Stapley Marc

Director, Chief Executive Officer · SEC CIK 1539796
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Buy track record

How this insider's open-market purchases have performed
100%
of buys now in profit
1 up · 0 down
Avg return since buy+189.8%
Median return+189.8%
Best trade+189.8%
Worst trade+189.8%
Buys scored1
Average return by holding period — separates good entry timing from riding one long winner
After 1 month +51.4% 100% won · 1 trade
After 3 months +27.9% 100% won · 1 trade
After 6 months +78.1% 100% won · 1 trade
After 12 months +63.9% 100% won · 1 trade
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
Jun 10, 2022 VCYT $16 $980.1K +60% +51.4% +27.9% +78.1% +63.9% +189.8%
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 1 scored trade, treat this as a small sample, not a verdict.
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Open-market buys
$980.1K
1 trades
Open-market sells
$16.36M
28 trades
Net flow
−$15.38M
Net selling
Total filings
71
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
VCYT
Option exercise Stapley Marc · Director, Chief Executive Officer · Option exercise · filed 1w ago ΔOwn +31%
+$5.05M
138,051 sh @ $37
VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed 1w ago ΔOwn −24%

Stapley Marc sold $6.92M of VCYT, trimming their stake 24%.

−$6.92M
138,051 sh @ $50
VCYT
Tax withholding Stapley Marc · Director, Chief Executive Officer · Tax withholding · filed 1w ago ΔOwn −2.0%
−$430.8K
9,012 sh @ $48
VCYT
Grant/award Stapley Marc · Director, Chief Executive Officer · Grant/award · filed Mar 10, 2026 ΔOwn +26%
+$0
92,099 sh
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VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed Mar 6, 2026 ΔOwn −4.8%

Stapley Marc sold $684.2K of VCYT, trimming their stake 5%.

−$684.2K
19,244 sh @ $36
VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed Mar 6, 2026 ΔOwn −6.8%

Stapley Marc sold $953.4K of VCYT, trimming their stake 7%.

−$953.4K
26,279 sh @ $36
VCYT
Tax withholding Stapley Marc · Director, Chief Executive Officer · Tax withholding · filed Mar 4, 2026 ΔOwn −4.6%
−$700.6K
19,455 sh @ $36
VCYT
Grant/award Stapley Marc · Director, Chief Executive Officer · Grant/award · filed Mar 2, 2026 ΔOwn +44%
+$0
139,074 sh
VCYT
Tax withholding Stapley Marc · Director, Chief Executive Officer · Tax withholding · filed Mar 2, 2026 ΔOwn −7.8%
−$1.39M
35,841 sh @ $39
GKOS
Option exercise Stapley Marc · Director · Option exercise · filed Jan 26, 2026 ΔOwn +40%
+$370.4K
15,000 sh @ $25
GKOS
Sell Stapley Marc · Director · Open-market sale · filed Jan 26, 2026 ΔOwn −7.3%

Stapley Marc sold $480.6K of GKOS, trimming their stake 7%.

−$480.6K
3,812 sh @ $126
GKOS
Sell Stapley Marc · Director · Open-market sale · filed Jan 26, 2026 ΔOwn −8.0%

Stapley Marc sold $494.1K of GKOS, trimming their stake 8%.

−$494.1K
3,892 sh @ $127
GKOS
Sell Stapley Marc · Director · Open-market sale · filed Jan 26, 2026 ΔOwn −3.7%

Stapley Marc sold $213.8K of GKOS, trimming their stake 4%.

−$213.8K
1,671 sh @ $128
GKOS
Sell Stapley Marc · Director · Open-market sale · filed Jan 26, 2026 ΔOwn −10%

Stapley Marc sold $558.4K of GKOS, trimming their stake 10%.

−$558.4K
4,325 sh @ $129
GKOS
Sell Stapley Marc · Director · Open-market sale · filed Jan 26, 2026 ΔOwn −3.4%

Stapley Marc sold $168.7K of GKOS, trimming their stake 3%.

−$168.7K
1,300 sh @ $130
VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed Dec 4, 2025 ΔOwn −1.4%

Stapley Marc sold $208.6K of VCYT, trimming their stake 1%.

−$208.6K
4,448 sh @ $47
VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed Dec 4, 2025 ΔOwn −1.0%

Stapley Marc sold $152.5K of VCYT, trimming their stake 1%.

−$152.5K
3,220 sh @ $47
VCYT
Tax withholding Stapley Marc · Director, Chief Executive Officer · Tax withholding · filed Dec 4, 2025 ΔOwn −2.4%
−$365.3K
7,914 sh @ $46
VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed Sep 8, 2025 ΔOwn −2.2%

Stapley Marc sold $233.1K of VCYT, trimming their stake 2%.

−$233.1K
7,667 sh @ $30
VCYT
Tax withholding Stapley Marc · Director, Chief Executive Officer · Tax withholding · filed Sep 4, 2025 ΔOwn −2.3%
−$238.3K
7,914 sh @ $30
VCYT
Tax withholding Stapley Marc · Director, Chief Executive Officer · Tax withholding · filed Jun 4, 2025 ΔOwn −2.6%
−$251.3K
9,399 sh @ $27
VCYT
Grant/award Stapley Marc · Director, Chief Executive Officer · Grant/award · filed Mar 10, 2025 ΔOwn +34%
+$0
90,601 sh
VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed Mar 6, 2025 ΔOwn −8.8%

Stapley Marc sold $925.2K of VCYT, trimming their stake 9%.

−$925.2K
28,189 sh @ $33
VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed Mar 6, 2025 ΔOwn −8.0%

Stapley Marc sold $794K of VCYT, trimming their stake 8%.

−$794K
23,414 sh @ $34
VCYT
Sell Stapley Marc · Director, Chief Executive Officer · Open-market sale · filed Mar 6, 2025 ΔOwn −0.4%

Stapley Marc sold $37.6K of VCYT.

−$37.6K
1,094 sh @ $34
VCYT
Tax withholding Stapley Marc · Director, Chief Executive Officer · Tax withholding · filed Mar 3, 2025 ΔOwn −6.0%
−$706.5K
20,324 sh @ $35
VCYT
Grant/award Stapley Marc · Director, Chief Executive Officer · Grant/award · filed Mar 3, 2025 ΔOwn +22%
+$0
67,277 sh

Frequently asked questions

How is Stapley Marc'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 Stapley Marc'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.