CABA
Cabaletta Bio Inc
NASDAQ: CABA · HEALTHCARE · BIOTECHNOLOGY
$1.52
+4.47% today
Updated 2026-10-28
Market cap
$250.93M
P/E ratio
—
P/S ratio
—
EPS (TTM)
$-1.59
Dividend yield
—
52W range
$1 – $4
Volume
5.5M
Cabaletta Bio Inc (CABA) Insider transactions
Net insider activity
Net buying (196,953 shares)
Buy transactions
50
Sell transactions
50
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-09 | TOMASELLO, SHAWN | Director | Buy | 22,000 | — | — |
| 2026-06-09 | SIMON, MARK | Director | Buy | 22,000 | — | — |
| 2026-06-09 | HENRIQUES, RICHARD C JR | Director | Buy | 22,000 | — | — |
| 2026-06-09 | BRUN, SCOTT C. | Director | Buy | 22,000 | — | — |
| 2026-06-09 | BOLLARD, CATHERINE | Director | Buy | 22,000 | — | — |
| 2026-03-02 | NICHTBERGER, STEVEN | Director, President & CEO | Buy | 674,000 | — | — |
| 2026-03-02 | MARDA, ANUP | Chief Financial Officer | Buy | 225,000 | — | — |
| 2026-03-02 | GERARD, MICHAEL | General Counsel | Buy | 175,000 | — | — |
| 2026-03-02 | DAS, ARUN | Chief Business Officer | Buy | 175,000 | — | — |
| 2026-03-02 | CHANG, DAVID J. | Chief Medical Officer | Buy | 225,000 | — | — |
| 2026-03-02 | BINDER, GWENDOLYN | President, Science & Tech. | Buy | 225,000 | — | — |
| 2026-01-21 | TOMASELLO, SHAWN | Director | Buy | 22,725 | $2.21 | $50322.24 |
| 2026-01-21 | SIMON, MARK | Director | Buy | 11,061 | $2.28 | $25261.11 |
| 2026-01-21 | NICHTBERGER, STEVEN | Director, President & CEO | Buy | 45,000 | $2.24 | $100777.50 |
| 2026-01-21 | GERARD, MICHAEL | General Counsel | Buy | 6,600 | $2.27 | $14979.36 |
| 2026-01-21 | GAVEL, STEVE | Chief Commercial Officer | Buy | 22,170 | $2.27 | $50215.05 |
| 2026-01-21 | CHANG, DAVID J. | Chief Medical Officer | Buy | 8,800 | $2.26 | $19888.00 |
| 2026-01-21 | BOLLARD, CATHERINE | Director | Buy | 4,405 | $2.27 | $9982.17 |
| 2026-01-21 | BINDER, GWENDOLYN | President, Science & Tech. | Buy | 11,312 | $2.19 | $24763.10 |
| 2025-10-13 | GAVEL, STEVE | CHIEF COMMERCIAL OFFICER | Buy | 275,000 | — | — |
| 2025-06-09 | TOMASELLO, SHAWN | Director | Buy | 22,000 | — | — |
| 2025-06-09 | SIMON, MARK | Director | Buy | 22,000 | — | — |
| 2025-06-09 | HENRIQUES, RICHARD C JR | Director | Buy | 22,000 | — | — |
| 2025-06-09 | BRUN, SCOTT C. | Director | Buy | 22,000 | — | — |
| 2025-06-09 | BOLLARD, CATHERINE | Director | Buy | 22,000 | — | — |
| 2025-05-19 | TOMASELLO, SHAWN | Director | Sale | 44,000 | — | — |
| 2025-05-19 | TOMASELLO, SHAWN | Director | Sale | 22,000 | — | — |
| 2025-05-19 | SIMON, MARK | Director | Sale | 22,000 | — | — |
| 2025-05-19 | SIMON, MARK | Director | Sale | 18,460 | — | — |
| 2025-05-19 | NICHTBERGER, STEVEN | Director, President & CEO | Sale | 411,600 | — | — |
| 2025-05-19 | NICHTBERGER, STEVEN | Director, President & CEO | Sale | 380,000 | — | — |
| 2025-05-19 | NICHTBERGER, STEVEN | Director, President & CEO | Sale | 353,000 | — | — |
| 2025-05-19 | NICHTBERGER, STEVEN | Director, President & CEO | Sale | 333,500 | — | — |
| 2025-05-19 | NICHTBERGER, STEVEN | Director, President & CEO | Sale | 300,000 | — | — |
| 2025-05-19 | NICHTBERGER, STEVEN | Director, President & CEO | Sale | 99,714 | — | — |
| 2025-05-19 | MARDA, ANUP | Chief Financial Officer | Buy | 150,000 | — | — |
| 2025-05-19 | MARDA, ANUP | Chief Financial Officer | Sale | 139,282 | — | — |
| 2025-05-19 | MARDA, ANUP | Chief Financial Officer | Sale | 135,000 | — | — |
| 2025-05-19 | MARDA, ANUP | Chief Financial Officer | Sale | 130,000 | — | — |
| 2025-05-19 | MARDA, ANUP | Chief Financial Officer | Sale | 100,000 | — | — |
| 2025-05-19 | MARDA, ANUP | Chief Financial Officer | Sale | 66,463 | — | — |
| 2025-05-19 | MARDA, ANUP | Chief Financial Officer | Sale | 24,711 | — | — |
| 2025-05-19 | HENRIQUES, RICHARD C JR | Director | Sale | 46,428 | — | — |
| 2025-05-19 | HENRIQUES, RICHARD C JR | Director | Sale | 22,000 | — | — |
| 2025-05-19 | GERARD, MICHAEL | General Counsel | Sale | 112,500 | — | — |
| 2025-05-19 | GERARD, MICHAEL | General Counsel | Sale | 100,000 | — | — |
| 2025-05-19 | GERARD, MICHAEL | General Counsel | Sale | 75,000 | — | — |
| 2025-05-19 | DAS, ARUN | Chief Business Officer | Sale | 150,000 | — | — |
| 2025-05-19 | DAS, ARUN | Chief Business Officer | Sale | 100,000 | — | — |
| 2025-05-19 | DAS, ARUN | Chief Business Officer | Buy | 35,000 | — | — |
| 2025-05-19 | DAS, ARUN | Chief Business Officer | Buy | 18,416 | — | — |
| 2025-05-19 | CHANG, DAVID J. | Chief Medical Officer | Sale | 185,709 | — | — |
| 2025-05-19 | CHANG, DAVID J. | Chief Medical Officer | Sale | 150,000 | — | — |
| 2025-05-19 | CHANG, DAVID J. | Chief Medical Officer | Sale | 135,000 | — | — |
| 2025-05-19 | CHANG, DAVID J. | Chief Medical Officer | Sale | 130,000 | — | — |
| 2025-05-19 | CHANG, DAVID J. | Chief Medical Officer | Sale | 113,500 | — | — |
| 2025-05-19 | CHANG, DAVID J. | Chief Medical Officer | Sale | 48,836 | — | — |
| 2025-05-19 | CHANG, DAVID J. | Chief Medical Officer | Sale | 38,238 | — | — |
| 2025-05-19 | BRUN, SCOTT C. | Director | Sale | 44,000 | — | — |
| 2025-05-19 | BRUN, SCOTT C. | Director | Sale | 22,000 | — | — |
| 2025-05-19 | BOLLARD, CATHERINE | Director | Sale | 46,428 | — | — |
| 2025-05-19 | BOLLARD, CATHERINE | Director | Sale | 22,000 | — | — |
| 2025-05-19 | BINDER, GWENDOLYN | President, Science & Tech. | Buy | 176,000 | — | — |
| 2025-05-19 | BINDER, GWENDOLYN | President, Science & Tech. | Sale | 160,000 | — | — |
| 2025-05-19 | BINDER, GWENDOLYN | President, Science & Tech. | Sale | 130,000 | — | — |
| 2025-05-19 | BINDER, GWENDOLYN | President, Science & Tech. | Sale | 125,000 | — | — |
| 2025-05-19 | BINDER, GWENDOLYN | President, Science & Tech. | Sale | 66,667 | — | — |
| 2025-05-19 | BINDER, GWENDOLYN | President, Science & Tech. | Sale | 29,908 | — | — |
| 2025-03-03 | NICHTBERGER, STEVEN | Director, President & CEO | Buy | 450,000 | — | — |
| 2025-03-03 | MARDA, ANUP | Chief Financial Officer | Buy | 145,000 | — | — |
| 2025-03-03 | GERARD, MICHAEL | General Counsel | Buy | 115,000 | — | — |
| 2025-03-03 | DAS, ARUN | Chief Business Officer | Buy | 115,000 | — | — |
| 2025-03-03 | CHANG, DAVID J. | Chief Medical Officer | Buy | 145,000 | — | — |
| 2025-03-03 | BINDER, GWENDOLYN | President, Science & Tech. | Buy | 145,000 | — | — |
| 2024-06-03 | TOMASELLO, SHAWN | Director | Buy | 22,000 | — | — |
| 2024-06-03 | SIMON, MARK | Director | Buy | 22,000 | — | — |
| 2024-06-03 | HENRIQUES, RICHARD C JR | Director | Buy | 22,000 | — | — |
| 2024-06-03 | BRUN, SCOTT C. | Director | Buy | 22,000 | — | — |
| 2024-06-03 | BOLLARD, CATHERINE | Director | Buy | 22,000 | — | — |
| 2024-03-01 | NICHTBERGER, STEVEN | Director, President & CEO | Buy | 353,000 | — | — |
| 2024-03-01 | MARDA, ANUP | Chief Financial Officer | Buy | 130,000 | — | — |
| 2024-03-01 | GERARD, MICHAEL | General Counsel | Buy | 100,000 | — | — |
| 2024-03-01 | DAS, ARUN | Chief Business Officer | Buy | 100,000 | — | — |
| 2024-03-01 | CHANG, DAVID J. | Chief Medical Officer | Buy | 130,000 | — | — |
| 2024-03-01 | BINDER, GWENDOLYN | See Remarks | Buy | 130,000 | — | — |
| 2024-01-19 | BINDER, GWENDOLYN | See Remarks | Sale | 11,000 | — | — |
| 2024-01-19 | BINDER, GWENDOLYN | See Remarks | Buy | 11,000 | $1.01 | $11110.00 |
| 2024-01-19 | BINDER, GWENDOLYN | See Remarks | Sale | 10,300 | $19.54 | $201210.50 |
| 2024-01-19 | BINDER, GWENDOLYN | See Remarks | Sale | 700 | $20.33 | $14228.62 |
| 2023-12-19 | BINDER, GWENDOLYN | See Remarks | Sale | 11,000 | — | — |
| 2023-12-19 | BINDER, GWENDOLYN | See Remarks | Buy | 11,000 | $1.01 | $11110.00 |
| 2023-12-19 | BINDER, GWENDOLYN | See Remarks | Sale | 7,868 | $21.76 | $171195.88 |
| 2023-12-19 | BINDER, GWENDOLYN | See Remarks | Sale | 3,132 | $22.22 | $69593.35 |
| 2023-11-20 | BINDER, GWENDOLYN | See Remarks | Sale | 11,000 | — | — |
| 2023-11-20 | BINDER, GWENDOLYN | See Remarks | Buy | 11,000 | $1.01 | $11110.00 |
| 2023-11-20 | BINDER, GWENDOLYN | See Remarks | Sale | 7,458 | $18.02 | $134405.09 |
| 2023-11-20 | BINDER, GWENDOLYN | See Remarks | Sale | 3,542 | $17.39 | $61608.49 |
| 2023-10-19 | BINDER, GWENDOLYN | See Remarks | Sale | 11,000 | — | — |
| 2023-10-19 | BINDER, GWENDOLYN | See Remarks | Buy | 11,000 | $1.01 | $11110.00 |
| 2023-10-19 | BINDER, GWENDOLYN | See Remarks | Sale | 10,592 | $13.32 | $141096.03 |
Frequently asked questions
Are CABA insiders buying or selling?
Over the transactions on record, CABA insiders have been net sellers, with about $793337.96 in stock sold across 50 sales, against 12 open-market purchases.
Does insider selling at CABA mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which CABA insiders are selling the most?
Recent selling is concentrated in a few names. BINDER, GWENDOLYN accounts for the largest share on record, with about $793337.96 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.