CRISPR Therapeutics AG CRSP Insider Ownership

NASDAQ CRSP
$45.75 +0.60 (+1.33%)
At close: Nov 11, 2026 · 4:00 PM EST

Insider Holdings by Owner

549.88K Shares
Samarth Kulkarni311.90K56.7%
James R. Kasinger95.86K17.4%
Lawrence Otto Klein26.80K4.9%
Douglas A Treco22.00K4.0%
Naimish Patel19.36K3.5%
Other insiders (7)73.97K13.5%

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
2.56%
▲+0.0079% pp QoQ
Shares Held by Insiders
2.48Mn
filed for Sep 2026
▲+0.66% QoQ
Shares Outstanding
97.00Mn
97,000,813 shares
Direct Holdings
440.64K
Indirect: 2.04Mn
Net Open-Market Trades
-24.08K
net sold · -$1.41Mn in Sep 2026
Insiders Holding Shares
12
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Open-Market Insider Trades

Bought Sold
Latest quarter —
Net over range —
Net-buying quarters —

Insider Ownership Summary

In the last 12 months, insiders at Crispr Therapeutics AG made open-market sales of $17.94 million (327.42K shares) and bought no shares on the open market.

Form 4 Holdings

Insiders Holding CRSP

Insiders 12
Shares held 549.88K
Of outstanding 0.567%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Samarth Kulkarni Chief Executive Officer 311,899 0 311,899 56.7% 20 Oct, 2026
2 James R. Kasinger General Counsel And Secretary 95,857 0 95,857 17.4% 15 Oct, 2026
3 Lawrence Otto Klein Cbo Coo 26,797 0 26,797 4.9% 14 Mar, 2022
4 Douglas A Treco Director 22,000 0 22,000 4.0% 08 Aug, 2025
5 Naimish Patel Chief Medical Officer 19,357 0 19,357 3.5% 01 Jun, 2026
6 Ali Behbahani Director 16,637 0 16,637 3.0% 21 Sep, 2026
7 Simeon George Director 15,486 0 15,486 2.8% 16 Oct, 2026
8 Raju Prasad Chief Financial Officer 14,815 0 14,815 2.7% 11 Aug, 2026
9 Julianne Bruno Chief Operating Officer 10,544 0 10,544 1.9% 24 Mar, 2025
10 John Greene Director 7,000 0 7,000 1.3% 28 Feb, 2025
11 Brendan Smith Chief Financial Officer 5,072 0 5,072 0.9% 22 Feb, 2023
12 Phuong Khanh Morrow Chief Medical Officer 4,411 0 4,411 0.8% 25 May, 2023

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,460 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
04 Nov, 2026 Sivakesava Sakhamuri Chief Technical Officer Acquired A 90,000 $0.00 $0 90,000 Direct
04 Nov, 2026 Sivakesava Sakhamuri Chief Technical Officer Acquired A 40,000 $0.00 $0 40,000 Direct
26 Oct, 2026 James R. Kasinger General Counsel And Secretary Acquired A 18,000 $0.00 $0 18,000 Direct
26 Oct, 2026 Naimish Patel Chief Medical Officer Acquired A 24,000 $0.00 $0 24,000 Direct
26 Oct, 2026 Samarth Kulkarni Chief Executive Officer Acquired A 57,500 $0.00 $0 57,500 Direct
26 Oct, 2026 Andrew Jacob Silver Chief Financial Officer Acquired A 18,000 $0.00 $0 18,000 Direct
26 Oct, 2026 Andrew Jacob Silver Chief Financial Officer Acquired A 9,000 $0.00 $0 9,000 Direct
26 Oct, 2026 James R. Kasinger General Counsel And Secretary Acquired A 9,000 $0.00 $0 9,000 Direct
26 Oct, 2026 Samarth Kulkarni Chief Executive Officer Acquired A 28,750 $0.00 $0 28,750 Direct
26 Oct, 2026 Naimish Patel Chief Medical Officer Acquired A 12,000 $0.00 $0 12,000 Direct
19 Oct, 2026 Andrew Jacob Silver Chief Financial Officer Acquired A 25,000 $0.00 $0 25,000 Direct
16 Oct, 2026 Samarth Kulkarni Chief Executive Officer Acquired M 100,000 — — 359,736 Direct
19 Oct, 2026 Samarth Kulkarni Chief Executive Officer Disposed S 47,837 $49.78 $2.38Mn 311,899 Direct
16 Oct, 2026 Samarth Kulkarni Chief Executive Officer Disposed M 100,000 — — 200,000 Direct
14 Oct, 2026 Simeon George Director Acquired M 30,000 $14.00 $420.00K 30,000 Direct
14 Oct, 2026 Simeon George Director Disposed S 14,514 $49.63 $720.37K 15,486 Direct
14 Oct, 2026 Simeon George Director Disposed M 30,000 $0.00 $0 0 Direct
13 Oct, 2026 Samarth Kulkarni Chief Executive Officer Acquired M 8,333 — — 263,834 Direct
13 Oct, 2026 James R. Kasinger General Counsel And Secretary Acquired M 2,113 — — 96,897 Direct
14 Oct, 2026 James R. Kasinger General Counsel And Secretary Disposed S 1,040 $49.26 $51.23K 95,857 Direct