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Financial transparency data from public SEC filings.

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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

ALSN

Allison Transmission Holdings Inc

Superinvestors

Institutional investors holding ALSN

Consensus →
InvestorFundWeightSharesValueQuarter
Mario CibelliMarathon Partners0.73%50,000$1.4M2013Q4
Chase ColemanTiger Global Management0.24%708,000$19.5M2013Q4
Tweedy Browne Co.Tweedy Browne Value Fund0.15%15,796$1.8M2026Q1
Bill NygrenOakmark Select Fund – Harris Associates0.08%532,007$62.3M2026Q1
Polen Capital ManagementPolen Capital Management0.00%4,389$417K2025Q2
Dodge & CoxDodge & Cox0.00%7,000$269K2022Q2

Congressional Activity

Congressional data coming soon

Insider Activity

35

Total trades

$516K

Volume

10

Buys

3

Sells

Last trade: May 8, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
May 8, 2026Scott A MellSell$117K
May 8, 2026Scott A MellSell$167K

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.

May 8, 2026
Scott A Mell
Option
$120K
May 7, 2026Scott A MellBuy–
May 7, 2026Scott A MellBuy–
May 7, 2026Scott A MellBuy–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellBuy–
May 6, 2026Scott A MellBuy–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellBuy–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellBuy–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellBuy–
May 6, 2026Scott A MellBuy–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellOption–
May 6, 2026Scott A MellBuy–
Apr 14, 2026Scott A MellOption–
Apr 14, 2026Scott A MellOption–
Apr 14, 2026Scott A MellSell$113K
Apr 14, 2026Scott A MellOption–
Apr 14, 2026Scott A MellOption–
Apr 14, 2026Scott A MellOption–
Apr 14, 2026Scott A MellOption–