PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: May 08, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 11.79% (2 years)
Historical Dilution Factor: moderate recent dilution
Outstanding Shares
310M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

PACB currently has 306M outstanding shares. with minimal authorized share overhang for future dilution. The company has diluted shareholders by 11.79% over the past 2 years through share issuances.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 08, 2026

10-Q filing | 305.8M shares outstanding

310M 0
Nov 06, 2025

10-Q filing | 300.8M shares outstanding

300M 0
Aug 07, 2025

10-Q filing | 300.2M shares outstanding

300M 0
May 12, 2025

10-Q filing | 296.9M shares outstanding

300M 0
Mar 17, 2025

10-K filing | 288.4M shares outstanding

290M 0
Nov 22, 2024

8-K filing: Pacific Biosciences of California, Inc. issued $200 million in aggregate principal amount of 1.50% Convertible Senior Notes due 2029, 20,451,570 shares of common stock, and made a $50 million cash payment in exchange for $459 million aggregate principal amount of its 1.50% Convertible Senior Notes due 2028.

270M 0
Nov 12, 2024

10-Q filing | 272.9M shares outstanding

270M 0
Aug 09, 2024

10-Q filing | 272.4M shares outstanding

270M 0
May 09, 2024

10-Q filing | 269.6M shares outstanding

270M 0
Feb 28, 2024

10-K filing | 253.6M shares outstanding

250M 0
Nov 03, 2023

10-Q filing | 255.0M shares outstanding

260M 0
Aug 04, 2023

10-Q filing | 250.1M shares outstanding

250M 0
Aug 02, 2023

8-K filing: The Company entered into a Merger Agreement to acquire Apton Biosystems, Inc. and will issue up to approximately 6.3 million shares of common stock to Apton Securityholders upon closing of the acquisition. Apton Securityholders will also be entitled to receive $25 million, which the Company may elect to pay in cash, shares of Common Stock or a combination of cash and shares of Common Stock.

240M 0
May 04, 2023

10-Q filing | 242.0M shares outstanding

240M 0
Feb 28, 2023

10-K filing | 224.6M shares outstanding

220M 0
Jan 27, 2023

8-K filing: Pacific Biosciences of California, Inc. closed a public offering of 17,500,000 shares of common stock at $10.00 per share, and an additional 2,625,000 shares were sold upon the exercise of the underwriter's option, resulting in net proceeds of approximately $189.2 million. ($175.0M proceeds)

230M 0
Nov 08, 2022

10-Q filing | 225.1M shares outstanding

230M 0
Aug 08, 2022

10-Q filing | 224.5M shares outstanding

220M 0
May 26, 2022

POS AM filing: This post-effective amendment deregisters securities of the Company registered under such Registration Statement that remain unsold as of the date hereof, if any.

220M 0
May 06, 2022

10-Q filing | 222.3M shares outstanding

220M 0
Feb 28, 2022

10-K filing | 204.1M shares outstanding

200M 0
Nov 05, 2021

10-Q filing | 215.1M shares outstanding

220M 0
Sep 20, 2021

8-K filing: The company completed a private placement of 11,214,953 shares of common stock at $26.75 per share, resulting in gross proceeds of approximately $300 million. ($300.0M proceeds)

200M 0
Aug 06, 2021

10-Q filing | 198.6M shares outstanding

200M 0
May 06, 2021

10-Q filing | 194.8M shares outstanding

190M 0
Feb 26, 2021

10-K filing | 175.0M shares outstanding

170M 0
Nov 03, 2020

10-Q filing | 180.2M shares outstanding

180M 0
Aug 06, 2020

10-Q filing | 154.4M shares outstanding

150M 0
Jun 30, 2020

S-3/A filing: Pacific Biosciences of California, Inc. is filing an S-3/A form to register securities for potential sale, with an aggregate offering price not to exceed $250,000,000.

150M 0
Jun 10, 2020

S-3 filing: Pacific Biosciences of California, Inc. is offering securities, including common stock, preferred stock, and debt securities, up to an aggregate offering price of $250,000,000.

150M 0
May 08, 2020

10-Q filing | 153.5M shares outstanding

150M 0
Feb 28, 2020

10-K filing | 153.1M shares outstanding

150M 0
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