Richard William Scalzo

Companies

• CRESCENT BIOPHARMA, INC.Chief financial officer Jun 23, 2025 to now¹
• Dyne Therapeutics, Inc.Officer Sep 16, 2020 to now²
• Kaleido Biosciences, Inc.Principal Accounting Officer Oct 15, 2019 to Oct 15, 2019³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• DTDyne Therapeutics, Inc. DYN122,330 shares⁴$1.8M at $14.99Mar 11, 2025
• CBCRESCENT BIOPHARMA, INC. CBIO19,730 shares⁵$246.0K at $12.47Sep 16, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 16, 2026Sold 568 shares at $17.90 of CRESCENT BIOPHARMA, INC.⁵
• Jun 22, 2026Sold 1,112 shares at $17.99 of CRESCENT BIOPHARMA, INC.⁶
• Dec 15, 2025Granted 5,000 shares of CRESCENT BIOPHARMA, INC.⁷
• Dec 15, 2025Granted 14,422 shares of CRESCENT BIOPHARMA, INC.⁷
• Mar 11, 2025Sold 1,343 shares at $11.38 of Dyne Therapeutics, Inc.⁴
• Mar 5, 2025Sold 917 shares at $11.83 of Dyne Therapeutics, Inc.⁸
• Feb 18, 2025Sold 2,488 shares at $13.95 of Dyne Therapeutics, Inc.⁹
• Dec 11, 2024Sold 1,455 shares at $28.12 of Dyne Therapeutics, Inc.¹⁰
• Dec 4, 2024Granted 32,700 shares of Dyne Therapeutics, Inc.¹¹
• Nov 18, 2024Sold 2,735 shares at $28.20 of Dyne Therapeutics, Inc.¹²
• Sep 18, 2024Sold 1,390 shares at $34.55 of Dyne Therapeutics, Inc.¹³
• Sep 11, 2024Sold 1,468 shares at $31.89 of Dyne Therapeutics, Inc.¹⁴
• Sep 6, 2024Sold 1,700 shares at $32.63 of Dyne Therapeutics, Inc.¹⁵
• Sep 6, 2024Sold 124,374 shares at $32.14 of Dyne Therapeutics, Inc.¹⁵
• Sep 6, 2024Exercised options 6,552 shares at $10.88 of Dyne Therapeutics, Inc.¹⁵
• Sep 6, 2024Exercised options 18,750 shares at $10.72 of Dyne Therapeutics, Inc.¹⁵
• Sep 6, 2024Exercised options 29,792 shares at $8.58 of Dyne Therapeutics, Inc.¹⁵
• Sep 6, 2024Exercised options 16,696 shares at $13.12 of Dyne Therapeutics, Inc.¹⁵
• Sep 6, 2024Exercised options 34,833 shares at $19.00 of Dyne Therapeutics, Inc.¹⁵
• Sep 6, 2024Exercised options 3,353 shares at $5.54 of Dyne Therapeutics, Inc.¹⁵
• Sep 6, 2024Exercised options 6,502 shares at $5.54 of Dyne Therapeutics, Inc.¹⁵
• Aug 19, 2024Sold 310 shares at $46.00 of Dyne Therapeutics, Inc.¹⁶
• Aug 19, 2024Sold 2,442 shares at $45.01 of Dyne Therapeutics, Inc.¹⁶
• Jun 11, 2024Sold 1,331 shares at $31.34 of Dyne Therapeutics, Inc.¹⁷
• Jun 10, 2024Sold 1,590 shares at $30.23 of Dyne Therapeutics, Inc.¹⁷