10-08 RPM Grant (A) +1,800 $0 EDGAR
2020-11-03 RPM Tax (F) −473 -$40.0K EDGAR
2020-10-09 RPM Grant (A) +1,700 $0 EDGAR
2019-11-04 RPM Tax (F) −484 -$35.1K EDGAR
2019-10-22 RPM Sell (S) −12,000 -$834.1K EDGAR
2019-10-04 RPM Grant (A) +2,100 $0 EDGAR
2018-11-02 RPM Tax (F) −572 -$35.0K EDGAR
2018-10-05 RPM Grant (A) +1,800 $0 EDGAR
2018-04-04 MPC Grant (A) +129 $0 EDGAR
Showing 1–10 of 125
Page 1 of 13
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.