SERA PROGNOSTICS, INC. (SERA) - 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: 35.34% of current shares
Recent Dilution: 18.18% (2 years)
Historical Dilution Factor: moderate recent dilution
Outstanding Shares
38M
Potential Supply
13M
Additional shares possible
Splits
None
Past 2 years

Summary

SERA currently has 38.2M outstanding shares. with moderate dilution risk from 13.5M authorized shares representing 35.3% potential dilution. The company has diluted shareholders by 18.18% 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 | 38.2M shares outstanding

38M 13M
Mar 18, 2026

10-K filing | 38.2M shares outstanding

38M 13M
Nov 13, 2025

10-Q filing | 37.6M shares outstanding

38M 13M
Aug 06, 2025

10-Q filing | 37.1M shares outstanding

37M 13M
May 07, 2025

10-Q filing | 36.7M shares outstanding

37M 13M
Mar 19, 2025

10-K filing | 33.2M shares outstanding

33M 13M
Nov 06, 2024

10-Q filing | 33.5M shares outstanding

34M 13M
Aug 07, 2024

10-Q filing | 32.9M shares outstanding

33M 13M
Aug 07, 2024

S-3 filing: Sera Prognostics, Inc. may offer and sell up to $100,000,000 of securities from time to time in one or more offerings, including Class A common stock, preferred stock, or debt securities, and intends to use the net proceeds from this offering for operations, commercialization of the PreTRM test, further development of product candidates, and other general corporate purposes.

32M 13M
May 08, 2024

10-Q filing | 32.2M shares outstanding

32M 0
Mar 20, 2024

10-K filing | 31.2M shares outstanding

31M 0
Nov 08, 2023

10-Q filing | 31.3M shares outstanding

31M 0
Aug 09, 2023

10-Q filing | 31.1M shares outstanding

31M 0
May 10, 2023

10-Q filing | 31.0M shares outstanding

31M 0
Mar 22, 2023

10-K filing | 30.9M shares outstanding

31M 0
Nov 09, 2022

10-Q filing | 31.0M shares outstanding

31M 0
Aug 10, 2022

10-Q filing | 30.9M shares outstanding

31M 0
May 10, 2022

10-Q filing | 30.8M shares outstanding

31M 0
Mar 29, 2022

10-K filing | 29.5M shares outstanding

29M 0
Nov 09, 2021

10-Q filing | 29.3M shares outstanding

29M 0
Aug 30, 2021

10-Q filing | 2.0M shares outstanding

2M 0
Jul 20, 2021

8-K filing: Sera Prognostics, Inc. completed its initial public offering of 4,687,500 shares of its common stock at a public offering price of $16.00 per share on July 19, 2021. ($75.0M proceeds)

N/A 0
Jun 11, 2021

S-1 filing: This is an S-1 filing for common stock.

N/A 0
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