Septerna (SEPN) Chief People Officer sells 6,250 shares after option exercise
Rhea-AI Filing Summary
Septerna, Inc. Chief People Officer Samira Shaikhly reported an exercise-and-sale transaction in company stock. On June 12, 2026, she exercised options to acquire 6,250 shares of common stock at $11.70 per share, then sold 6,250 shares in an open-market transaction at a weighted average price of $35.0759 per share, with individual sale prices ranging from $35.00 to $35.19. These trades were executed under a pre-arranged Rule 10b5-1 sales plan. Following the transactions, she directly holds 793 shares of common stock and 23,750 stock options that remain outstanding and are scheduled to expire on August 6, 2035, continuing to give her equity exposure to Septerna’s future performance.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and Sale: 6,250 shares ($146K approx. pre-tax spread)
Exercise and Sale
3 txns
Insider
Shaikhly Samira
Role
Chief People Officer
Sold
6,250 shs ($219K)
Approx. gross sale proceeds
$219K
Approx. exercise cost
$73K
Approx. pre-tax spread
$146K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) | 6,250 | $0.00 | $0.00 |
| Exercise | Common Stock | 6,250 | $11.70 | $73K |
| Sale | Common Stock | 6,250 | $35.0759 | $219K |
Holdings After Transaction:
Stock Option (Right to Buy) — 23,750 shares (Direct);
Common Stock — 793 shares (Direct)
Footnotes (3)
- F1. This transaction was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on October 31, 2025.
- F2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $35.00 to $35.19. 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. 1/48th of the shares subject to such option shall vest and become exercisable in substantially equal monthly installments on each monthly anniversary of August 1, 2025, subject to the Reporting Person's continuous service to the Issuer on each such date.
Key Figures
Shares sold: 6,250 shares
Weighted average sale price: $35.0759 per share
Options exercised: 6,250 shares
+5 more
8 metrics
Shares sold
6,250 shares
Open-market sale on June 12, 2026
Weighted average sale price
$35.0759 per share
Sale prices ranged from $35.00 to $35.19
Options exercised
6,250 shares
Stock options exercised at $11.70 per share
Exercise price
$11.70 per share
Stock Option (Right to Buy) for Septerna common stock
Shares held after transaction
793 shares
Direct common stock holding after June 12, 2026 trades
Remaining options
23,750 options
Stock options outstanding after reported exercise
Option expiration
August 6, 2035
Expiration date of the stock option grant
Vesting schedule
1/48th monthly
Options vest on each monthly anniversary of August 1, 2025
Key Terms
Rule 10b5-1 sales plan, weighted average price, Stock Option (Right to Buy), Exercise or conversion of derivative security, +1 more
5 terms
Rule 10b5-1 sales plan regulatory
"This transaction was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on October 31, 2025."
weighted average price financial
"The price reported in Column 4 is a weighted average price."
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"
open-market sale financial
"transaction_action: open-market sale"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What insider transaction did Septerna (SEPN) disclose for Samira Shaikhly?
Septerna reported that Chief People Officer Samira Shaikhly exercised 6,250 stock options and sold 6,250 common shares. The sale was an open-market transaction executed under a Rule 10b5-1 plan, indicating the trades were pre-scheduled rather than discretionary.
What stock options did Samira Shaikhly exercise in Septerna (SEPN)?
She exercised stock options covering 6,250 Septerna common shares at an exercise price of $11.70 per share. These options are part of a larger grant that vests in monthly installments, reflecting ongoing equity-based compensation tied to continued service.
What is the status of Samira Shaikhly’s remaining Septerna (SEPN) stock options?
Following the June 12, 2026 activity, she holds 23,750 Septerna stock options. These options relate to a grant scheduled to vest monthly starting August 1, 2025, and are set to expire on August 6, 2035 if not fully exercised earlier.
Was Samira Shaikhly’s Septerna (SEPN) stock sale under a Rule 10b5-1 plan?
Yes. The Form 4 notes the sale was executed under a Rule 10b5-1 sales plan adopted on October 31, 2025. Such pre-arranged plans allow insiders to systematically sell shares according to preset instructions, reducing timing concerns.