REGENXBIO (RGNX) CEO logs ESPP share acquisitions and tax-withholding stock disposition
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
REGENXBIO Inc. Chief Executive Officer Simpson Curran reported routine equity compensation activity in company stock. On December 31, 2025, Curran acquired 951 shares of common stock at $6.9955 per share through the Employee Stock Purchase Plan (ESPP) for the July 1–December 31, 2025 purchase period, exempt under Rule 16b-3(c).
On June 30, 2026, Curran acquired an additional 1,453 shares at $10.18 per share via the ESPP for the January 1–June 30, 2026 purchase period. In line with the ESPP, these shares were bought at 85% of the relevant closing prices. On July 1, 2026, 6,818 shares were withheld at $13.09 per share to cover taxes upon vesting of restricted stock units granted on July 1, 2024, a non-market, tax-withholding disposition. After these transactions, Curran directly owned 338,053 shares of REGENXBIO common stock.
Positive
- None.
Negative
- None.
Insider Trade Summary
3 transactions reported
Mixed
3 txns
Insider
Simpson Curran
Role
Chief Executive Officer
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Tax Withholding | Common Stock | 6,818 | $13.09 | $89K |
| Grant/Award | Common Stock | 1,453 | $10.18 | $15K |
| Grant/Award | Common Stock | 951 | $6.9955 | $7K |
Holdings After Transaction:
Common Stock — 338,053 shares (Direct, null)
Footnotes (1)
- The reporting person is voluntarily reporting the acquisition of shares of the Issuer's common stock pursuant to the REGENXBIO Inc. Employee Stock Purchase Plan ("ESPP") for the ESPP purchase period of July 1, 2025 through December 31, 2025. This transaction is exempt under Rule 16b-3(c). In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the Issuer's common stock on July 1, 2025. The reporting person is voluntarily reporting the acquisition of shares of the Issuer's common stock pursuant to the ESPP for the ESPP purchase period of January 1, 2026 through June 30, 2026. This transaction is exempt under Rule 16b-3(c). In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the Issuer's common stock on June 30, 2026. Represents shares of common stock withheld to pay taxes upon the vesting of restricted stock units originally granted to the reporting person on July 1, 2024. The number of shares withheld was determined based on the closing price of the issuer's common stock on July 1, 2026.
Key Figures
ESPP purchase 2025: 951 shares at $6.9955/share
ESPP purchase 2026: 1,453 shares at $10.18/share
Tax withholding shares: 6,818 shares at $13.09/share
+3 more
6 metrics
ESPP purchase 2025
951 shares at $6.9955/share
Common Stock acquired via ESPP on December 31, 2025
ESPP purchase 2026
1,453 shares at $10.18/share
Common Stock acquired via ESPP on June 30, 2026
Tax withholding shares
6,818 shares at $13.09/share
Shares withheld for RSU tax on July 1, 2026
Post-transaction holdings
338,053 shares
Common Stock directly owned after July 1, 2026 transaction
ESPP discount basis 2025
85% of closing price
ESPP purchase based on July 1, 2025 closing price
ESPP discount basis 2026
85% of closing price
ESPP purchase based on June 30, 2026 closing price
Key Terms
Employee Stock Purchase Plan, ESPP, Rule 16b-3(c), restricted stock units, +1 more
5 terms
Employee Stock Purchase Plan financial
"acquisition of shares of the Issuer's common stock pursuant to the REGENXBIO Inc. 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.
ESPP financial
"for the ESPP purchase period of July 1, 2025 through December 31, 2025"
An Employee Stock Purchase Plan (ESPP) is a company program that lets employees buy the company’s shares at a reduced price, usually by setting aside a small portion of their pay over time. It matters to investors because it encourages employees to own part of the business—like giving staff a discounted membership— which can boost commitment and performance, while also potentially increasing the number of shares available and affecting shareholder value.
Rule 16b-3(c) regulatory
"This transaction is exempt under Rule 16b-3(c)."
An SEC rule that lets corporate insiders avoid automatic "short‑swing" profit recovery when they buy or sell their company’s stock under a pre‑approved, written plan that meets specific conditions. For investors, it matters because it clarifies when insider trades are treated as routine, reducing legal uncertainty and helping distinguish trades made for ordinary compensation or pre‑planned reasons from those that might signal opportunistic or timely insider advantage.
restricted stock units financial
"upon the vesting of restricted stock units originally granted to the reporting person"
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.
vesting financial
"to pay taxes upon the vesting of restricted stock units originally granted"
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
What did REGENXBIO (RGNX) CEO Simpson Curran report in this Form 4?
Simpson Curran reported routine equity compensation activity, including ESPP share acquisitions and tax withholding. He acquired shares through the Employee Stock Purchase Plan and had shares withheld to cover taxes on vested restricted stock units, ending with 338,053 directly held common shares.
At what prices did the REGENXBIO (RGNX) CEO’s ESPP transactions occur?
The ESPP acquisitions were reported at $6.9955 per share for 951 shares on December 31, 2025 and $10.18 per share for 1,453 shares on June 30, 2026. Both purchases followed plan terms using 85% of specified closing stock prices.
Are the REGENXBIO (RGNX) CEO’s reported transactions open-market buys or routine plan activity?
The reported transactions are routine plan-related activity, not open-market trading. Shares were acquired under the Employee Stock Purchase Plan and shares were withheld to satisfy tax obligations on vesting restricted stock units, all exempt under Rule 16b-3(c).