undamentalytics Newsletter

Zentalis Pharmaceuticals, Inc. insider trading

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

From December 3, 2020 to August 19, 2026, 15 insiders reported 11 open-market purchases and 9 sales not made under a pre-set plan in Zentalis Pharmaceuticals, Inc. Twelve months after each purchase was reported, the shares were −90.0% against the S&P 500 on average (median −100.4%), over 4 purchases with a full year of prices; 0% beat the index. After sales, the shares moved −76.0% 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 August 23, 2021 into $1,270 by November 2, 2026, −32.9% a year. It held shares 37% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $15,127 (+8.3% a year), and held throughout $18,142 (+12.2%).

$0$10.0k$20.0k 202120222023202420252026 $18.1k$15.1k$1.3k
Copying Zentalis Pharmaceuticals, Inc.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Zentalis Pharmaceuticals, Inc.'s insiders from August 23, 2021, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 37% of the time.
Zentalis Pharmaceuticals, Inc.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Lackner Mark Chief Scientific Officer 0 — — 3 −106.6% (1) February 5, 2025
Eastland Julia Marie CEO & President 1 — — 1 — February 10, 2026
Paul Andrea Chief Legal Officer 0 — — 2 −106.6% (1) February 5, 2025
Walters William Thurman 10% owner 2 — — 0 — August 19, 2026
Blackwell Kimberly Chief Executive Officer 1 −100.4% (1) 0% 0 — November 13, 2023
Bruns Ingmar Chief Medical Officer 1 — — 0 — February 12, 2025
Epperly Melissa B, Chief Financial Officer 1 −48.2% (1) 0% 0 — August 20, 2021
Goel David E. 10% owner 0 — — 1 — December 15, 2025
Halvorsen Ole Andreas 10% owner 0 — — 1 +14.1% (1) December 3, 2020
Hausman Diana Chief Medical Officer 0 — — 1 −104.8% (1) May 9, 2024
Johnson David Michael Director 1 −100.4% (1) 0% 0 — November 13, 2023
Matrix Capital Management Company, LP 10% owner 1 −110.9% (1) 0% 0 — June 20, 2023
Myers Scott Dunseth Director 1 — — 0 — April 30, 2025
Skvarka Jan Director 1 — — 0 — February 4, 2025
Walker Luke Nathaniel Director 1 — — 0 — February 4, 2025

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 Zentalis Pharmaceuticals, Inc.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Zentalis Pharmaceuticals, 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 the 1 buying crowd with six months of prices, it averaged −15.1% against the index. 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 30, 20232 buying+16.4%−15.1%−101.5%

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.

← Back to Zentalis Pharmaceuticals, Inc. · Funds · Politicians