9 insiders reported 35 Form 4 transactions for Kalaris Therapeutics, Inc. (KLRS) over the past 18 months (most recent 2026-05-22). Recent activity: Samsara BioCapital, L.P. (10% Owner) Buy 244,300 shares, Samsara Opportunity Fund, L.P. (10% Owner) Buy 4,471 shares, Samsara BioCapital GP, LLC (10% Owner) Buy 244,300 shares, Samsara Opportunity Fund, L.P. (10% Owner) Buy 244,300 shares, Samsara Opportunity Fund GP, LLC (10% Owner) Buy 244,300 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-22 | Samsara BioCapital, L.P. | 10% Owner | Buy | 244,300 | $1.2M |
| 2026-05-22 | Samsara Opportunity Fund, L.P. | 10% Owner | Buy | 4,471 | $0 |
| 2026-05-22 | Samsara BioCapital GP, LLC | 10% Owner | Buy | 244,300 | $1.2M |
| 2026-05-22 | Samsara Opportunity Fund, L.P. | 10% Owner | Buy | 244,300 | $1.2M |
| 2026-05-22 | Samsara Opportunity Fund GP, LLC | 10% Owner | Buy | 244,300 | $1.2M |
| 2026-05-22 | Samsara BioCapital, L.P. | 10% Owner | Sell | 66,906 | $0 |
| 2026-05-22 | Samsara BioCapital GP, LLC | 10% Owner | Sell | 66,906 | $0 |
| 2026-05-22 | AKKARAJU SRINIVAS | Director | Buy | 244,300 | $1.2M |
| 2026-05-22 | Samsara Opportunity Fund GP, LLC | 10% Owner | Sell | 66,906 | $0 |
| 2026-05-22 | AKKARAJU SRINIVAS | Director | Sell | 66,906 | $0 |
| 2026-05-22 | Samsara BioCapital, L.P. | 10% Owner | Buy | 14,937 | $0 |
| 2026-05-22 | AKKARAJU SRINIVAS | Director | Buy | 14,937 | $0 |
| 2026-05-22 | Samsara BioCapital GP, LLC | 10% Owner | Buy | 14,937 | $0 |
| 2026-05-22 | Samsara Opportunity Fund, L.P. | 10% Owner | Buy | 14,937 | $0 |
| 2026-05-22 | Samsara Opportunity Fund GP, LLC | 10% Owner | Buy | 14,937 | $0 |
| 2026-05-22 | Samsara Opportunity Fund GP, LLC | 10% Owner | Buy | 4,471 | $0 |
| 2026-05-22 | AKKARAJU SRINIVAS | Director | Buy | 4,471 | $0 |
| 2026-05-22 | Samsara BioCapital, L.P. | 10% Owner | Buy | 4,471 | $0 |
| 2026-05-22 | Samsara BioCapital GP, LLC | 10% Owner | Buy | 4,471 | $0 |
| 2026-05-22 | Samsara Opportunity Fund, L.P. | 10% Owner | Sell | 66,906 | $0 |
| 2026-03-23 | Hagen Brett R | Chief Accounting Officer | Sell | 1,915 | $12,869 |
| 2026-02-17 | AKKARAJU SRINIVAS | Director | Buy | 479,847 | $5.0M |
| 2026-02-17 | Samsara BioCapital, L.P. | Insider | Buy | 479,847 | $5.0M |
| 2026-02-17 | Samsara BioCapital GP, LLC | Insider | Buy | 479,847 | $5.0M |
| 2026-02-17 | Samsara Opportunity Fund, L.P. | Insider | Buy | 479,847 | $5.0M |
Source: SEC Form 4 filings · as of 2026-05-22