Alumis CDO sells 2,572 shares in tax sell-to-cover
Rhea-AI Filing Summary
ALUMIS INC. Chief Development Officer Bradley Mark Christopher sold 2,572 shares of common stock on August 3, 2026 at a weighted average price of $26.37 per share in a sell-to-cover transaction to satisfy tax obligations from restricted stock unit vesting, and the sale is described as non-discretionary. The shares were sold in multiple transactions at prices ranging from $25.60 to $26.42. After this sale, he directly holds 48,533 shares, including 2,377 shares acquired on May 20, 2026 under the 2024 Employee Stock Purchase Plan. He also serves as trustee for two 2025 GRATs that hold shares, each receiving 20,026 shares transferred from related 2023 GRATs on October 30, 2025.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Seller: 2,572 shares
Net Sell
3 txns
Insider
Bradley Mark Christopher
Role
Chief Development Officer
Sold
2,572 shs ($68K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock F1, F2, F3 | 2,572 | $26.37 | $68K |
| holding | Common Stock F4 | -- | -- | -- |
| holding | Common Stock F5 | -- | -- | -- |
Holdings After Transaction:
Common Stock — 48,533 shares (Direct);
Common Stock — 40,052 shares (Indirect, By GRAT)
Footnotes (5)
- F1. The sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy tax obligations of the Reporting Person incurred with the vesting and settlement of restricted stock units granted on July 29, 2025, and does not represent a discretionary sale by the Reporting Person.
- F2. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $25.60 to $26.42 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F3. Includes 2,377 shares acquired on May 20, 2026 under the Issuer's 2024 Employee Stock Purchase Plan.
- F4. Shares are owned directly by JB 2025 GRAT, for which Reporting Person serves as a trustee. 20,026 shares were transferred from the JB 2023 GRAT on October 30, 2025.
- F5. Shares are owned directly by MB 2025 GRAT, for which Reporting Person serves as a trustee. 20,026 shares were transferred from the MB 2023 GRAT on October 30, 2025.
Key Figures
Shares sold: 2,572 shares
Average sale price: $26.37 per share
Sale price range: $25.60–$26.42 per share
+3 more
6 metrics
Shares sold
2,572 shares
Common stock sold on August 3, 2026 in a sell-to-cover transaction
Average sale price
$26.37 per share
Weighted average price for the 2,572 shares sold on August 3, 2026
Sale price range
$25.60–$26.42 per share
Range of prices for multiple sale transactions on August 3, 2026
Direct holdings after sale
48,533 shares
Direct ALUMIS common stock held by Bradley Mark Christopher after the sale
ESPP shares included
2,377 shares
Shares acquired on May 20, 2026 under the 2024 Employee Stock Purchase Plan, included in direct holdings
Shares transferred to each 2025 GRAT
20,026 shares
Shares transferred from 2023 GRATs to each 2025 GRAT on October 30, 2025
Key Terms
sell-to-cover, restricted stock units, weighted average sale price, Employee Stock Purchase Plan, +1 more
5 terms
sell-to-cover financial
"policy requiring sell-to-cover to satisfy tax obligations"
Sell-to-cover is when part of newly issued or exercised company stock is immediately sold to pay required taxes and fees, so the recipient keeps the remaining shares. For investors this matters because it reduces the number of shares insiders or employees actually hold after a grant, can create small, routine share sales that aren’t signal of cashing out, and slightly increases share supply on the market—like selling a portion of a paycheck to cover the tax bill.
restricted stock units financial
"tax obligations ... incurred with the vesting and settlement of restricted stock units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
weighted average sale price financial
"The reported price in Column 4 is a weighted average sale price."
Employee Stock Purchase Plan financial
"acquired on May 20, 2026 under the Issuer's 2024 Employee Stock Purchase Plan."
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
GRAT financial
"Shares are owned directly by JB 2025 GRAT, for which Reporting Person serves as a trustee."
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider stock sale did ALUMIS INC. (ALMS) report for August 3, 2026?
ALUMIS reported that Chief Development Officer Bradley Mark Christopher sold 2,572 shares of common stock on August 3, 2026 at a $26.37 average price, in multiple transactions within a $25.60–$26.42 range, to cover tax obligations from vested restricted stock units.
Was the ALUMIS (ALMS) insider sale by Bradley Mark Christopher discretionary?
The sale is described as non-discretionary. It was executed under ALUMIS’s policy requiring sell-to-cover transactions to satisfy tax obligations arising from the vesting and settlement of restricted stock units granted on July 29, 2025.
What role do GRATs play in Bradley Mark Christopher’s ALUMIS (ALMS) holdings?
Certain ALUMIS shares are held by 2025 GRATs for which Bradley Mark Christopher serves as trustee. Each of these trusts received 20,026 shares transferred from corresponding 2023 GRATs on October 30, 2025, and these positions are reported as indirect ownership.
AI-generated analysis. How Rhea-AI works. Not financial advice.
