ATMU Insider Trading

Net Selling · 180d
Open-Market Buys (180d)
$110K
1 insiders
Open-Market Sells (180d)
$1.6M
4 insiders
Net Insider Flow
-$1.5M
open market, 180d
Reporting Insiders
5
7 P/S transactions
Build

Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 1, 2026Swan ReneeChief People OfficerSell(S)3K$45.25$116K
Jun 1, 2026Kienzler JackChief Financial OfficerSell(S)5K$45.25$232K
Jun 1, 2026Masters CharlesSenior Vice PresidentSell(S)3K$45.25$131K
Jun 1, 2026Disher StephanieChief Executive Officer, DirectorSell(S)26K$45.25$1.2M
May 12, 2026Bennett Roy EdwinDirectorGrant(A)3K$0
May 12, 2026Carpenter Kevin NSVP-Chief Supply Chain OfficerGrant(A)29K$0
May 12, 2026Donoso DiegoDirectorGrant(A)3K$0
May 12, 2026Macadam Stephen E.DirectorGrant(A)3K$0
May 12, 2026Leipold Jane ADirectorGrant(A)3K$0
May 12, 2026Haggerty Gretchen RDirectorGrant(A)3K$0
May 12, 2026Haggerty Gretchen RDirectorBuy(P)2K$55.74$104K
May 12, 2026Haggerty Gretchen RDirectorBuy(P)1$55.74$56
May 12, 2026Haggerty Gretchen RDirectorBuy(P)100$55.71$6K
May 12, 2026Taylor Stuart A IIDirectorGrant(A)3K$0
May 12, 2026Sharp HeathDirectorGrant(A)3K$0
Apr 1, 2026Masters CharlesSenior Vice PresidentGrant(A)4K$0
Apr 1, 2026Heltebran LauraCLO & Corp SecGrant(A)4K$0
Apr 1, 2026Swan ReneeChief People OfficerGrant(A)2K$0
Apr 1, 2026Kienzler JackChief Financial OfficerGrant(A)5K$0
Apr 1, 2026Disher StephanieChief Executive Officer, DirectorGrant(A)31K$0
Feb 27, 2026Disher StephanieChief Executive Officer, DirectorTax withholding(F)67K$64.53$4.3M
Feb 27, 2026Disher StephanieChief Executive Officer, DirectorTax withholding(F)16K$64.53$1.0M
Feb 27, 2026Masters CharlesSenior Vice PresidentTax withholding(F)9K$64.53$584K
Feb 27, 2026Masters CharlesSenior Vice PresidentTax withholding(F)2K$64.53$138K
Feb 27, 2026Kienzler JackChief Financial OfficerTax withholding(F)4K$64.53$249K
Feb 27, 2026Kienzler JackChief Financial OfficerTax withholding(F)16K$64.53$1.0M
Feb 27, 2026Swan ReneeChief People OfficerTax withholding(F)10K$64.53$618K
Feb 27, 2026Swan ReneeChief People OfficerTax withholding(F)2K$64.53$145K
Feb 13, 2026Disher StephanieChief Executive Officer, DirectorGrant(A)169K$0
Feb 13, 2026Masters CharlesSenior Vice PresidentGrant(A)21K$0
Feb 13, 2026Kienzler JackChief Financial OfficerGrant(A)41K$0
Feb 13, 2026Swan ReneeChief People OfficerGrant(A)19K$0
Feb 5, 2026Sharp HeathDirectorGrant(A)614$0
Nov 18, 2025Donoso DiegoDirectorOther(J)20$0
Nov 13, 2025Donoso DiegoDirectorSell(S)20$48.84$977
Oct 3, 2025Masters CharlesSenior Vice PresidentTax withholding(F)28$44.50$1K
Oct 3, 2025Kienzler JackChief Financial OfficerTax withholding(F)25$44.50$1K
Sep 5, 2025Donoso DiegoDirectorBuy(P)15$45.81$687
Aug 14, 2025Swan ReneeChief People OfficerTax withholding(F)5K$45.18$226K
Aug 13, 2025Donoso DiegoDirectorBuy(P)25$45.00$1K
May 20, 2025Taylor Stuart A IIDirectorGrant(A)4K$0
May 20, 2025Macadam Stephen E.DirectorGrant(A)4K$0
May 20, 2025Leipold Jane ADirectorGrant(A)4K$0
May 20, 2025Haggerty Gretchen RDirectorGrant(A)4K$0
May 20, 2025Donoso DiegoDirectorGrant(A)4K$0
May 20, 2025Bennett Roy EdwinDirectorGrant(A)4K$0
May 13, 2025Heltebran LauraCLO & Corp SecGrant(A)20K$0
Apr 2, 2025Donoso DiegoDirectorSell(S)40$37.79$2K
Apr 1, 2025Disher StephanieChief Executive Officer, DirectorGrant(A)40K$0
Apr 1, 2025Kienzler JackChief Financial OfficerGrant(A)7K$0
Apr 1, 2025Masters CharlesSenior Vice PresidentGrant(A)4K$0
Apr 1, 2025Swan ReneeChief People OfficerGrant(A)3K$0
Mar 3, 2025Disher StephanieChief Executive Officer, DirectorTax withholding(F)2K$39.80$98K
Mar 3, 2025Disher StephanieChief Executive Officer, DirectorTax withholding(F)3K$39.80$108K
Mar 3, 2025Kienzler JackChief Financial OfficerTax withholding(F)383$39.80$15K
Mar 3, 2025Kienzler JackChief Financial OfficerTax withholding(F)456$39.80$18K
Mar 3, 2025Masters CharlesSenior Vice PresidentTax withholding(F)736$39.80$29K
Mar 3, 2025Masters CharlesSenior Vice PresidentTax withholding(F)570$39.80$23K
Feb 17, 2025Kienzler JackChief Financial OfficerGrant(A)2K$0
Feb 17, 2025Masters CharlesSenior Vice PresidentGrant(A)2K$0
Feb 17, 2025Disher StephanieChief Executive Officer, DirectorGrant(A)11K$0
Oct 3, 2024Masters CharlesVP, Engine ProductsTax withholding(F)20$37.96$759
Oct 3, 2024Kienzler JackChief Financial OfficerGrant(A)87$0
Oct 3, 2024Kienzler JackChief Financial OfficerTax withholding(F)22$37.96$835
Aug 23, 2024Haggerty Gretchen RDirectorBuy(P)6K$34.20$200K
Aug 14, 2024Swan ReneeChief People OfficerTax withholding(F)4K$32.78$116K
Aug 7, 2024Macadam Stephen E.DirectorBuy(P)8K$31.56$260K
May 14, 2024Taylor Stuart A IIDirectorGrant(A)5K$0
May 14, 2024Donoso DiegoDirectorGrant(A)5K$0
May 14, 2024Leipold Jane ADirectorGrant(A)5K$0
May 14, 2024Haggerty Gretchen RDirectorGrant(A)5K$0
May 14, 2024Bennett Roy EdwinDirectorGrant(A)5K$0
May 14, 2024Macadam Stephen E.DirectorGrant(A)5K$0
Apr 16, 2024Kienzler JackChief Financial OfficerGrant(A)186$0
Apr 16, 2024Masters CharlesVP, Engine ProductsGrant(A)186$0
Apr 16, 2024Hickey ToniChief Legal OfficerGrant(A)186$0
Apr 1, 2024Disher StephanieChief Executive Officer, DirectorGrant(A)38K$0
Apr 1, 2024Kienzler JackChief Financial OfficerGrant(A)9K$0
Apr 1, 2024Masters CharlesVP, Engine ProductsGrant(A)5K$0
Apr 1, 2024Hickey ToniChief Legal OfficerGrant(A)4K$0
Apr 1, 2024Swan ReneeChief People OfficerGrant(A)4K$0
Mar 18, 2024Satterthwaite TonyDirectorOther(J)4K
Mar 18, 2024Cummins Inc10% OwnerOther(J)67.1M
Mar 18, 2024Taylor Stuart A IIDirectorGrant(A)627$0
Mar 18, 2024Donoso DiegoDirectorGrant(A)627$0
Mar 1, 2024Masters CharlesVP, Engine ProductsGrant(A)704$0
Mar 1, 2024Masters CharlesVP, Engine ProductsTax withholding(F)245$23.96$6K
Mar 1, 2024Masters CharlesVP, Engine ProductsTax withholding(F)1K$23.96$25K
Mar 1, 2024Hickey ToniChief Legal OfficerGrant(A)512$0
Mar 1, 2024Hickey ToniChief Legal OfficerTax withholding(F)643$23.96$15K
Mar 1, 2024Hickey ToniChief Legal OfficerTax withholding(F)152$23.96$4K
Mar 1, 2024Kienzler JackChief Financial OfficerTax withholding(F)178$23.96$4K
Mar 1, 2024Kienzler JackChief Financial OfficerTax withholding(F)753$23.96$18K
Mar 1, 2024Kienzler JackChief Financial OfficerGrant(A)512$0
Mar 1, 2024Disher StephanieChief Executive Officer, DirectorGrant(A)3K$0
Mar 1, 2024Disher StephanieChief Executive Officer, DirectorTax withholding(F)688$23.96$16K
Mar 1, 2024Disher StephanieChief Executive Officer, DirectorTax withholding(F)3K$23.96$62K
Nov 9, 2023Macadam Stephen E.DirectorBuy(P)5K$19.49$101K
Aug 14, 2023Kienzler JackChief Financial OfficerGrant(A)25K
Aug 14, 2023Hickey ToniChief Legal OfficerGrant(A)13K

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-292026-07-14. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).