undamentalytics Newsletter

Exelixis, Inc. insider trading

Every open-market purchase and sale by Exelixis, Inc.'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.
Exelixis, Inc. 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 Exelixis, Inc.’s insiders pay?

From August 17, 2010 to May 28, 2026, 25 insiders reported 18 open-market purchases and 147 sales not made under a pre-set plan in Exelixis, Inc. Twelve months after each purchase was reported, the shares were +75.1% against the S&P 500 on average (median +55.7%), over 5 purchases with a full year of prices; 80% beat the index. After sales, the shares moved −9.2% 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 September 3, 2013 into $57,640 by November 2, 2026, +14.3% a year. It held shares 31% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $22,573 (+6.4% a year), and held throughout $57,528 (+14.2%).

$0$20.0k$40.0k$60.0k 2013201520172019202120232025 $57.6k$57.5k$22.6k
Copying Exelixis, Inc.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Exelixis, Inc.'s insiders from September 3, 2013, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 31% of the time.
Exelixis, Inc.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Haley Patrick J. EVP, Commercial 0 — — 23 −11.0% (20) May 22, 2026
Willsey Lance Director 7 +105.1% (2) 50% 10 −19.9% (10) May 13, 2022
Marchesi Vincent T Director 3 — — 10 −23.0% (10) May 17, 2021
Papadopoulos Stelios Director 1 — — 12 −14.9% (11) November 13, 2025
Poste George Director 0 — — 13 +1.1% (12) May 8, 2026
Feldbaum Carl B Director 0 — — 12 −8.6% (12) February 10, 2023
Hessekiel Jeffrey EVP & General Counsel 0 — — 11 −17.5% (11) May 16, 2025
Senner Christopher J. EVP and CFO 0 — — 11 −13.6% (9) May 19, 2026
Aftab Dana EVP, Research and Development 0 — — 7 +5.4% (3) May 28, 2026
Morrissey Michael President and CEO 1 — — 6 −22.7% (6) November 16, 2018
Cohen Charles Director 0 — — 6 −15.5% (6) February 26, 2021
Schwab Gisela Pres, Prod Dev & Med Aff & CMO 1 — — 5 −23.1% (5) February 19, 2021
Caligan Partners LP Director 3 +42.4% (2) 100% 1 +29.1% (1) November 26, 2025
Freire Maria C Director 0 — — 4 +9.2% (3) May 8, 2026
Beckerle Mary C Director 0 — — 3 +12.3% (1) May 8, 2026
Smith Julie Director 0 — — 3 +41.8% (2) February 19, 2026
Lamb Peter EVP, Discovery Research & CSO 0 — — 2 +95.1% (2) October 19, 2015
Oliver Bob Director 0 — — 2 −9.7% (1) February 18, 2026
Scangos George A Director 0 — — 2 +18.1% (2) September 26, 2018
Garber Alan M Director 0 — — 1 +43.0% (1) December 9, 2016
Heyman Tomas J. Director 0 — — 1 −13.1% (1) May 22, 2025
Johnson David Edward Director 1 +80.2% (1) 100% 0 — May 30, 2024
Karbe Frank EVP & CFO 1 — — 0 — August 25, 2010
Peterson Amy C. EVP Prod Dev & Med Aff & CMO 0 — — 1 −14.4% (1) May 16, 2025
Wyszomierski Jack L Director 0 — — 1 −40.0% (1) November 13, 2020

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 Exelixis, Inc.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Exelixis, Inc. 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 10 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
November 28, 20254 selling−7.6%−1.9%not yet
February 28, 20258 selling+11.8%−12.5%−10.5%
May 31, 20243 selling+12.8%+53.1%+80.2%
March 31, 20223 selling+10.4%−10.6%−6.6%
February 26, 20215 selling−6.8%−30.2%−23.5%
May 29, 20209 selling−26.9%−44.4%−49.0%
August 30, 20193 selling−24.2%−9.2%−9.9%
March 29, 20187 selling−7.7%−31.9%−1.0%
September 29, 20177 selling+18.7%−16.9%−44.6%
December 30, 20163 selling+36.7%+56.6%+88.0%

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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