QCOM
+$0
538 sh
MCLAUGHLIN MARK D
Director · SEC CIK 1309507Advertisement
Buy track record
How this insider's open-market purchases have performed100%
of buys now in profit
3 up · 0 down
Avg return since buy+43.3%
Median return+40.8%
Best trade+49.6%
Worst trade+39.4%
Buys scored3
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+5.5%
67% won · 3 trades
After 3 months
−13.0%
0% won · 2 trades
After 6 months
−11.3%
50% won · 2 trades
After 12 months
−12.1%
0% won · 2 trades
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 30, 2026 | RBRK | $47 | $502.2K | +354% | +16.7% | — | — | — | +49.6% | |
| Mar 6, 2024 | SNOW | $165 | $501.3K | +35% | −7.3% | −20.9% | −35.0% | −6.5% | +39.4% | |
| May 31, 2023 | SNOW | $164 | $299.9K | +27% | +7.0% | −5.1% | +12.5% | −17.6% | +40.8% |
How this is calculated. We score only open-market purchases (SEC code
P) — the buys that carry real signal. Each trade's return is measured from the adjusted closing price on the purchase date to the latest close, accounting for stock splits and dividends. The 1M/3M/6M/12M columns show the same trade's return after each fixed holding period; a dash means that horizon hasn't elapsed yet or isn't priceable. Sales are excluded because insiders sell for many routine reasons. With only 3 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$1.3M
3 trades
Open-market sells
$12.44M
17 trades
Net flow
−$11.14M
Net selling
Total filings
49
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstQCOM
+$0
449 sh
PANW
−$5.68M
9,500 sh @ $598
QCOM
+$0
375 sh
PANW
−$51.5K
100 sh @ $515
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PANW
−$206.8K
400 sh @ $517
PANW
−$259.1K
500 sh @ $518
PANW
−$259.5K
500 sh @ $519
PANW
−$1.57M
3,000 sh @ $523
PANW
−$524.2K
1,000 sh @ $524
PANW
−$498.9K
950 sh @ $525
PANW
−$26.3K
50 sh @ $526
PANW
−$2.24M
4,234 sh @ $529
PANW
−$141K
266 sh @ $530
PANW
−$167.6K
333 sh @ $503
PANW
−$50.5K
100 sh @ $505
PANW
−$52.8K
104 sh @ $508
PANW
−$388K
763 sh @ $509
PANW
−$101.9K
200 sh @ $510
Frequently asked questions
How is MCLAUGHLIN MARK D's win rate calculated?
We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.
Why are some buys not included in the score?
A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.
What do the 1M / 3M / 6M / 12M columns mean?
They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.
Does a high win rate mean I should copy this insider?
No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.
Where does this data come from?
Trades come from MCLAUGHLIN MARK D's SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.