Steven Nichtberger, President and CEO of Cabaletta Bio, Inc. ($CABA), made one open market purchase of shares in the last year, totaling just over $100,000. His most recent buy was on January 21, 2026. This ranks him 2,177th out of 4,983 insiders by purchase value, well below the average of $1.46 million across 3.29 transactions. He reported no open market sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 2, 2026 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 674000 | $0.00 | 674,000.0000 | 96,265,204 | 9999.99% | 0.70% |
| Jan. 21, 2026 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | P | Common Stock | 45000 | $2.24 | 1,394,483.0000 | 96,265,204 | 3.33% | 0.05% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | D | Stock Option (Right to Buy) | 300000 | $0.00 | 0.0000 | 50,743,101 | 100.00% | 0.59% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 300000 | $0.00 | 300,000.0000 | 50,743,101 | 9999.99% | 0.59% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | D | Stock Option (Right to Buy) | 333500 | $0.00 | 0.0000 | 50,743,101 | 100.00% | 0.66% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 333500 | $0.00 | 333,500.0000 | 50,743,101 | 9999.99% | 0.66% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | D | Stock Option (Right to Buy) | 380000 | $0.00 | 0.0000 | 50,743,101 | 100.00% | 0.75% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 380000 | $0.00 | 380,000.0000 | 50,743,101 | 9999.99% | 0.75% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | D | Stock Option (Right to Buy) | 99714 | $0.00 | 0.0000 | 50,743,101 | 100.00% | 0.20% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 411600 | $0.00 | 411,600.0000 | 50,743,101 | 9999.99% | 0.81% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | D | Stock Option (Right to Buy) | 353000 | $0.00 | 0.0000 | 50,743,101 | 100.00% | 0.70% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 353000 | $0.00 | 353,000.0000 | 50,743,101 | 9999.99% | 0.70% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | D | Stock Option (Right to Buy) | 411600 | $0.00 | 0.0000 | 50,743,101 | 100.00% | 0.81% |
| May 19, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 99714 | $0.00 | 99,714.0000 | 50,743,101 | 9999.99% | 0.20% |
| March 3, 2025 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 450000 | $0.00 | 450,000.0000 | 0 | 9999.99% | 0.00% |
| March 1, 2024 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 353000 | $0.00 | 353,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 18, 2023 | Cabaletta Bio, Inc. | $CABA | Nichtberger Steven | President & CEO | A | Stock Option (Right to Buy) | 411600 | $0.00 | 411,600.0000 | 0 | 9999.99% | 0.00% |