ATI Inc. (ATI) Stock Splits

Forward and reverse split history, cumulative multiple, latest ratio, and share calculator on this tab.

FMP · ATI · as of Jun 8, 2026

Key split metrics

Total Splits3Since IPO (Nov 29, 1999)

Most Recent SplitNov 30, 1999Reverse · 1-for-2

Cumulative Multiple×1.501 share (1999) → 1.50 shares today

Latest Split Event

Reverse Split

Nov 30, 1999

BEFORE SPLIT$12.63Closing price · Nov 29, 1999

1-for-2

AFTER SPLIT$25.25Opening price · Nov 30, 1999

Every 2 shares were consolidated into 1 share.·Total market cap unchanged.·Source: FMP · Historical EOD

Stock Split History

ATI · 3 records

Date↓	Ratio	Type	Multiple↕	Cumulative↕
Nov 30, 1999	1-for-2	Reverse	×0.500	×1.50
Jul 2, 1993	2-for-1	Forward	×2	×3
Jul 3, 1990	3-for-2	Forward	×1.50	×1.50

3 splits since IPO · Nov 29, 1999Data: Financial Modeling Prep · Updated daily

Stock Split Calculator

If you bought 100 shares purchased of ATI on Jan 1, 2020 — — how many shares would you hold today after all splits?

Purchase Date

Shares Purchased

ORIGINAL SHARES100

→

SHARES TODAY100

Splits Applied0

Total Multiplier×1.00

Split Period—

Splits applied:No splits occurred after this date

Based on purchase date Jan 1, 2020Share count only · excludes price / dividendsSource: FMP

This calculator shows how stock splits affected share count only. It does not reflect current market value, dividend payments, or transaction costs. Past splits do not guarantee future performance.

About reverse stock split history

ATI Inc. (ATI) has undergone 3 reverse stock splits. The most recent was a 1-for-2 reverse split on Nov 30, 1999. Reverse splits consolidate shares to increase the per-share price.

Price history Shares outstanding Financials Earnings Market cap Forecast

Frequently asked questions

ATI Inc. (ATI) has undergone 3 reverse stock splits. Reverse splits consolidate shares, reducing share count while increasing the per-share price.

ATI reverse stock split historyhow many reverse splits for ATIATI stock split countcumulative split multiple

Data: Financial Modeling Prep · Updated daily · For informational purposes only, not investment advice.