Kalaris Therapeutics, Inc. (KLRS) Insider Ownership

Historic Insider Ownership Trends

Kalaris Therapeutics's three largest insider shareholders as of March 23, 2026 are Vikas Sinha (See Remarks, 16.67Mn shares), Ansbert Gadicke (Director, 16.67Mn shares), Llc Elevatebio, (Director, 16.67Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Morana Jovan-Embiricos 0 16,674,766 01 Aug, 2022
Ansbert Gadicke 0 16,674,766 01 Aug, 2022
Llc Elevatebio, 16,674,766 0 01 Aug, 2022
Vikas Sinha See Remarks 0 16,674,766 01 Aug, 2022
Sciences, Inc. Gilead 16,635,286 0 28 Jun, 2023
Juan Vera 2,409,928 0 07 Jun, 2024
Ann M. Leen Chief Scientific Officer 0 2,288,154 16 Nov, 2021
David Hallal 2,143,662 0 07 Jun, 2024
Diana Brainard Chief Executive Officer 723,363 0 20 Nov, 2024
Agustin Melian Chief Medical Officer 453,529 0 05 Oct, 2021
Samir Chandrakant Patel 252,000 100,800 18 Mar, 2025
Edward Miller General Counsel 0 346,348 11 Dec, 2024
Beek Jeroen B Van Chief Commercial Officer 333,726 0 18 Nov, 2022
Cintia Piccina Chief Commercial Officer 147,000 0 05 Jul, 2023
David Hallal 0 138,153 21 Oct, 2022
Ercem Atillasoy See Remarks 131,372 0 26 Oct, 2022
Jeffrey S Bornstein 110,197 0 07 Jun, 2024
Malcolm Brenner 100,197 0 07 Jun, 2024
Morana Jovan-Embiricos 100,197 0 07 Jun, 2024
Shawn Tomasello 70,000 0 07 Jun, 2024
Vikas Sinha See Remarks 49,129 0 24 Feb, 2025
Ann M. Leen Chief Scientific Officer 43,000 0 17 Aug, 2022
Edward Miller General Counsel 6,517 0 24 Feb, 2025
Matthew Feinsod Chief Medical Officer 4,030 0 18 Mar, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
20 Mar, 2026 Brett R Hagen Common Stock D 1,915 $6.72 0 D S
19 Mar, 2026 Brett R Hagen Stock Option (Right to Buy) A 60,800 $0.00 60,800 D A
19 Mar, 2026 Matthew Feinsod Stock Option (Right to Buy) A 135,000 $0.00 135,000 D A
19 Mar, 2026 Matthew Gall Stock Option (Right to Buy) A 95,000 $0.00 95,000 D A
19 Mar, 2026 Andrew Oxtoby Stock Option (Right to Buy) A 222,000 $0.00 222,000 D A
03 Nov, 2025 Matthew Gall Stock Option (Right to Buy) A 235,000 $0.00 235,000 D A
10 Apr, 2025 Brett R Hagen Stock Option (Right to Buy) A 50,262 $0.00 50,262 D A
10 Apr, 2025 Andrew Oxtoby Stock Option (Right to Buy) A 287,000 $0.00 287,000 D A
10 Apr, 2025 Leone D Patterson Stock Option (Right to Buy) A 18,000 $0.00 18,000 D A
10 Apr, 2025 Matthew Feinsod Stock Option (Right to Buy) A 70,551 $0.00 70,551 D A
10 Apr, 2025 Samir Chandrakant Patel Stock Option (Right to Buy) A 18,000 $0.00 18,000 D A
10 Apr, 2025 Matthew Feinsod Stock Option (Right to Buy) A 101,000 $0.00 101,000 D A
26 Mar, 2025 Brett R Hagen Common Stock D 907 $8.97 1,925 D S
18 Mar, 2025 Andrew Oxtoby Stock Option (right to buy) A 476,611 - 476,611 D A
18 Mar, 2025 Samir Chandrakant Patel Common Stock A 252,000 - 252,000 D A
18 Mar, 2025 Matthew Feinsod Common Stock A 4,030 - 4,030 D A
18 Mar, 2025 Matthew Feinsod Stock Option (right to buy) A 28,224 - 28,224 D A
18 Mar, 2025 Samir Chandrakant Patel Common Stock A 100,800 - 100,800 I A
18 Mar, 2025 Samir Chandrakant Patel Stock Option (right to buy) A 105,913 - 105,913 D A
21 Feb, 2025 Vikas Sinha Common Stock D 303 $10.08 49,129 D S