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Allison Transmission Holdings Inc (ALSN)

Allison Transmission Holdings Inc (ALSN) Insider Trading

Directors, officers and holders of more than 10% of ALSN report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 562 transactions on file: 0 with code P, 7 with code S and 43 with other codes.

DateInsiderCodeShares
Aug 31, 2026Perna GustaveA Award3
Aug 31, 2026Altmaier Judy LA Award50
Aug 31, 2026HAZNEDAR CAROLANN IA Award52
Aug 31, 2026Scroggins Eric C.A Award11
Aug 31, 2026Ostojic SashaA Award3
Aug 31, 2026Shivram KrishnaA Award3
Aug 31, 2026Mell Scott AA Award28
Aug 31, 2026EVERITT DAVID CA Award64
Aug 31, 2026Graziosi David S.A Award131
Aug 31, 2026BARBOUR D. SCOTTA Award3
Aug 31, 2026Bohley G FrederickA Award35
Aug 31, 2026Christman Philip JA Award3
Aug 31, 2026Price Michael CraigA Award38
Aug 21, 2026Graziosi David S.S Sale4,558
Aug 21, 2026Graziosi David S.S Sale13,100
Aug 21, 2026Graziosi David S.S Sale9,050
Aug 21, 2026Graziosi David S.M Exercise26,708
Aug 21, 2026Graziosi David S.M Exercise26,708
Aug 11, 2026Scroggins Eric C.S Sale1,050
Aug 10, 2026Bohley G FrederickM Exercise3,961
Aug 10, 2026Bohley G FrederickM Exercise3,961
Aug 10, 2026Bohley G FrederickS Sale3,961
Jun 4, 2026Bohley G FrederickF Tax Payment242
Jun 4, 2026Bohley G FrederickM Exercise533
Jun 4, 2026Bohley G FrederickM Exercise10
Jun 4, 2026Bohley G FrederickM Exercise10
Jun 4, 2026Bohley G FrederickM Exercise533
May 29, 2026Altmaier Judy LA Award57
May 29, 2026Mell Scott AA Award31
May 29, 2026BARBOUR D. SCOTTA Award3
May 29, 2026Price Michael CraigA Award42
May 29, 2026Scroggins Eric C.A Award13
May 29, 2026HAZNEDAR CAROLANN IA Award59
May 29, 2026Graziosi David S.A Award144
May 29, 2026Bohley G FrederickA Award39
May 29, 2026Christman Philip JA Award3
May 29, 2026EVERITT DAVID CA Award73
May 29, 2026Ostojic SashaA Award3
May 29, 2026Shivram KrishnaA Award3
May 29, 2026Perna GustaveA Award3
May 8, 2026Mell Scott AS Sale933
May 8, 2026Mell Scott AM Exercise1,337
May 8, 2026Mell Scott AM Exercise1,337
May 8, 2026Mell Scott AS Sale1,337
May 7, 2026Perna GustaveA Award1,503
May 7, 2026Ostojic SashaA Award1,503
May 7, 2026BARBOUR D. SCOTTA Award1,503
May 7, 2026EVERITT DAVID CA Award1,503
May 7, 2026HAZNEDAR CAROLANN IA Award1,503
May 7, 2026Christman Philip JA Award1,503

The full Form 4 history is on the ALSN company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.