Septerna (SEPN) SVP exercises options and sells 3,334 shares under plan
Rhea-AI Filing Summary
Septerna, Inc. reported that Daniel D. Long, SVP, Drug Discovery, exercised employee stock options covering 3,334 shares of common stock at an exercise price of $2.7600 per share on August 3, 2026, converting derivative awards into common shares.
On the same date he sold 3,334 shares of common stock in two blocks: 1,000 shares at a weighted average price of $33.9756 per share within a $33.39–$34.32 range, and 2,334 shares at a weighted average price of $34.6805 per share within a $34.43–$35.04 range. These sales were effected pursuant to a Rule 10b5-1 sales plan adopted on March 20, 2026. Related options vest in 48 equal monthly installments starting August 1, 2023 and March 1, 2024, subject to continued service.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and Sale: 3,334 shares ($106K approx. pre-tax spread)
Exercise and Sale
6 txns
Insider
Long Daniel D.
Role
SVP, Drug Discovery
Sold
3,334 shs ($115K)
Approx. gross sale proceeds
$115K
Approx. exercise cost
$9K
Approx. pre-tax spread
$106K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F4 | 1,816 | $0.00 | $0.00 |
| Exercise | Stock Option (Right to Buy) F5 | 1,518 | $0.00 | $0.00 |
| Exercise | Common Stock | 1,816 | $2.76 | $5K |
| Exercise | Common Stock | 1,518 | $2.76 | $4K |
| Sale | Common Stock F1, F2 | 1,000 | $33.9756 | $34K |
| Sale | Common Stock F1, F3 | 2,334 | $34.6805 | $81K |
Holdings After Transaction:
Stock Option (Right to Buy) — 17,645 shares (Direct);
Common Stock — 96,412 shares (Direct)
Footnotes (5)
- F1. This transaction was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on March 20, 2026.
- F2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $33.39 to $34.32. 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $34.43 to $35.04. 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.
- F4. 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, 2023, subject to the Reporting Person's continuous service to the Issuer on each such date.
- F5. 1/48th of the shares subject to such option shall vest and become exercisable in substantially equal monthly installments on each monthly anniversary of March 1, 2024, subject to the Reporting Person's continuous service to the Issuer on each such date.
Key Figures
Options exercised: 3,334 shares
Exercise price: $2.7600 per share
Shares sold: 3,334 shares
+3 more
6 metrics
Options exercised
3,334 shares
Total underlying common stock from option exercises on August 3, 2026
Exercise price
$2.7600 per share
Exercise price for stock options converted into common stock
Shares sold
3,334 shares
Total Septerna common shares sold on August 3, 2026
Weighted avg sale price (1,000 shares)
$33.9756 per share
Weighted average price for 1,000 shares sold within a $33.39–$34.32 range
Weighted avg sale price (2,334 shares)
$34.6805 per share
Weighted average price for 2,334 shares sold within a $34.43–$35.04 range
10b5-1 plan adoption date
March 20, 2026
Adoption date of Rule 10b5-1 sales plan governing the reported sales
Key Terms
Rule 10b5-1 sales plan, weighted average price, Stock Option (Right to Buy), vest and become exercisable
4 terms
Rule 10b5-1 sales plan regulatory
"This transaction was effected pursuant to a Rule 10b5-1 sales plan"
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) reported for options"
vest and become exercisable financial
"1/48th of the shares subject to such option shall vest and become exercisable"
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What insider stock activity did Septerna (SEPN) report for Daniel D. Long?
Daniel D. Long exercised options for 3,334 shares of Septerna common stock at $2.7600 per share and sold 3,334 shares on August 3, 2026. The sales occurred in two weighted-average priced blocks around $34 per share.
What options did Daniel D. Long exercise in Septerna (SEPN) stock?
He exercised stock options covering 3,334 shares of Septerna common stock at an exercise price of $2.7600 per share. The options had expirations in 2033 and 2034 and were part of equity awards vesting monthly over 48 months.
How do Daniel D. Long’s Septerna (SEPN) options vest?
The option series referenced vest so that 1/48th of the shares become exercisable each month. One grant vests monthly from August 1, 2023, and another from March 1, 2024, in each case contingent on his continuous service with Septerna.