Fastly, Inc. (FSLY) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: May 06, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 12.15% (2 years)
Historical Dilution Factor: moderate recent dilution
Outstanding Shares
150M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

FSLY currently has 154M outstanding shares. with minimal authorized share overhang for future dilution. The company has diluted shareholders by 12.15% over the past 2 years through share issuances.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 06, 2026

10-Q filing | 153.6M shares outstanding

150M 0
Dec 17, 2025

8-K filing: Fastly may issue a maximum of 15,624,990 shares of Class A Common Stock upon conversion of Option Notes.

150M 0
Dec 09, 2025

8-K filing: Fastly, Inc. issued $160,000,000 aggregate principal amount of its 0% Convertible Senior Notes due 2030 and granted the initial purchasers an option to purchase up to an additional $20,000,000 aggregate principal amount of Notes.

150M 0
Aug 06, 2025

10-Q filing | 145.8M shares outstanding

150M 0
May 07, 2025

10-Q filing | 143.3M shares outstanding

140M 0
Feb 26, 2025

10-K filing | 138.1M shares outstanding

140M 0
Nov 07, 2024

10-Q filing | 139.2M shares outstanding

140M 0
Aug 08, 2024

10-Q filing | 137.4M shares outstanding

140M 0
May 01, 2024

10-Q filing | 134.6M shares outstanding

130M 0
Feb 22, 2024

10-K filing | 128.8M shares outstanding

130M 0
Nov 03, 2023

10-Q filing | 129.9M shares outstanding

130M 0
Aug 02, 2023

10-Q filing | 127.9M shares outstanding

130M 0
May 03, 2023

10-Q filing | 125.4M shares outstanding

130M 0
Apr 18, 2023

8-K filing: The company approved the Bergman Performance Award, a ten-year nonstatutory stock option to purchase an aggregate of 2,296,000 shares of Common Stock, which equaled approximately 1.81% of the Company's outstanding shares of Common Stock as of April 12, 2023, that are eligible to vest in four tranches, subject to stockholder approval at the 2023 annual meeting.

120M 0
Feb 27, 2023

10-K filing | 121.7M shares outstanding

120M 0
Nov 04, 2022

10-Q filing | 122.3M shares outstanding

120M 0
Aug 05, 2022

10-Q filing | 121.2M shares outstanding

120M 0
May 05, 2022

10-Q filing | 119.7M shares outstanding

120M 0
Mar 01, 2022

10-K filing | 116.1M shares outstanding

120M 0
Nov 08, 2021

10-Q filing | 116.5M shares outstanding

120M 0
Aug 06, 2021

10-Q filing | 115.3M shares outstanding

120M 0
May 07, 2021

10-Q filing | 105.8M shares outstanding

110M 0
Mar 01, 2021

10-K filing | 104.3M shares outstanding

100M 0
Nov 06, 2020

10-Q filing | 102.4M shares outstanding

100M 0
Aug 07, 2020

10-Q filing | 90.4M shares outstanding

90M 0
May 18, 2020

S-1 filing: This S-1 filing indicates Fastly, Inc. is offering 6,000,000 shares of Class A common stock to the public, with underwriters having an option to purchase an additional 900,000 shares.

72M 0
May 08, 2020

10-Q filing | 61.0M shares outstanding

61M 0
Mar 04, 2020

10-K filing | 25.0M shares outstanding

25M 0
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