Rubin Marc 4
4 · CURIS INC · Filed Mar 23, 2026
Research Summary
AI-generated summary of this filing
Curis (CRIS) Director Marc Rubin Receives 26,667 Shares via Conversion
What Happened
- Marc Rubin, a director of Curis, Inc. (CRIS), acquired 26,667 shares of common stock on March 20, 2026 through the automatic conversion of Series B Convertible Non‑Redeemable Preferred Stock into common shares. The conversion occurred at no additional consideration under the company's Certificate of Designations.
- The Form 4 also reports a small, separate disposition of 20 shares on the same date labeled as a derivative conversion; the filing does not explain that line item.
Key Details
- Transaction date: March 20, 2026; Form 4 filed March 23, 2026 (filed within the normal two-business‑day Form 4 deadline).
- Acquired: 26,667 common shares via conversion (no cash paid at conversion).
- Disposed: 20 common shares (derivative conversion line; reason not specified).
- Original purchase: The footnote states the Reporting Person bought each “Security” (one Series B Preferred plus associated warrants) for $1,000. Each Series B preferred converts into 1,333.33 common shares, implying Rubin purchased 20 Securities (20 × 1,333.33 ≈ 26,667 shares) for $20,000 total — an implied cost of about $0.75 per common share (the conversion itself required no additional payment).
- Shares owned after the transaction: not specified in the filing.
- Notable terms: The automatic conversion was subject to the Certificate of Designations and applicable Beneficial Ownership Limitations.
Context
- This was a conversion of preferred shares into common stock (a non‑cash transaction), not an open‑market purchase or sale. Conversions like this increase an insider’s common‑stock holdings but do not necessarily signal a buy/sell decision by the insider.
- The filing includes warrants that accompanied the preferred shares, but the reported Form 4 entries relate to the preferred‑to‑common conversion; no exercise of warrants or open‑market trades are shown.
Insider Transaction Report
Form 4
CURIS INCCRIS
Rubin Marc
Director
Transactions
- Conversion
Common Stock
[F1]2026-03-20+26,667→ 28,108 total - Conversion
Series B Convertible Preferred Stock
[F1]2026-03-20−20→ 0 total→ Common Stock (26,667 underlying)
Footnotes (1)
- [F1]Each share of Series B Convertible Non-Redeemable Preferred Stock ("Series B Preferred Stock") automatically converted into 1,333.33 shares of Common Stock, for no additional consideration, at 5 p. m. Eastern Time on March 20, 2026, subject to the terms of the Certificate of Designations, Preferences and Rights of Series B Convertible Non-Redeemable Preferred Stock of Curis, Inc. (the "Certificate of Designations") and subject to the applicable Beneficial Ownership Limitations (as defined in the Certificate of Designations). Each share of Series B Preferred Stock was sold together with a Series A Warrant to purchase 1,333.33 shares of Common Stock, a Series B Warrant to purchase 1,333.33 shares of Common Stock and a Series C Warrant to purchase 1,333.33 shares of Common Stock (collectively, a "Security"). The Securities were sold at a purchase price of $1,000.00 per Security to the Reporting Person.
Signature
/s/ Diantha Duvall, Attorney-in-fact|2026-03-23