Investors / filer profile

Marshall William Spencer

Co-Founder and CEO

active in 1 company

Pro
Bought: Pro
Sold: 15
Filings: 1
Companies: 2026-06-15
Last filed

EDGAR · CIK 0001898468 ↗

Track record

How each disclosed position did against the S&P ~6 months later

No positions we can measure against the market yet — outcomes appear once a disclosed buy is ~6 months old.

Disclosed positions

Estimated from their latest filings — positions may have changed since

Estimated positions from their latest filingsPro →

Activity

Open-market buy & sell volume

BuySell

Total +$0.0000 bought · −$6.97M sold

All filings on record

Every Form 4 transaction we track for this filer


PLPlanet Labs PBC	Tax $4.12M · 134,641 sh	2026-06-15	—
PLPlanet Labs PBC	Tax $1.51M · 63,041 sh	2026-02-03	—
PLPlanet Labs PBC	Exercise — · 123,900 sh	2026-02-03	—
PLPlanet Labs PBC	Tax $1.66M · 63,039 sh	2026-01-21	—
PLPlanet Labs PBC	Exercise — · 123,897 sh	2026-01-21	—
PLPlanet Labs PBC	Tax $3.05M · 120,522 sh	2026-01-13	—
PLPlanet Labs PBC	Exercise — · 247,794 sh	2026-01-13	—
PLPlanet Labs PBC	Sell $3.87M · 200,000 sh	2025-12-26	—
PLPlanet Labs PBC	Tax $2.20M · 121,897 sh	2025-12-15	—
PLPlanet Labs PBC	Sell $3.10M · 200,000 sh	2025-10-13	—

PLTax

2026-06-15 · Planet Labs PBC

$4.12M

—

PLTax

2026-02-03 · Planet Labs PBC

$1.51M

—

PLExercise

2026-02-03 · Planet Labs PBC

123,900

—

PLTax

2026-01-21 · Planet Labs PBC

$1.66M

—

PLExercise

2026-01-21 · Planet Labs PBC

123,897

—

PLTax

2026-01-13 · Planet Labs PBC

$3.05M

—

PLExercise

2026-01-13 · Planet Labs PBC

247,794

—

PLSell

2025-12-26 · Planet Labs PBC

$3.87M

—

PLTax

2025-12-15 · Planet Labs PBC

$2.20M

—

PLSell

2025-10-13 · Planet Labs PBC

$3.10M

—

Newest 10 of 15 filingsEvery Form 4 on record, with outcomesPro →

Outcomes measure each position — the first buy in a stock and every buy within 182 days — against the closing price ~6 months (120 trading days) later, with the S&P 500 over the same span for context. Pre-scheduled 10b5-1 plan trades are excluded from the record. Positions are estimated from the latest reported post-transaction holdings, split-adjusted, at the latest close. Built from SEC Form 4 filings and market prices — past outcomes, not predictions or advice.