Marshall William Spencer
Co-Founder and CEO
Marshall William Spencer has filed 15 SEC Form 4 filings (22 transaction rows) across 1 company, with disclosures dating back to 2025. 13 of those filings fall inside the rolling window. Most recent filing: Sep 18, 2026.
On the most recent filing, Marshall William Spencer is listed as Co-Founder and CEO at Planet Labs PBC. Inside the rolling window, Marshall William Spencer reported no open-market purchases and 3 open-market sales totaling $16.1M in PL. The largest disclosed transaction in the window is a sale of 200,000 PL shares on Apr 6, 2026, worth $7.0M.
Companies traded
Other insiders at PL
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$16.1M
reported sales (SEC code S)
Companies
1
in the rolling window
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Oct 13, 2025 | PL | Sale | $3.1M |
Frequently asked questions
How many SEC Form 4 filings has Marshall William Spencer made?
Marshall William Spencer has filed 15 SEC Form 4 filings (22 transaction rows) across 1 company since 2025.
Which companies does Marshall William Spencer trade?
Marshall William Spencer has filed SEC Form 4 disclosures for 1 company, including PL.
When was Marshall William Spencer's most recent SEC Form 4 filing?
Marshall William Spencer's most recent SEC Form 4 filing on Tracefour is dated Sep 18, 2026.
What is Marshall William Spencer's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Marshall William Spencer is listed as Co-Founder and CEO.
What is Marshall William Spencer's total buy and sell value in the current window?
Inside the rolling retention window, Marshall William Spencer bought $0 and sold $16.1M based on SEC Form 4 filings.
What was Marshall William Spencer's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 200,000 PL shares on 2026-04-06, worth $7.0M, per SEC Form 4 filings.