Helix Acquisition Corp. II (HLXB) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: May 12, 2026

Risk Assessment Details

Potential Dilution: 19.32% of current shares
Recent Dilution: 323.17% (2 years)
Historical Dilution Factor: significant recent dilution
Outstanding Shares
80M
Potential Supply
15M
Additional shares possible
Splits
None
Past 2 years

Summary

HLXB currently has 80.1M outstanding shares. with limited dilution risk as only 15.5M additional shares (19.3%) are authorized for issuance. The company has significantly diluted shareholders by 323.17% over the past 2 years, indicating aggressive capital raising.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 12, 2026

10-Q filing | 80.1M shares outstanding

80M 15M
Apr 30, 2026

POS AM filing: This prospectus relates to the offer and sale from time to time by the selling securityholders named in this prospectus of up to 63,054,549 shares of common stock of BridgeBio Oncology Therapeutics, Inc.

80M 15M
Nov 12, 2025

10-Q filing | 80.0M shares outstanding

80M 79M
Aug 29, 2025

S-1 filing: This S-1 filing registers 63,054,549 shares of common stock for sale by selling securityholders, including shares from a private placement, shares issued to the Sponsor and initial shareholders, shares issued to equity holders, and shares issuable upon exercise of stock options.

19M 79M
May 15, 2025

10-Q filing | 18.9M shares outstanding

19M 15M
Mar 11, 2025

10-K filing | 18.9M shares outstanding

19M 15M
Nov 14, 2024

10-Q filing | 18.9M shares outstanding

19M 15M
Aug 14, 2024

10-Q filing | 18.9M shares outstanding

19M 15M
May 15, 2024

10-Q filing | 18.4M shares outstanding

18M 15M
Feb 20, 2024

8-K filing: Helix Acquisition Corp. II consummated its initial public offering of 18,400,000 Class A ordinary shares at $10.00 per share, generating gross proceeds of $184,000,000, and completed a private sale of 509,000 Class A Ordinary Shares at $10.00 per share to Helix Holdings LLC, generating gross proceeds of $5,090,000. ($189.09M proceeds)

19M 15M
Feb 14, 2024

8-K filing: Helix Acquisition Corp. II consummated its initial public offering of 18,400,000 Class A ordinary shares at $10.00 per share, generating gross proceeds of $184,000,000, and completed the private sale of 509,000 Class A Ordinary Shares to the Sponsor at $10.00 per share, generating gross proceeds of $5,090,000. ($189.09M proceeds)

19M 15M
Feb 07, 2024

S-1/A filing: This S-1/A filing details the initial public offering of Helix Acquisition Corp. II, a blank check company, offering 15,000,000 Class A ordinary shares at $10.00 per share, along with a private placement of shares to the sponsor. The company intends to effect a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses.

19M 15M
Feb 02, 2024

S-1/A filing: Helix Acquisition Corp. II is offering Class A ordinary shares in an initial public offering to effect a business combination.

19M 15M
Jan 18, 2024

S-1 filing: Helix Acquisition Corp. II is offering Class A ordinary shares in an initial public offering with an underwriter option and concurrent private placements.

13M 12M
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