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Robert Atchinson

10% owner

Robert Atchinson (10% owner) filed 1 Form 4 report in the past 24 months (1 purchase, 0 sales), most often in SLDB. Across 1 priced purchase filing, the average 21-session return was -26.2% from execution and -11.6% from disclosure (delay-adjusted; derived). The largest single filing was $1.9M of SLDB (252,545 sh × $7.56, as filed), executed Feb 18 2025.

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Return, ttmiAverage return per filing, trailing twelve months
-26.2%
avg across 1 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-11.6%
same 1 filings, from disclosure
Filings, ttm
1
1 buys · 0 sells
Median delay
1d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$1.9M
shares × price, as filed
Last traded
Feb 18 2025
Filed Feb 19 2025
Open performance
Volume by month
$1.9M$955K$0Oct 2024Apr 2025Oct 2025Apr 2026Feb 2025 · buys $1.9M
Buys $1.9M Sells $0

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

Sectors filed on
Not on file 1 filing

Sector per market data · by filing · past 24 months

Most traded names
SLDB SLDB SLDB · 1 buy · 0 sells 1 filing
Recent filings
SLDBPURCHASE Solid Biosciences Inc. View filing → $1.9M
252,545 sh × $7.56
Exec Feb 18 2025
Filed Feb 19 2025 · 5:30 PM ET