Athira Pharma, Inc. (ATHA) - Dilution Analysis
Visualizing historical and potential share dilution over time
Dilution Analysis
Risk Assessment Details
Summary
ATHA currently has 9.39M outstanding shares. with significant dilution risk as 65.8M authorized shares could dilute existing holders by 700.7%. The company has significantly diluted shareholders by 281.05% over the past 2 years, indicating aggressive capital raising. Recent corporate actions include 1 stock split (positive for accessibility) and 1 reverse split (concerning signal).
Share Structure Timeline
Historical Data Points
| Date | Event | Outstanding | Supply |
|---|---|---|---|
| May 07, 2026 |
10-Q filing | 9.4M shares outstanding |
9.4M | 66M |
| Mar 31, 2026 |
S-1/A filing: This prospectus relates to the disposition of up to 5,502,402 shares of common stock issuable upon the exercise of a pre-funded warrant by the selling stockholder. |
3.9M | 66M |
| Mar 31, 2026 |
10-K filing | 9.3M shares outstanding |
9.3M | 66M |
| Mar 31, 2026 |
S-1/A filing: This prospectus relates to the disposition of up to 58,464,567 shares of our common stock by selling stockholders. |
3.9M | 66M |
| Jan 20, 2026 |
S-3 filing: This prospectus relates to the disposition of up to 5,502,402 shares of common stock issuable upon the exercise of a pre-funded warrant by the selling stockholder. |
3.9M | 66M |
| Jan 20, 2026 |
S-3 filing: This S-3 filing from LeonaBio, Inc. relates to the disposition of up to 58,464,567 shares of common stock by selling stockholders. |
3.9M | 60M |
| Dec 18, 2025 |
8-K filing: Athira Pharma, Inc. enters into a private placement agreement to issue common stock, pre-funded warrants, and accompanying warrants for gross proceeds of approximately $90 million, and issues pre-funded warrants to Sermonix for $34.9 million in equity. ($124.85M proceeds) |
3.9M | 1.9M |
| Sep 17, 2025 |
Stock Split
8-K filing: Stock split 1-for-10 | Outstanding: 39,092,961 → 3,909,296 |
3.9M | 1.9M |
| Aug 07, 2025 |
10-Q filing | 39.1M shares outstanding |
39M | 19M |
| May 09, 2025 |
10-Q filing | 39.0M shares outstanding |
39M | 19M |
| Feb 27, 2025 |
10-K filing | 38.5M shares outstanding |
38M | 19M |
| Nov 07, 2024 |
10-Q filing | 38.5M shares outstanding |
39M | 19M |
| Oct 21, 2024 |
S-3 filing: Athira Pharma, Inc. is filing an S-3 to offer common stock, preferred stock, debt securities, depositary shares, subscription rights, and purchase contracts for up to $300,000,000. |
38M | 19M |
| Aug 01, 2024 |
10-Q filing | 38.4M shares outstanding |
38M | 19M |
| May 15, 2024 |
10-Q filing | 38.3M shares outstanding |
38M | 19M |
| Feb 22, 2024 |
10-K filing | 38.0M shares outstanding |
38M | 19M |
| Nov 09, 2023 |
10-Q filing | 38.1M shares outstanding |
38M | 19M |
| Aug 10, 2023 |
10-Q filing | 38.0M shares outstanding |
38M | 19M |
| May 11, 2023 |
10-Q filing | 37.9M shares outstanding |
38M | 19M |
| Mar 23, 2023 |
10-K filing | 37.7M shares outstanding |
38M | 19M |
| Nov 10, 2022 |
10-Q filing | 37.8M shares outstanding |
38M | 19M |
| Aug 15, 2022 |
10-Q filing | 37.8M shares outstanding |
38M | 19M |
| May 12, 2022 |
10-Q filing | 37.6M shares outstanding |
38M | 19M |
| Mar 28, 2022 |
10-K filing | 37.6M shares outstanding |
38M | 19M |
| Nov 15, 2021 |
S-3 filing: ATHIRA PHARMA, INC. is filing an S-3 to register an indeterminate amount of common stock, preferred stock, debt securities, depositary shares, warrants to purchase common stock, preferred stock, debt securities or depositary shares of the registrant, subscription rights to purchase common stock, preferred stock, debt securities, depositary shares, warrants or units consisting of some or all of these securities of the registrant, purchase contracts, and units consisting of some or all of these securities, as may be sold from time to time by the registrant up to $300,000,000. |
37M | 19M |
| Nov 10, 2021 |
10-Q filing | 37.4M shares outstanding |
37M | 19M |
| Aug 16, 2021 |
10-Q filing | 37.3M shares outstanding |
37M | 19M |
| May 13, 2021 |
10-Q filing | 37.2M shares outstanding |
37M | 19M |
| Mar 25, 2021 |
10-K filing | 37.1M shares outstanding |
37M | 19M |
| Jan 19, 2021 |
S-1 filing: This S-1 filing is for an offering of common stock with a proposed amount of $119,646,000 and an offering of 4,000,000 shares of common stock. The last reported sale price of the common stock on January 15, 2021, was $26.55 per share. |
32M | 19M |
| Nov 12, 2020 |
10-Q filing | 32.5M shares outstanding |
32M | 10M |
| Sep 17, 2020 |
S-1/A filing: S-1/A filing for convertible preferred stock with 12,646,147 shares authorized and 12,503,009 shares issued and outstanding. |
N/A | 10M |
| Sep 14, 2020 |
S-1/A filing: Athira Pharma, Inc. is offering 10,000,000 shares of common stock in its initial public offering, with an estimated price range of $15.00 to $17.00 per share, for a total proposed amount of $195,500,000. |
N/A | 10M |
| Sep 09, 2020 |
S-1/A filing: This S-1/A filing outlines the terms of an underwriting agreement for Athira Pharma, Inc. to issue and sell common stock to underwriters, with Goldman Sachs & Co. LLC and Jefferies LLC as representatives. |
N/A | 0 |
| Aug 26, 2020 |
S-1 filing: Athira Pharma, Inc. is offering shares of common stock in an initial public offering, with a proposed maximum aggregate offering price of $100,000,000, including additional shares that the underwriters have the option to purchase. |
N/A | 0 |