ALSN (Allison Transmission Holdings Inc) historical data

STOCKListed

SymbolALSN
NameAllison Transmission Holdings Inc
History2012-03-16 to 2026-10-08 (about 14 years)
Bar sizesDaily, hourly, 5-minute and 1-minute
AdjustmentsUnadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read
SurvivorshipIncluded in the survivorship-free universe
Free tierLast 12 months of daily bars

Institutional ownership (13F, 2026Q2)

Managers holding569
Shares held85,502,613 ($9.6bn reported value)
Quarter flows83 new, 174 added, 233 trimmed, 69 exited; +922,575 shares vs the prior quarter

From SEC Form 13F filings. Every holder, line by line, and the full history since 2013: yf.Client().holders("ALSN") on the look-back bundles. Top holders of ALSN · All 13F managers

Get it in Python

import finzdata as yf
df = yf.Ticker("ALSN").history(start="2012-03-16", interval="1d")
df.tail()

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