York Charles N II

COO and CFO

York Charles N II has filed 3 SEC Form 4 filings (11 transaction rows) across 1 company, with disclosures dating back to 2025. 3 of those filings fall inside the rolling window. Most recent filing: Apr 23, 2026.

On the most recent filing, York Charles N II is listed as COO and CFO at Day One Biopharmaceuticals, Inc. Inside the rolling window, York Charles N II reported no open-market purchases and 2 open-market sales totaling $107K in DAWN. The largest disclosed transaction in the window is a sale of 6,065 DAWN shares on Feb 17, 2026, worth $70K.

Companies traded

Other insiders at DAWN

Insider Buying

$0

reported purchases (SEC code P)

Insider Selling

$107K

reported sales (SEC code S)

Companies

1

in the rolling window

Source
DAWNSale$70KFeb 18SEC ↗
DAWNSale$36KNov 18SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has York Charles N II made?

York Charles N II has filed 3 SEC Form 4 filings (11 transaction rows) across 1 company since 2025.

Which companies does York Charles N II trade?

York Charles N II has filed SEC Form 4 disclosures for 1 company, including DAWN.

When was York Charles N II's most recent SEC Form 4 filing?

York Charles N II's most recent SEC Form 4 filing on Tracefour is dated Apr 23, 2026.

What is York Charles N II's job title?

On the most recent SEC Form 4 filings tracked by Tracefour, York Charles N II is listed as COO and CFO.

What is York Charles N II's total buy and sell value in the current window?

Inside the rolling retention window, York Charles N II bought $0 and sold $107K based on SEC Form 4 filings.

What was York Charles N II's largest disclosed transaction?

The largest disclosed transaction in the current window is a sale of 6,065 DAWN shares on 2026-02-17, worth $70K, per SEC Form 4 filings.