MS
Insider
Michael J. O'Sullivan
See RemarksMichael J. O'Sullivan (See Remarks) filed 5 Form 4 reports in the trailing twelve months (2 purchases, 3 sales), most often in Snap Inc. (SNAP). Across 2 priced purchase filings, the average 21-session return was +0.7% from execution and +1.3% from disclosure (delay-adjusted; derived). The largest single filing was $591K of SNAP (70,882 sh × $8.34, as filed), executed Nov 17 2025.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
+0.7%
avg across 2 priced filings
Delay-adjustediThe same average, entered at disclosure dates
+1.3%
same 2 filings, from disclosure
Filings, ttm
5
2 buys · 3 sells
Median delay
0d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$1.4M
shares × price, as filed
Last traded
Aug 12
Filed Aug 13
Median ADV $212.5M across their filed names
Open performance→Volume by month
Buys $431K
Sells $6.4M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Communication Services
3 filings
Financial Services
2 filings
Sector per market data · by filing · past 12 months
Most traded names
SNAPRecent filings
BRK-BPURCHASE
Berkshire Hathaway Inc.
View filing →
$205K400 sh × $512.52
Exec Aug 12
Filed Aug 13 · 5:06 PM ET BRK-BPURCHASE Berkshire Hathaway Inc. View filing → $226K
483 sh × $467.13
Exec May 6
Filed May 6 · 7:04 PM ET SNAPSALE Snap Inc. View filing → $591K
70,882 sh × $8.34
Exec Nov 17 2025
Filed Nov 19 2025 · 5:30 PM ET SNAPSALE Snap Inc. View filing → $186K
24,000 sh × $7.73
Exec Oct 31 2025
Filed Nov 4 2025 · 5:30 PM ET SNAPSALE Snap Inc. View filing → $189K
24,000 sh × $7.86
Exec Sep 30 2025
Filed Oct 2 2025 · 5:30 PM ET SNAPSALE Snap Inc. View filing → $108K
14,290 sh × $7.58
Exec Sep 16 2025
Filed Sep 18 2025 · 5:30 PM ET SNAPSALE Snap Inc. View filing → $172K
24,000 sh × $7.16
Exec Aug 29 2025
Filed Aug 29 2025 · 5:30 PM ET SNAPSALE Snap Inc. View filing → $493K
68,705 sh × $7.18
Exec Aug 18 2025
Filed Aug 20 2025 · 5:30 PM ET More filings →