Allison Transmission Holdings, Inc.
Allison Transmission Holdings, Inc. (ALSN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ALSN · as of Sep 30, 2025
Ownership Breakdown
526
Institutional Holders
▼ 28 vs Q2
$7.12B
Total Inst. Value
▼ $916.99M vs Q2
82.94M
Shares Outstanding
freeFloat 99.10%
84.06M
13F Shares Held
▼ 644,592 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ALSN largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC motor vehicle parts & accessories | 11.92M | 14.20% | 14.20% | $1.01T | Nov 13, 2025 | ▼ 261.8K |
VANGUARD GROUP INC motor vehicle parts & accessories | 8.67M | 10.33% | 10.33% | $736.26B | Nov 7, 2025 | ▼ 142.8K |
BLACKROCK, INC. motor vehicle parts & accessories | 3.91M | 4.66% | 4.66% | $332.29B | Nov 12, 2025 | ▲ 74.7K |
RENAISSANCE TECHNOLOGIES LLC motor vehicle parts & accessories | 3.03M | 3.61% | 3.61% | $257.54B | Nov 13, 2025 | ▲ 75.6K |
FULLER & THALER ASSET MANAGEMENT, INC. motor vehicle parts & accessories | 2.85M | 3.39% | 3.39% | $241.68B | Nov 13, 2025 | ▼ 84.8K |
LSV ASSET MANAGEMENT motor vehicle parts & accessories | 2.44M | 2.90% | 2.90% | $207.02B | Nov 6, 2025 | ▼ 65.1K |
LONDON CO OF VIRGINIA motor vehicle parts & accessories | 2.24M | 2.67% | 2.67% | $190.27B | Nov 14, 2025 | ▼ 108.9K |
BURGUNDY ASSET MANAGEMENT LTD. motor vehicle parts & accessories | 2.21M | 2.63% | 2.63% | $193.04B | Nov 12, 2025 | ▼ 17.8K |
BOSTON PARTNERS motor vehicle parts & accessories | 2.04M | 2.43% | 2.43% | $173.09B | Nov 13, 2025 | ▲ 1.10M |
GEODE CAPITAL MANAGEMENT, LLC motor vehicle parts & accessories | 1.98M | 2.36% | 2.36% | $168.11B | Nov 12, 2025 | ▲ 13.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
27
Increased
+4.54M shares1
New Positions
first time holders22
Decreased
−1.57M shares0
Sold Out
fully exitedNet shares change (top 50)
+2.96M
+4.54M / −1.57M
Net new holders
+6
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ALSN insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
17
Buy transactions
15
Sell transactions
1.13
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
EVERITT DAVID C director | May 29, 2026 | Award | 73 | — | — | 3.8K | Form 4 ↗ |
Scroggins Eric C. CLO & Asst. Secretary | May 29, 2026 | Award | 13 | — | — | 50 | Form 4 ↗ |
Graziosi David S. Chair, President and CEO | May 29, 2026 | Award | 144 | — | — | 668 | Form 4 ↗ |
BARBOUR D. SCOTT director | May 29, 2026 | Award | 3 | — | — | 3 | Form 4 ↗ |
Bohley G Frederick See Remarks | May 29, 2026 | Award | 39 | — | — | 180 | Form 4 ↗ |
Christman Philip J director | May 29, 2026 | Award | 3 | — | — | 3 | Form 4 ↗ |
Perna Gustave director | May 29, 2026 | Award | 3 | — | — | 3 | Form 4 ↗ |
Price Michael Craig See Remarks | May 29, 2026 | Award | 42 | — | — | 84 | Form 4 ↗ |
Ostojic Sasha director | May 29, 2026 | Award | 3 | — | — | 3 | Form 4 ↗ |
HAZNEDAR CAROLANN I director | May 29, 2026 | Award | 59 | — | — | 1.6K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Allison Transmission Holdings, Inc. (ALSN) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 0.90%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Allison Transmission Holdings, Inc. is FMR LLC, holding approximately 11.92 million shares — equal to 14.20% of outstanding shares — as of September 30, 2025.
A total of 526 institutional investors currently hold ALSN stock, with a combined institutional value of approximately $7.12 billion as of the most recent 13F filing period.
Frequently asked questions
ALSN ownershipAllison Transmission Holdings, Inc. (ALSN) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is FMR LLC with a 14.20% stake. Company insiders hold 0.90%. Data sourced from SEC Form 13F as of September 30, 2025.