SEC Form 4
ALLISON TRANSMISSION HOLDINGS, INC. (ALSN) insider trading
In the 12 months to Oct 24, 2026, 5 ALSN insiders reported open-market sales of $6.0M across 7 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $6.0M
- 7 filings · 5 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 2 of 7
- $1.4M of $6.0M sold (23%)
Who traded ALSN, and when
- Sale
- Sale, pre-arranged (10b5-1)
ALSN daily close from Oct 24, 2025 to Oct 23, 2026, between $79.27 and $136.00, last $106.32. 7 sale and 0 purchase filings by 5 insiders, marked at their filing dates. David S. Graziosi, Chair, President and CEO: sold $3.6M across 1 filing, first filed Aug 25, 2026, last Aug 25, 2026. G. Frederick Bohley, Allison COO,Pres.&BU Leader AT → Officer (see filing): sold $1.7M across 2 filings, first filed Feb 17, 2026, last Aug 11, 2026. Scott A. Mell, CFO & Treasurer: sold $283.8K across 1 filing, first filed May 11, 2026, last May 11, 2026. Eric C. Scroggins, CLO & Asst. Secretary: sold $281.5K across 2 filings, first filed Mar 10, 2026, last Aug 13, 2026. John Coll, SVP, Global MSS: sold $176.9K across 1 filing, first filed Jan 2, 2026, last Jan 2, 2026.
Largest mark · tap a row for others
David S. Graziosi · Chair, President and CEO
Sale $3,551,470
26,708 shares at $132.97 avg
Filed Aug 25, 2026 · traded Aug 21
Close on filing date $131.62
David S. Graziosi · Chair, President and CEO
Chair, President and CEO
$3.6M soldG. Frederick Bohley · Allison COO,Pres.&BU Leader AT → Officer (see filing)
Allison COO,Pres.&BU Leader AT → Officer (see filing)
$1.7M soldScott A. Mell · CFO & Treasurer
CFO & Treasurer
$283.8K soldEric C. Scroggins · CLO & Asst. Secretary
CLO & Asst. Secretary
$281.5K soldJohn Coll · SVP, Global MSS
SVP, Global MSS
$176.9K soldHas ALLISON TRANSMISSION HOLDINGS, INC.'s CEO sold stock?
Yes. David S. Graziosi (CEO) sold 26,708 shares ($3.6M) in Aug 2026.
Open-market trades
7 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| David S. Graziosi | Chair, President and CEO | $3.6M | — | 1 | — | |
| G. Frederick Bohley | Allison COO,Pres.&BU Leader AT → Officer (see filing) | $1.7M | — | 2 | 71% of sales | |
| Scott A. Mell | CFO & Treasurer | $283.8K | — | 1 | — | |
| Eric C. Scroggins | CLO & Asst. Secretary | $281.5K | — | 2 | — | |
| John Coll | SVP, Global MSS | $176.9K | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | David S. Graziosi Chair, President and CEO | Sale | 26,708 | $132.97 | $3.6M | 309,401 | |
traded | Eric C. Scroggins CLO & Asst. Secretary | Sale | 1,050 | $125.00 | $131.3K | 16,604 | |
traded | G. Frederick Bohley Officer (see filing) | Sale | 3,961 | $122.38 | $484.7K | 112,886 | |
traded | Scott A. Mell CFO & Treasurer | Sale | 2,270 | $125.00 | $283.8K | 1,053 | |
traded | Eric C. Scroggins CLO & Asst. Secretary | Sale | 1,313 | $114.40 | $150.2K | 17,654 | |
traded | G. Frederick Bohley Allison COO,Pres.&BU Leader AT | SalePre-arranged (10b5-1) | 10,348 | $116.40 | $1.2M | 99,074 | |
traded | John Coll SVP, Global MSS | SalePre-arranged (10b5-1) | 1,791 | $98.79 | $176.9K | 10,021 |
GET /stocks/filings/vX/form-4?tickers=ALSN&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"ALSN"
],
"issuer_cik": "0001411207",
"owner_cik": "0001543492",
"accession_number": "0001193125-26-365668",
"form_type": "4",
"filing_date": "2026-08-25",
"period_of_report": "2026-08-21",
"issuer_name": "Allison Transmission Holdings Inc",
"issuer_trading_symbol": "ALSN",
"owner_name": "Graziosi David S.",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chair, President and CEO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-21",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 4558,
"transaction_price_per_share": 134.0479,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 304843,
"transaction_value": 610990.3282,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F3",
"description": "The price reported is a weighted average price. The shares were sold in multiple transactions at per share prices ranging from $134.000000 to $134.120000. The reporting person undertakes to provide ALSN or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."
}
]
},
{
"tickers": [
"ALSN"
],
"issuer_cik": "0001411207",
"owner_cik": "0001543492",
"accession_number": "0001193125-26-365668",
"form_type": "4",
"filing_date": "2026-08-25",
"period_of_report": "2026-08-21",
"issuer_name": "Allison Transmission Holdings Inc",
"issuer_trading_symbol": "ALSN",
"owner_name": "Graziosi David S.",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chair, President and CEO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-21",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 13100,
"transaction_price_per_share": 132.4362,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 318451,
"transaction_value": 1734914.2200000002,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported is a weighted average price. The shares were sold in multiple transactions at per share prices ranging from $132.000000 to $132.990000. The reporting person undertakes to provide Allison Transmission Holdings, Inc. (\"ALSN\") or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 53 records
- Option exercises28 records
- Tax withholding13 records
- Grants and awards12 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for ALSN every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.