undamentalytics Newsletter

Crispr Therapeutics AG insider trading

Every open-market purchase and sale by Crispr Therapeutics AG's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Crispr Therapeutics AG insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Crispr Therapeutics AG’s insiders pay?

From December 7, 2017 to October 20, 2026, 16 insiders reported 8 open-market purchases and 48 sales not made under a pre-set plan in Crispr Therapeutics AG. Twelve months after each purchase was reported, the shares were +23.2% against the S&P 500 on average (median +23.1%), over 7 purchases with a full year of prices; 57% beat the index. After sales, the shares moved −16.5% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on January 12, 2018 into $31,577 by November 2, 2026, +14.0% a year. It held shares 39% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $18,671 (+7.4% a year), and held throughout $31,082 (+13.8%).

$0$20.0k$40.0k 201820192020202120222023202420252026 $31.6k$31.1k$18.7k
Copying Crispr Therapeutics AG's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Crispr Therapeutics AG's insiders from January 12, 2018, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 39% of the time.
Crispr Therapeutics AG: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Kulkarni Samarth Chief Executive Officer 0 — — 14 −23.8% (8) October 20, 2026
Kasinger James R. General Counsel and Secretary 0 — — 12 −20.2% (7) October 15, 2026
Prasad Raju Chief Financial Officer 0 — — 5 −18.8% (3) March 24, 2026
Bolzon Bradley J Phd Director 0 — — 4 −46.3% (4) February 23, 2021
Bruno Julianne Chief Operating Officer 0 — — 4 −10.0% (4) March 24, 2025
Emster Kurt Von Director 1 +28.6% (1) 100% 3 +11.2% (3) December 19, 2018
Patel Naimish Chief Medical Officer 1 — — 3 +12.2% (1) June 1, 2026
Bayer Aktiengesellschaft 10% owner 1 −16.4% (1) 0% 0 — January 30, 2018
Behbahani Ali Director 0 — — 1 — September 21, 2026
Celgene Corp /de/ 10% owner 0 — — 1 +87.8% (1) December 7, 2017
George Simeon Director 1 −46.6% (1) 0% 0 — July 17, 2025
Greene John Director 1 +23.1% (1) 100% 0 — February 28, 2025
Treco Douglas A Director 1 −25.4% (1) 0% 0 — August 8, 2025
Vertex Pharmaceuticals (europe) Ltd 10% owner 1 +117.3% (1) 100% 0 — December 26, 2018
Vertex Pharmaceuticals Inc / Ma 10% owner 1 +82.0% (1) 100% 0 — December 28, 2018
Woiwode Thomas Director 0 — — 1 −46.7% (1) May 17, 2018

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Crispr Therapeutics AG

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Crispr Therapeutics AG in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 3 buying crowds with six months of prices, it averaged +24.4% against the index. After 4 selling crowds, −4.8%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
March 31, 20264 selling+2.0%−1.6%not yet
August 29, 20252 buying−3.1%+5.9%−9.8%
March 31, 20254 selling+31.8%+70.7%+25.0%
March 28, 20243 selling−25.1%−40.5%−60.0%
December 31, 20182 buying+17.7%+44.4%+82.0%
May 31, 20183 selling−32.4%−47.7%−51.1%
January 31, 20182 buying+29.8%+22.8%−16.4%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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