Thakar Sumedh S

Director, CEO & PRESIDENT · SEC CIK 1558242
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Buy track record

How this insider's open-market purchases have performed
This insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
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Open-market buys
$0
0 trades
Open-market sells
$26.94M
83 trades
Net flow
−$26.94M
Net selling
Total filings
126
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
QLYS
Grant/award Thakar Sumedh S · Director, CEO & PRESIDENT · Grant/award · filed Oct 31, 2025 ΔOwn +30%
+$0
61,092 sh
QLYS
Option exercise Thakar Sumedh S · Director, CEO & PRESIDENT · Option exercise · filed Oct 15, 2025 ΔOwn +3.2%
+$166.1K
6,500 sh @ $26
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Oct 15, 2025 ΔOwn −2.1%

Thakar Sumedh S sold $574.4K of QLYS, trimming their stake 2%.

−$574.4K
4,543 sh @ $126
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Oct 15, 2025 ΔOwn −1.9%

Thakar Sumedh S sold $503.6K of QLYS, trimming their stake 2%.

−$503.6K
3,957 sh @ $127
QLYS
Option exercise Thakar Sumedh S · Director, CEO & PRESIDENT · Option exercise · filed Sep 16, 2025 ΔOwn +3.1%
+$166.1K
6,500 sh @ $26
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QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Sep 16, 2025 ΔOwn −2.7%

Thakar Sumedh S sold $767K of QLYS, trimming their stake 3%.

−$767K
5,801 sh @ $132
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Sep 16, 2025 ΔOwn −1.3%

Thakar Sumedh S sold $359.2K of QLYS, trimming their stake 1%.

−$359.2K
2,699 sh @ $133
QLYS
Option exercise Thakar Sumedh S · Director, CEO & PRESIDENT · Option exercise · filed Aug 15, 2025 ΔOwn +3.1%
+$166.1K
6,500 sh @ $26
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Aug 15, 2025 ΔOwn −2.6%

Thakar Sumedh S sold $742K of QLYS, trimming their stake 3%.

−$742K
5,722 sh @ $130
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Aug 15, 2025 ΔOwn −1.3%

Thakar Sumedh S sold $362.6K of QLYS, trimming their stake 1%.

−$362.6K
2,778 sh @ $131
QLYS
Tax withholding Thakar Sumedh S · Director, CEO & PRESIDENT · Tax withholding · filed Aug 5, 2025 ΔOwn −2.8%
−$788.7K
6,042 sh @ $131
QLYS
Option exercise Thakar Sumedh S · Director, CEO & PRESIDENT · Option exercise · filed Jul 15, 2025 ΔOwn +3.0%
+$166.1K
6,500 sh @ $26
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jul 15, 2025 ΔOwn −0.2%

Thakar Sumedh S sold $54.5K of QLYS.

−$54.5K
400 sh @ $136
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jul 15, 2025 ΔOwn −1.3%

Thakar Sumedh S sold $413.8K of QLYS, trimming their stake 1%.

−$413.8K
3,000 sh @ $138
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jul 15, 2025 ΔOwn −2.2%

Thakar Sumedh S sold $662.7K of QLYS, trimming their stake 2%.

−$662.7K
4,774 sh @ $139
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jul 15, 2025 ΔOwn −0.2%

Thakar Sumedh S sold $45.5K of QLYS.

−$45.5K
326 sh @ $140
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jul 7, 2025 ΔOwn −0.7%

Thakar Sumedh S sold $221.3K of QLYS, trimming their stake 1%.

−$221.3K
1,500 sh @ $148
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jul 7, 2025 ΔOwn −1.4%

Thakar Sumedh S sold $490.1K of QLYS, trimming their stake 1%.

−$490.1K
3,300 sh @ $149
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jul 7, 2025 ΔOwn −2.2%

Thakar Sumedh S sold $732.3K of QLYS, trimming their stake 2%.

−$732.3K
4,887 sh @ $150
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jul 7, 2025 ΔOwn −1.1%

Thakar Sumedh S sold $347.4K of QLYS, trimming their stake 1%.

−$347.4K
2,313 sh @ $150
QLYS
Option exercise Thakar Sumedh S · Director, CEO & PRESIDENT · Option exercise · filed Jun 17, 2025 ΔOwn +2.8%
+$166.1K
6,500 sh @ $26
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jun 17, 2025 ΔOwn −0.8%

Thakar Sumedh S sold $263.5K of QLYS, trimming their stake 1%.

−$263.5K
1,900 sh @ $139
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jun 17, 2025 ΔOwn −2.0%

Thakar Sumedh S sold $655.2K of QLYS, trimming their stake 2%.

−$655.2K
4,700 sh @ $139
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jun 17, 2025 ΔOwn −0.8%

Thakar Sumedh S sold $266.9K of QLYS, trimming their stake 1%.

−$266.9K
1,900 sh @ $140
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jun 3, 2025 ΔOwn −2.5%

Thakar Sumedh S sold $841.2K of QLYS, trimming their stake 3%.

−$841.2K
6,000 sh @ $140
QLYS
Option exercise Thakar Sumedh S · Director, CEO & PRESIDENT · Option exercise · filed Jun 2, 2025 ΔOwn +2.7%
+$166.1K
6,500 sh @ $26
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jun 2, 2025 ΔOwn −1.1%

Thakar Sumedh S sold $352.4K of QLYS, trimming their stake 1%.

−$352.4K
2,602 sh @ $135
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jun 2, 2025 ΔOwn −1.6%

Thakar Sumedh S sold $547.9K of QLYS, trimming their stake 2%.

−$547.9K
4,014 sh @ $136
QLYS
Sell Thakar Sumedh S · Director, CEO & PRESIDENT · Open-market sale · filed Jun 2, 2025 ΔOwn −0.8%

Thakar Sumedh S sold $258.3K of QLYS, trimming their stake 1%.

−$258.3K
1,884 sh @ $137
QLYS
Tax withholding Thakar Sumedh S · Director, CEO & PRESIDENT · Tax withholding · filed May 5, 2025 ΔOwn −2.6%
−$806.7K
6,351 sh @ $127

Frequently asked questions

How is Thakar Sumedh S'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 Thakar Sumedh S'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.