CRISPR Therapeutics AG (CRSP) Insider Ownership

Historic Insider Ownership Trends

As of April 17, 2026, CRISPR Therapeutics AG's top three insider holders are Simeon George (Director, 2.04Mn shares), Rodger Novak (President, 573.01K shares), Bradley J Phd Bolzon (Director, 148.83K 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
Simeon George - 0 2,038,763 17 Jul, 2025
Rodger Novak President 573,007 0 01 Jul, 2021
Bradley J Phd Bolzon - 0 148,831 21 Jul, 2021
James R. Kasinger General Counsel And Secretary 94,308 0 24 Mar, 2026
Tony W Ho Executive Vp, Head Of Rd 52,364 0 07 Dec, 2021
Douglas A Treco - 22,000 0 08 Aug, 2025
Raju Prasad Chief Financial Officer 15,565 0 24 Mar, 2026
Naimish Patel Chief Medical Officer 13,143 0 17 Mar, 2026
Julianne Bruno Chief Operating Officer 10,544 0 24 Mar, 2025
Brendan Smith Chief Financial Officer 5,072 0 22 Feb, 2023
Phuong Khanh Morrow Chief Medical Officer 4,411 0 25 May, 2023
Michael John Tomsicek Chief Financial Officer 1,891 0 10 Aug, 2021

* 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 James R. Kasinger Common Shares A 6,250 - 97,490 D M
20 Mar, 2026 Samarth Kulkarni Common Shares A 19,687 - 265,521 D M
20 Mar, 2026 Raju Prasad Common Shares A 6,250 - 19,273 D M
20 Mar, 2026 Naimish Patel Stock Option (Right to Buy) A 38,499 $0.00 38,499 D A
23 Mar, 2026 Samarth Kulkarni Common Shares D 10,020 $46.78 255,501 D S
23 Mar, 2026 Raju Prasad Common Shares D 3,708 $46.78 15,565 D S
20 Mar, 2026 Naimish Patel Restricted Stock Units A 30,000 $0.00 30,000 D A
23 Mar, 2026 James R. Kasinger Common Shares D 3,182 $46.78 94,308 D S
20 Mar, 2026 James R. Kasinger Stock Option (Right to Buy) A 38,499 $0.00 38,499 D A
20 Mar, 2026 Samarth Kulkarni Stock Option (Right to Buy) A 114,249 $0.00 114,249 D A
20 Mar, 2026 Raju Prasad Stock Option (Right to Buy) A 38,499 $0.00 38,499 D A
20 Mar, 2026 Samarth Kulkarni Restricted Stock Units A 81,875 $0.00 81,875 D A
20 Mar, 2026 Raju Prasad Restricted Stock Units A 27,500 $0.00 27,500 D A
20 Mar, 2026 James R. Kasinger Restricted Stock Units A 25,000 $0.00 25,000 D A
20 Mar, 2026 Raju Prasad Restricted Stock Units D 6,250 - 12,500 D M
20 Mar, 2026 Samarth Kulkarni Restricted Stock Units D 19,687 - 39,375 D M
20 Mar, 2026 James R. Kasinger Restricted Stock Units D 6,250 - 12,000 D M
14 Mar, 2026 Samarth Kulkarni Common Shares A 20,625 - 256,183 D M
14 Mar, 2026 James R. Kasinger Common Shares A 6,875 - 94,690 D M
14 Mar, 2026 Naimish Patel Common Shares A 8,125 - 16,293 D M