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Insider

Brian Grassadonia

Ecosystem Lead

Brian Grassadonia (Ecosystem Lead) filed 10 Form 4 reports in the trailing twelve months (0 purchases, 10 sales), most often in Block, Inc. (XYZ). The largest single filing was $3.5M of XYZ (43,348 sh × $80.00, as filed), executed Jul 2.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
10
0 buys · 10 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$11.5M
shares × price, as filed
Last traded
Aug 24
Filed Aug 24

Median ADV $442.4M across their filed names

Open performance
Volume by month
$3.5M$1.7M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · sells $275KNov 2024 · sells $1.1MJan 2025 · sells $379KFeb 2025 · sells $539KApr 2025 · sells $106KMay 2025 · sells $366KAug 2025 · sells $473KSep 2025 · sells $744KOct 2025 · sells $3.0MNov 2025 · sells $898KJan 2026 · sells $136KFeb 2026 · sells $517KApr 2026 · sells $107KMay 2026 · sells $555KJul 2026 · sells $3.5MAug 2026 · sells $2.8M
Buys $0 Sells $15.4M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Technology 10 filings

Sector per market data · by filing · past 12 months

Most traded names
XYZ Block, Inc. XYZ · 0 buys · 15 sells 15 filings SQ SQ SQ · 0 buys · 3 sells 3 filings
Recent filings
SQSALE Block, Inc. View filing → $1.1M
11,616 sh across 3 lots
Exec Nov 21 2024
Filed Nov 25 2024 · 5:30 PM ET
SQSALE Block, Inc. View filing → $275K
4,235 sh across 2 lots
Exec Oct 2 2024
Filed Oct 4 2024 · 5:30 PM ET