Massivemarkets

SEC Form 4

CRISPR Therapeutics AG (CRSP) insider trading

In the 12 months to Oct 24, 2026, 5 CRSP insiders reported open-market sales of $11.9M across 8 filings; one chief medical officer bought $49.7K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$11.9M
8 filings · 5 insiders
Open-market purchases
$49.7K
1 filing · Naimish Patel, Chief Medical Officer
Pre-arranged sales (10b5-1)
7 of 8
$11.1M of $11.9M sold (93%)

Who traded CRSP, and when

  • Purchase
  • Sale
  • Sale, pre-arranged (10b5-1)

CRSP daily close from Oct 24, 2025 to Oct 23, 2026, between $44.34 and $67.61, last $49.39. 8 sale and 1 purchase filings by 6 insiders, marked at their filing dates. Samarth Kulkarni, Chief Executive Officer: sold $5.2M across 1 filing, first filed Jan 22, 2026, last Jan 22, 2026. Raju Prasad, Chief Financial Officer: sold $4.5M across 3 filings, first filed Dec 23, 2025, last Jan 26, 2026. Ali Behbahani, Director: sold $780.9K across 1 filing, first filed Sep 21, 2026, last Sep 21, 2026. James R. Kasinger, General Counsel and Secretary: sold $745.9K across 2 filings, first filed Sep 24, 2026, last Oct 8, 2026. Simeon George, Director: sold $720.4K across 1 filing, first filed Oct 16, 2026, last Oct 16, 2026. Naimish Patel, Chief Medical Officer: bought $49.7K across 1 filing, first filed Jan 27, 2026, last Jan 27, 2026.

Largest mark · tap a row for others

Samarth Kulkarni · Chief Executive Officer

Sale $5,166,298

90,000 shares at $57.40 avg

Filed Jan 22, 2026 · traded Jan 20

Pre-arranged (10b5-1) · close on filing date $60.81

CRSP daily closelast $49.39

Samarth Kulkarni · Chief Executive Officer

$5.2M sold

Raju Prasad · Chief Financial Officer

$4.5M sold

Ali Behbahani · Director

$780.9K sold

James R. Kasinger · General Counsel and Secretary

$745.9K sold

Simeon George · Director

$720.4K sold

Naimish Patel · Chief Medical Officer

$49.7K bought
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has CRISPR Therapeutics AG's CEO sold stock?

Yes. Samarth Kulkarni (CEO) sold 90,000 shares ($5.2M) in Jan 2026, all under a pre-arranged 10b5-1 plan.

Open-market trades

9 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Samarth KulkarniChief Executive Officer$5.2M—1100% of sales
Raju PrasadChief Financial Officer$4.5M—3100% of sales
Ali BehbahaniDirector$780.9K—1—
James R. KasingerGeneral Counsel and Secretary$745.9K—2100% of sales
Simeon GeorgeDirector$720.4K—1100% of sales
Naimish PatelChief Medical Officer—$49.7K1—
Other insider activity (not market trades) · 44 records
  • Option exercises23 records
  • Tax withholding (sold to cover)16 records
  • Gifts3 records
  • Other2 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for CRSP every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.