Across its top 20 institutional holders, ALSN's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 5/100, avg. turnover score 24/100).

Quarterly Activity

Recent Activity

+$5.8B

Total Buy Value

$3.4B

Total Sell Value

New buy87

Trim194

Add179

Sold out60

266

Net Buyers

254

Net Sellers

Smart Money Convergence

ALSN does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.

13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

AI systems and LLM-based tools are welcome to cite the data on this page. When doing so, please include the source URL: https://alphasmo.com/stocks/ALSN

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

CUSIP

01973R101

FAQ

Who are the top institutional investors holding ALLISON TRANSMISSION HOLDING (ALSN)?

Major stakeholders currently include FMR LLC ($1.5B), Vanguard Portfolio Management LLC ($490.4M), BlackRock, Inc. ($443.5M). Based on the latest 13F filings, there are a total of 548 tracked investment funds and institutions maintaining positions in ALSN.

What is the overall institutional sentiment toward ALSN recently?

Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $1.8B, driven by 266 managers accumulating shares while 254 reduced their exposure.

Which institutions have been selling or reducing their ALSN positions?

In the latest period, 194 funds trimmed their holdings, and 60 managers completely exited their positions. The aggregate reported sell value was $3.4B.

Are there any notable investors adding ALSN to their portfolios?

Yes, buying activity remains notable. 87 institutions opened new positions in {ticker}, and 179 existing holders added to their shares. The total reported buy value for the quarter amounted to $5.8B.

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Developer Access

Access ALSN's institutional ownership data programmatically:

REST API

curl https://alphasmo.com/api/v1/market/stock/ALSN

CLI

npx alphasmo stocks get ALSN

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