Allison Transmission Holdings Inc. Insider Trading

ALSN

Last 12 months

Insiders sold $5.98M and bought nothing on the open market.

23% of the selling was scheduled in advance under 10b5-1 plans. Chair, President and CEO David S. Graziosi sold $3.55M on Aug 21, 8.1% of their stake, outside a plan. The last open-market buy by an executive or director was in Aug 2025.

Net open-market

−$5.98M

0 buys · 7 sales

Under a 10b5-1 plan

23%

of the value sold

Insiders who bought / sold

0 / 5

executives and directors

Last open-market buy

Aug 2025

Aug 14, 2025

Get an email when ALSN's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 21	David S. Graziosi Chair, President and CEO	SoldNo plan 3 parts	26,708	$132.98 average	$3.55M	8.1%	Form 4
Aug 11	Eric C. Scroggins CLO & Asst. Secretary	SoldNo plan	1,050	$125.00	131K	5.9%	Form 4
Aug 10	G Frederick Bohley See Remarks	SoldNo plan	3,961	$122.38	485K	3.4%	Form 4
May 8	Scott A Mell CFO & Treasurer	SoldNo plan 2 parts	2,270	$125.00 average	284K	68%	Form 4
Mar 9	Eric C. Scroggins CLO & Asst. Secretary	SoldNo plan	1,313	$114.40	150K	6.9%	Form 4
Feb 13	G Frederick Bohley Allison COO,Pres.&BU Leader AT	Sold10b5-1 plan 3 parts	10,348	$116.40 average	$1.2M	9.4%	Form 4
Dec 31, 2025	John Coll SVP, Global MSS	Sold10b5-1 plan	1,791	$98.79	177K	8.6%	Form 4
Sep 30, 2025	John Coll SVP, Global MSS	Sold10b5-1 plan	1,788	$84.32	151K	7.9%	Form 4
Aug 14, 2025	G Frederick Bohley Chief Operating Officer	Bought	3,000	$88.50	266K	3.1%	Form 4
Jun 30, 2025	John Coll SVP, Global MSS	Sold10b5-1 plan	1,788	$94.69	169K	7.4%	Form 4
May 21, 2025	Ryan A. Milburn VP, Engr. & Tech Dev.	Sold10b5-1 plan	3,412	$105.24	359K	22%	Form 4
May 7, 2025	Eric C. Scroggins VP, Gen. Counsel & Assist. Sec	SoldNo plan	5,358	$98.05	525K	28%	Form 4
Apr 1, 2025	John Coll SVP, Global MSS	Sold10b5-1 plan	1,788	$95.33	170K	6.9%	Form 4
Mar 6, 2025	Ryan A. Milburn VP, Engr. & Tech Dev.	Sold10b5-1 plan	4,546	$96.20	437K	24%	Form 4
Feb 27, 2025	Teresa Van Niekerk VP, Chief Procurement Officer	SoldNo plan	8,191	$101.09	828K	33%	Form 4
Feb 25, 2025 – Feb 26, 2025	Ryan A. Milburn VP, Engr. & Tech Dev.	Sold10b5-1 plan 2 parts	1,455	$99.34 average	145K	9.3%	Form 4
Dec 31, 2024	John Coll SVP, Global MSS	Sold10b5-1 plan	2,000	$108.40	217K	12%	Form 4
Nov 27, 2024 – Nov 29, 2024	David S. Graziosi Chair, President and CEO	SoldNo plan 2 parts	13,313	$119.55 average	$1.59M	7.3%	Form 4
Nov 25, 2024 – Nov 26, 2024	David S. Graziosi Chair, President and CEO	SoldNo plan 2 parts	8,935	$120.10 average	$1.07M	5.0%	Form 4
Nov 15, 2024	John Coll SVP, Global MSS	SoldNo plan	2,000	$117.73	235K	10%	Form 4

Aug 21No plan
David S. Graziosi
Chair, President and CEO · sold 26,708 at avg $132.98
$3.55M
8.1% of stake
Aug 11No plan
Eric C. Scroggins
CLO & Asst. Secretary · sold 1,050 at $125.00
131K
5.9% of stake
Aug 10No plan
G Frederick Bohley
See Remarks · sold 3,961 at $122.38
485K
3.4% of stake
May 8No plan
Scott A Mell
CFO & Treasurer · sold 2,270 at avg $125.00
284K
68% of stake
Mar 9No plan
Eric C. Scroggins
CLO & Asst. Secretary · sold 1,313 at $114.40
150K
6.9% of stake
Feb 1310b5-1 plan
G Frederick Bohley
Allison COO,Pres.&BU Leader AT · sold 10,348 at avg $116.40
$1.2M
9.4% of stake
Dec 31, 202510b5-1 plan
John Coll
SVP, Global MSS · sold 1,791 at $98.79
177K
8.6% of stake
Sep 30, 202510b5-1 plan
John Coll
SVP, Global MSS · sold 1,788 at $84.32
151K
7.9% of stake
Aug 14, 2025
G Frederick Bohley
Chief Operating Officer · bought 3,000 at $88.50
266K
3.1% of stake
Jun 30, 202510b5-1 plan
John Coll
SVP, Global MSS · sold 1,788 at $94.69
169K
7.4% of stake
May 21, 202510b5-1 plan
Ryan A. Milburn
VP, Engr. & Tech Dev. · sold 3,412 at $105.24
359K
22% of stake
May 7, 2025No plan
Eric C. Scroggins
VP, Gen. Counsel & Assist. Sec · sold 5,358 at $98.05
525K
28% of stake
Apr 1, 202510b5-1 plan
John Coll
SVP, Global MSS · sold 1,788 at $95.33
170K
6.9% of stake
Mar 6, 202510b5-1 plan
Ryan A. Milburn
VP, Engr. & Tech Dev. · sold 4,546 at $96.20
437K
24% of stake
Feb 27, 2025No plan
Teresa Van Niekerk
VP, Chief Procurement Officer · sold 8,191 at $101.09
828K
33% of stake
Feb 25, 2025 – Feb 26, 202510b5-1 plan
Ryan A. Milburn
VP, Engr. & Tech Dev. · sold 1,455 at avg $99.34
145K
9.3% of stake
Dec 31, 202410b5-1 plan
John Coll
SVP, Global MSS · sold 2,000 at $108.40
217K
12% of stake
Nov 27, 2024 – Nov 29, 2024No plan
David S. Graziosi
Chair, President and CEO · sold 13,313 at avg $119.55
$1.59M
7.3% of stake
Nov 25, 2024 – Nov 26, 2024No plan
David S. Graziosi
Chair, President and CEO · sold 8,935 at avg $120.10
$1.07M
5.0% of stake
Nov 15, 2024No plan
John Coll
SVP, Global MSS · sold 2,000 at $117.73
235K
10% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch ALSN, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

ALSN is in 158 US ETFs. The largest of them, with ALSN's weight in each:

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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