Scalzo Richard William has filed 71 insider transactions across 2 companies since March 2023.
Most recent transaction: a grant/award of 57688 shares of CRESCENT BIOPHARMA, INC. ($CBIO) on December 15, 2025.
Activity breakdown: 0 open-market purchases and 36 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 15, 2025 | CRESCENT BIOPHARMA, INC. | $CBIO | Scalzo Richard William | Chief Financial Officer | A | Stock Option (Right to Buy) | 57688 | $0.00 | 57,688.0000 | 13,892,516 | 9999.99% | 0.42% |
| Dec. 15, 2025 | CRESCENT BIOPHARMA, INC. | $CBIO | Scalzo Richard William | Chief Financial Officer | A | Ordinary Shares | 14422 | $0.00 | 14,422.0000 | 13,892,516 | 9999.99% | 0.10% |
| Dec. 15, 2025 | CRESCENT BIOPHARMA, INC. | $CBIO | Scalzo Richard William | Chief Financial Officer | A | Ordinary Shares | 5000 | $0.00 | 19,422.0000 | 13,892,516 | 34.67% | 0.04% |
| March 11, 2025 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1343 | $11.38 | 122,330.0000 | 113,121,357 | 1.09% | 0.00% |
| March 5, 2025 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 917 | $11.83 | 123,673.0000 | 113,121,357 | 0.74% | 0.00% |
| Feb. 18, 2025 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 2488 | $13.95 | 124,590.0000 | 0 | 1.96% | 0.00% |
| Dec. 11, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1455 | $28.12 | 127,078.0000 | 0 | 1.13% | 0.00% |
| Dec. 4, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | A | Common Stock | 32700 | $0.00 | 128,533.0000 | 0 | 34.12% | 0.00% |
| Dec. 4, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | A | Stock option (right to buy) | 52300 | $0.00 | 52,300.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 2735 | $28.20 | 95,833.0000 | 0 | 2.77% | 0.00% |
| Sept. 18, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1390 | $34.55 | 98,568.0000 | 0 | 1.39% | 0.00% |
| Sept. 11, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1468 | $31.89 | 99,958.0000 | 0 | 1.45% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 16696 | $13.12 | 172,406.0000 | 0 | 10.72% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 29792 | $8.58 | 202,198.0000 | 0 | 17.28% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 18750 | $10.72 | 220,948.0000 | 0 | 9.27% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 6552 | $10.88 | 227,500.0000 | 0 | 2.97% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 124374 | $32.14 | 103,126.0000 | 0 | 54.67% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1700 | $32.63 | 101,426.0000 | 0 | 1.65% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 6502 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 3353 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 34833 | $0.00 | 742.0000 | 0 | 97.91% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 6502 | $5.54 | 117,524.0000 | 0 | 5.86% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 29792 | $0.00 | 25,208.0000 | 0 | 54.17% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 18750 | $0.00 | 26,250.0000 | 0 | 41.67% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 6552 | $0.00 | 28,394.0000 | 0 | 18.75% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 16696 | $0.00 | 8,348.0000 | 0 | 66.67% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 3353 | $5.54 | 120,877.0000 | 0 | 2.85% | 0.00% |
| Sept. 6, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 34833 | $19.00 | 155,710.0000 | 0 | 28.82% | 0.00% |
| Aug. 19, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 310 | $46.00 | 111,022.0000 | 0 | 0.28% | 0.00% |
| Aug. 19, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 2442 | $45.01 | 111,332.0000 | 0 | 2.15% | 0.00% |
| June 11, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1331 | $31.34 | 113,774.0000 | 0 | 1.16% | 0.00% |
| June 10, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1590 | $30.23 | 115,105.0000 | 0 | 1.36% | 0.00% |
| May 16, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 2126 | $28.20 | 117,157.0000 | 0 | 1.78% | 0.00% |
| May 16, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 462 | $28.59 | 116,695.0000 | 0 | 0.39% | 0.00% |
| March 8, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 289 | $27.33 | 121,955.0000 | 0 | 0.24% | 0.00% |
| March 8, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 68919 | $5.54 | 190,874.0000 | 0 | 56.51% | 0.00% |
| March 8, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 17333 | $5.54 | 208,207.0000 | 0 | 9.08% | 0.00% |
| March 8, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 30755 | $25.31 | 177,452.0000 | 0 | 14.77% | 0.00% |
| March 8, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 55208 | $26.72 | 122,244.0000 | 0 | 31.11% | 0.00% |
| March 11, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1082 | $25.70 | 120,873.0000 | 0 | 0.89% | 0.00% |
| March 11, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 1590 | $24.99 | 119,283.0000 | 0 | 1.32% | 0.00% |
| March 8, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 68919 | $0.00 | 9,855.0000 | 0 | 87.49% | 0.00% |
| March 8, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 17333 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| March 7, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 2273 | $25.85 | 121,955.0000 | 0 | 1.83% | 0.00% |
| March 1, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 8747 | $28.22 | 124,792.0000 | 0 | 6.55% | 0.00% |
| March 1, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 564 | $28.65 | 124,228.0000 | 0 | 0.45% | 0.00% |
| Feb. 29, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 3429 | $0.00 | 9,311.0000 | 0 | 26.92% | 0.00% |
| March 1, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 9311 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| March 1, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 9311 | $1.03 | 133,539.0000 | 0 | 7.50% | 0.00% |
| Feb. 29, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 3429 | $27.50 | 124,228.0000 | 0 | 2.69% | 0.00% |
| Feb. 29, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 3429 | $1.03 | 127,657.0000 | 0 | 2.76% | 0.00% |
| Jan. 26, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 13000 | $0.00 | 12,740.0000 | 0 | 50.51% | 0.00% |
| Jan. 26, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 13000 | $24.34 | 124,228.0000 | 0 | 9.47% | 0.00% |
| Jan. 26, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 13000 | $1.03 | 137,228.0000 | 0 | 10.46% | 0.00% |
| Jan. 3, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Common Stock | 13000 | $1.03 | 137,228.0000 | 0 | 10.46% | 0.00% |
| Jan. 3, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | S | Common Stock | 13000 | $18.81 | 124,228.0000 | 0 | 9.47% | 0.00% |
| Jan. 3, 2024 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | SVP, Head of Finance & Admin. | M | Stock option (right to buy) | 13000 | $0.00 | 25,740.0000 | 0 | 33.56% | 0.00% |
| Dec. 14, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 2376 | $12.02 | 124,228.0000 | 0 | 1.88% | 0.00% |
| Dec. 11, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 1380 | $10.72 | 126,604.0000 | 0 | 1.08% | 0.00% |
| Dec. 6, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 1872 | $12.01 | 127,984.0000 | 0 | 1.44% | 0.00% |
| Dec. 4, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 681 | $12.01 | 129,856.0000 | 0 | 0.52% | 0.00% |
| Nov. 15, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | A | Common Stock | 89742 | $0.00 | 130,537.0000 | 0 | 219.98% | 0.00% |
| Nov. 15, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | A | Stock Option (right to buy) | 34946 | $0.00 | 34,946.0000 | 0 | 9999.99% | 0.00% |
| Sept. 18, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 1290 | $9.41 | 40,795.0000 | 0 | 3.07% | 0.00% |
| Sept. 12, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 1397 | $10.41 | 42,085.0000 | 0 | 3.21% | 0.00% |
| June 15, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 10000 | $12.03 | 43,482.0000 | 0 | 18.70% | 0.00% |
| June 13, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | M | Stock Option (right to buy) | 40000 | $0.00 | 38,740.0000 | 0 | 50.80% | 0.00% |
| June 13, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 40000 | $12.89 | 53,482.0000 | 0 | 42.79% | 0.00% |
| June 13, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | M | Common Stock | 40000 | $1.03 | 93,482.0000 | 0 | 74.79% | 0.00% |
| June 13, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 1390 | $12.43 | 53,482.0000 | 0 | 2.53% | 0.00% |
| March 14, 2023 | Dyne Therapeutics, Inc. | $DYN | Scalzo Richard William | See Remarks | S | Common Stock | 1311 | $13.33 | 54,872.0000 | 0 | 2.33% | 0.00% |