Shattuck Labs (NASDAQ: STTK) CTO option exercises and 23,465-share sale disclosed
Rhea-AI Filing Summary
Shattuck Labs Chief Technical Officer Abhinav A. Shukla reported option-related trades in the company’s common stock. On June 30 and July 1, he exercised stock options covering a total of 23,465 shares at an exercise price of $3.57 per share.
The same total of 23,465 shares of common stock was sold in open-market transactions at weighted average prices of about $7.08 and $7.07 per share, under a pre-arranged Rule 10b5-1 trading plan intended to fund the option exercise price and estimated tax withholding. After these transactions, he directly holds 86,380 shares of common stock and continues to hold unexercised portions of an option covering up to 52,200 shares that vests through January 25, 2027.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and Sale: 23,465 shares ($82K approx. pre-tax spread)
Exercise and Sale
6 txns
Insider
Shukla Abhinav A.
Role
Chief Technical Officer
Sold
23,465 shs ($166K)
Approx. gross sale proceeds
$166K
Approx. exercise cost
$84K
Approx. pre-tax spread
$82K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) | 100 | $0.00 | $0.00 |
| Exercise | Common Stock | 100 | $3.57 | $357.00 |
| Sale | Common Stock | 100 | $7.07 | $707.00 |
| Exercise | Stock Option (Right to Buy) | 23,365 | $0.00 | $0.00 |
| Exercise | Common Stock | 23,365 | $3.57 | $83K |
| Sale | Common Stock | 23,365 | $7.08 | $165K |
Holdings After Transaction:
Stock Option (Right to Buy) — 26,703 shares (Direct);
Common Stock — 86,380 shares (Direct)
Footnotes (3)
- F1. Sale of shares effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2026. The plan is intended to execute sales of shares received upon option exercise only as needed to fund the exercise price and estimated tax withholding associated with option exercises under the plan. Under the procedures of the administering broker, acquired shares are first sold to fund the aggregate exercise price and estimated tax withholding with respect to all possible option exercises in a particular order under the plan and only once fully funded will acquired shares be held by the Reporting Person.
- F2. The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $7.00 to $7.41, inclusive. 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.
- F3. This option represents a right to purchase a total of 52,200 shares of the Issuer's common stock, one quarter of which will vest on January 25, 2024, with the remaining three quarters vesting in equal monthly installments through January 25, 2027, subject to the Reporting Person's continued service to the Issuer.
Key Figures
Shares sold: 23,465 shares
Sale prices: $7.08 and $7.07 per share
Options exercised: 23,465 shares
+4 more
7 metrics
Shares sold
23,465 shares
Open-market sales of common stock on June 30 and July 1, 2026
Sale prices
$7.08 and $7.07 per share
Weighted average prices for June 30 and July 1, 2026 sales
Options exercised
23,465 shares
Common stock acquired via option exercises at $3.57 per share
Option exercise price
$3.57 per share
Exercise or conversion price for stock options
Shares held after
86,380 shares
Direct common stock ownership after reported transactions
Option grant size
52,200 shares
Total shares covered by the referenced stock option
Option expiration
January 25, 2033
Expiration date for the stock option right to buy
Key Terms
Rule 10b5-1 trading plan, weighted average price, Stock Option (Right to Buy), exercise or conversion of derivative security, +2 more
6 terms
Rule 10b5-1 trading plan regulatory
"Sale of shares effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported above is a weighted average price. The shares were sold in multiple transactions"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Stock Option (Right to Buy) financial
"security_title": "Stock Option (Right to Buy)""
exercise or conversion of derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
tax withholding financial
"intended to execute sales of shares received upon option exercise only as needed to fund the exercise price and estimated tax withholding"
Tax withholding is the practice of taking a portion of a payment—such as wages, dividends, or sale proceeds—before it reaches the recipient and sending that portion to the tax authority as an advance on the recipient’s eventual tax bill. For investors it matters because withholding reduces immediate cash received and affects after‑tax returns, estimated tax payments, and whether you may owe more or receive a refund when taxes are finally calculated, like having a small automatic savings set aside for your tax bill.
vesting financial
"one quarter of which will vest on January 25, 2024, with the remaining three quarters vesting in equal monthly installments"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
FAQ
Did the Shattuck Labs CTO exercise stock options in this Form 4?
Yes. Abhinav Shukla exercised stock options to acquire a total of 23,465 Shattuck Labs common shares at an exercise price of $3.57 per share. These exercises reduced his outstanding option balance from a larger grant that originally covered 52,200 shares.
What is the size and vesting schedule of the CTO’s STTK option grant?
The option grant referenced in the filing covers 52,200 shares of Shattuck Labs common stock. One quarter vested on January 25, 2024, and the remaining three quarters vest in equal monthly installments through January 25, 2027, conditioned on continued service to the company.
AI-generated analysis. How Rhea-AI works. Not financial advice.
