SI-BONE director exercises, sells 20K shares
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Form Type
4
Rhea-AI Filing Summary
SI-BONE, Inc. (SIBN) director Jeffrey W. Dunn reported exercising options for a total of 20,000 shares of common stock at an exercise price of $4.68 per share on September 1, 2026, and selling the same 20,000 shares at a weighted-average price of $18.908 per share pursuant to a Rule 10b5-1 trading plan. He also reports 81,073 shares held indirectly by The Jeffrey W. Dunn Living Trust and holdings that include 10,957 shares issuable upon settlement of restricted stock units.
Insider Trade Summary 10b5-1
Exercise and Sale: 20,000 shares ($285K approx. pre-tax spread)
Exercise and Sale
7 txns
Insider
DUNN JEFFREY W
Role
Director
Sold
20,000 shs ($378K)
Approx. gross sale proceeds
$378K
Approx. exercise cost
$94K
Approx. pre-tax spread
$285K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F5 | 1,367 | $0.00 | $0.00 |
| Exercise | Stock Option (Right to Buy) F5 | 18,633 | $0.00 | $0.00 |
| Exercise | Common Stock | 18,633 | $4.68 | $87K |
| Exercise | Common Stock | 1,367 | $4.68 | $6K |
| Sale | Common Stock F1, F2 | 18,633 | $18.908 | $352K |
| Sale | Common Stock F1, F2, F3 | 1,367 | $18.908 | $26K |
| holding | Common Stock F4 | -- | -- | -- |
Holdings After Transaction:
Stock Option (Right to Buy) — 86,260 contracts (Direct);
Common Stock — 16,057 shares (Direct);
Common Stock — 81,073 shares (Indirect, by Trust)
Footnotes (5)
- F1. The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan dated May 7th, 2025.
- F2. The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $18.6450 to $19.6449, inclusive. The Reporting Person undertakes to provide the Issuer, any securityholder 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 10,957 shares issuable on the settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
- F4. Shares held by The Jeffrey W. Dunn Living Trust Dated May 17, 2012.
- F5. The shares subject to the option vest in equal monthly installments over four years commencing on the vesting commencement date, subject to Reporting Person's continued service through each relevant vesting date.
Key Figures
Options exercised: 20,000 shares
Option exercise price: $4.68 per share
Shares sold: 20,000 shares
+4 more
7 metrics
Options exercised
20,000 shares
Stock options exercised on September 1, 2026
Option exercise price
$4.68 per share
Exercise price for the Stock Option (Right to Buy)
Shares sold
20,000 shares
Common stock sold on September 1, 2026
Weighted-average sale price
$18.908 per share
Weighted-average price for sales between $18.6450 and $19.6449
Indirect holdings by trust
81,073 shares
Common stock held by The Jeffrey W. Dunn Living Trust
RSU shares included
10,957 shares
Shares issuable upon settlement of restricted stock units
Option expiration date
March 1, 2027
Expiration date of the exercised stock options
Key Terms
Rule 10b5-1 trading plan, weighted-average price, restricted stock units, contingent right, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan"
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 in column 4 is a weighted-average price"
Weighted-average price is the average of multiple prices where each price is counted according to its size or importance—larger trades carry more weight than smaller ones, like averaging course grades by credit hours. It matters to investors because it gives a more realistic picture of the true price paid or received, helping assess trade execution, compare performance, calculate cost basis, and value positions more accurately than a simple average.
restricted stock units financial
"Includes 10,957 shares issuable on the 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.
contingent right financial
"Each restricted stock unit represents a contingent right to receive one share"
indirect ownership financial
"Shares held by The Jeffrey W. Dunn Living Trust Dated May 17, 2012"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transactions did SIBN director Jeffrey W. Dunn report on this Form 4?
He exercised options for 20,000 shares of SI-BONE common stock at $4.68 per share and sold 20,000 shares at a weighted-average price of $18.908 per share on September 1, 2026.
Were the SIBN stock sales by Jeffrey W. Dunn under a Rule 10b5-1 trading plan?
Yes. A footnote states the sale was effected pursuant to a Rule 10b5-1 trading plan dated May 7, 2025, indicating the transactions followed a pre-arranged trading plan.
What prices were involved in Jeffrey W. Dunn’s SIBN transactions?
The options had an exercise price of $4.68 per share. The 20,000 shares sold had a weighted-average sale price of $18.908 per share, with individual trades occurring between $18.6450 and $19.6449 per share.
Does Jeffrey W. Dunn hold SI-BONE restricted stock units (RSUs)?
Yes. A footnote indicates his reported holdings include 10,957 shares issuable upon settlement of restricted stock units, with each unit representing a contingent right to receive one share of common stock.
What is the vesting schedule of the SI-BONE stock options mentioned?
A footnote states the option shares vest in equal monthly installments over four years starting from the vesting commencement date, subject to Jeffrey W. Dunn’s continued service through each vesting date.
AI-generated analysis. How Rhea-AI works. Not financial advice.
