Form 4 for MBX MBX Biosciences, Inc.
Accepted 2024-09-17 00:00:00 ET · period of report 2024-09-16 · accession 0000950170-24-107527 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2024-09-17 | 2024-09-16 | MBX | Hawryluk P. Kent | Pres, CEO, Dir | C - Cnv Deriv | — | +283.8K | 481.4K | +144% | — |
| DI | 2024-09-17 | 2024-09-16 | MBX | Hawryluk P. Kent | Pres, CEO, Dir | C - Cnv Deriv | — | +115.9K | 398.3K | +41% | — |
| DM | 2024-09-17 | 2024-09-16 | MBX | Hawryluk P. Kent | Pres, CEO, Dir | C - Cnv Deriv | — | -3.41M | 0 | -100% | — |
| DMI | 2024-09-17 | 2024-09-16 | MBX | Hawryluk P. Kent | Pres, CEO, Dir | C - Cnv Deriv | — | -1.39M | 0 | -100% | — |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2024-09-16 | C | A | 283,846 | — | 481,397 | D By Trust | — | — | (F1) Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date. (F2) Shares held by the P. Kent Hawryluk Revocable Trust dated January 25, 2011, of which the Reporting Person serves as trustee. The Reporting Person disclaims beneficial ownership except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. |
| 2 | Common | Common Stock | 2024-09-16 | C | A | 115,914 | — | 398,277 | I | — | — | (F1) Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date. |
| 3 | Derivative | Series A Convertible Preferred Stock | 2024-09-16 | C | D | 2,015,681 | — | 0 | D By Trust | — · — to — | 167,664 Common Stock | (F1) Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date. (F2) Shares held by the P. Kent Hawryluk Revocable Trust dated January 25, 2011, of which the Reporting Person serves as trustee. The Reporting Person disclaims beneficial ownership except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. |
| 4 | Derivative | Series A Convertible Preferred Stock | 2024-09-16 | C | D | 345,705 | — | 0 | I By Trust | — · — to — | 28,755 Common Stock | (F1) Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date. (F2) Shares held by the P. Kent Hawryluk Revocable Trust dated January 25, 2011, of which the Reporting Person serves as trustee. The Reporting Person disclaims beneficial ownership except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. |
| 5 | Derivative | Series C Convertible Preferred Stock | 2024-09-16 | C | D | 970,873 | — | 0 | I | — · — to — | 80,757 Common Stock | (F1) Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date. |
| 6 | Derivative | Series B Convertible Preferred Stock | 2024-09-16 | C | D | 76,969 | — | 0 | I | — · — to — | 6,402 Common Stock | (F1) Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date. |
| 7 | Derivative | Series B Convertible Preferred Stock | 2024-09-16 | C | D | 1,396,762 | — | 0 | D By Trust | — · — to — | 116,182 Common Stock | (F1) Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock (collectively, the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date. (F2) Shares held by the P. Kent Hawryluk Revocable Trust dated January 25, 2011, of which the Reporting Person serves as trustee. The Reporting Person disclaims beneficial ownership except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. |