Investors / filer profile

Armstrong Brian

Chairman and CEO

active in 1 company

Pro
Bought: Pro
Sold: 137
Filings: 1
Companies: 2026-01-05
Last filed

EDGAR · CIK 0001851492 ↗

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 · −$530.49M sold

All filings on record

Every Form 4 transaction we track for this filer


COINCoinbase Global, Inc.	Sell $71.8K · 287 sh	2026-01-05	—
COINCoinbase Global, Inc.	Sell $4.72M · 18,923 sh	2026-01-05	—
COINCoinbase Global, Inc.	Sell $5.17M · 20,790 sh	2026-01-05	—
COINCoinbase Global, Inc.	Exercise $748.4K · 40,000 sh	2026-01-05	—
COINCoinbase Global, Inc.	Sell $399.4K · 1,583 sh	2025-12-22	—
COINCoinbase Global, Inc.	Sell $2.17M · 8,635 sh	2025-12-22	—
COINCoinbase Global, Inc.	Sell $2.93M · 11,707 sh	2025-12-22	—
COINCoinbase Global, Inc.	Sell $2.23M · 8,937 sh	2025-12-22	—
COINCoinbase Global, Inc.	Sell $2.27M · 9,138 sh	2025-12-22	—
COINCoinbase Global, Inc.	Exercise $748.4K · 40,000 sh	2025-12-22	—

COINSell

2026-01-05 · Coinbase Global, Inc.

$71.8K

—

COINSell

2026-01-05 · Coinbase Global, Inc.

$4.72M

—

COINSell

2026-01-05 · Coinbase Global, Inc.

$5.17M

—

COINExercise

2026-01-05 · Coinbase Global, Inc.

$748.4K

—

COINSell

2025-12-22 · Coinbase Global, Inc.

$399.4K

—

COINSell

2025-12-22 · Coinbase Global, Inc.

$2.17M

—

COINSell

2025-12-22 · Coinbase Global, Inc.

$2.93M

—

COINSell

2025-12-22 · Coinbase Global, Inc.

$2.23M

—

COINSell

2025-12-22 · Coinbase Global, Inc.

$2.27M

—

COINExercise

2025-12-22 · Coinbase Global, Inc.

$748.4K

—

Newest 10 of 137 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.