ALLEGRO MICROSYSTEMS, INC. (ALGM) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: May 21, 2026

Risk Assessment Details

Potential Dilution: 22.83% of current shares
Recent Dilution: 2.33% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
190M
Potential Supply
42M
Additional shares possible
Splits
None
Past 2 years

Summary

ALGM currently has 185M outstanding shares. with moderate dilution risk from 42.3M authorized shares representing 22.8% potential dilution. The company has minimally diluted shareholders by 2.33% over the past 2 years.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 21, 2026

10-K filing | 185.0M shares outstanding

190M 42M
Jan 30, 2026

10-Q filing | 185.2M shares outstanding

190M 42M
Oct 31, 2025

10-Q filing | 185.1M shares outstanding

190M 42M
Aug 01, 2025

10-Q filing | 184.6M shares outstanding

180M 42M
May 22, 2025

10-K filing | 187.7M shares outstanding

190M 42M
Jan 31, 2025

10-Q filing | 184.0M shares outstanding

180M 42M
Nov 01, 2024

10-Q filing | 189.2M shares outstanding

190M 42M
Aug 07, 2024

8-K filing: Allegro MicroSystems, Inc. completed the repurchase of 10,017,315 shares of its common stock from Sanken Electric Co., Ltd. for an unmentioned price, funded by a new $400 million term loan.

190M 42M
Aug 02, 2024

10-Q filing | 193.5M shares outstanding

190M 42M
Jul 26, 2024

8-K filing: Allegro MicroSystems, Inc. completed an offering of 28,750,000 shares of its common stock to underwriters at a price of $23.16 per share on July 26, 2024.

190M 42M
Jul 23, 2024

8-K filing: Allegro MicroSystems, Inc. entered into a share repurchase agreement with Sanken Electric Co., Ltd. to repurchase 38,767,315 shares of its common stock, and also entered into a Second Amended and Restated Stockholders Agreement with Sanken.

190M 42M
May 23, 2024

10-K filing | 194.7M shares outstanding

190M 42M
Feb 06, 2024

10-Q filing | 192.7M shares outstanding

190M 42M
Nov 06, 2023

10-Q filing | 192.4M shares outstanding

190M 42M
Aug 04, 2023

10-Q filing | 192.0M shares outstanding

190M 42M
May 25, 2023

10-K filing | 191.2M shares outstanding

190M 42M
Feb 01, 2023

10-Q filing | 191.3M shares outstanding

190M 42M
Oct 31, 2022

10-Q filing | 191.3M shares outstanding

190M 42M
Aug 01, 2022

10-Q filing | 190.6M shares outstanding

190M 42M
May 18, 2022

10-K filing | 189.7M shares outstanding

190M 42M
Feb 02, 2022

10-Q filing | 189.7M shares outstanding

190M 42M
Nov 03, 2021

8-K filing: OEP SKNA, L.P. sold 7,500,000 shares of Allegro MicroSystems, Inc. common stock to Barclays Capital Inc. at a price of $30.25 per share, with an additional 1,125,000 shares sold upon exercise of an option, the offering closed on November 3, 2021.

190M 42M
Oct 29, 2021

10-Q filing | 189.7M shares outstanding

190M 42M
Jul 30, 2021

10-Q filing | 189.6M shares outstanding

190M 42M
May 19, 2021

10-K filing | 176.4M shares outstanding

180M 42M
Feb 02, 2021

10-Q filing | 189.4M shares outstanding

190M 42M
Feb 02, 2021

S-1 filing: This S-1 filing outlines the offering of common stock by selling stockholders and an option for underwriters to purchase additional shares, with the company not receiving any proceeds from the sale.

190M 42M
Nov 20, 2020

10-Q filing | 189.4M shares outstanding

190M 25M
Oct 21, 2020

S-1/A filing: This S-1/A filing from 2020-10-21 relates to an offering of common stock with a proposed offering of 25,000,000 shares and estimates net proceeds of $298.6 million, based on an assumed initial public offering price of $13.00 per share, to be used to repay borrowings under our Term Loan Facility.

160M 25M
Oct 13, 2020

S-1/A filing: This is an S-1/A filing related to a repurchase agreement for Class L shares in connection with an IPO.

N/A 0
Oct 06, 2020

S-1 filing: This is an S-1 filing related to a planned IPO, covering the offering of common stock by the company and selling stockholders, with an option for underwriters to purchase additional shares.

N/A 0
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