Shu Lee-Lean

Director, Pres., CEO and Chairman, 10% Owner, President, CEO and Chairman · SEC CIK 1394413
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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
$4.68M
21 trades
Net flow
−$4.68M
Net selling
Total filings
47
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
GSIT
Option exercise Shu Lee-Lean · Director, Pres., CEO and Chairman, 10% Owner · Option exercise · filed May 14, 2026 ΔOwn +1.9%
+$74.9K
10,313 sh @ $7
GSIT
Sell Shu Lee-Lean · Director, Pres., CEO and Chairman, 10% Owner · Open-market sale · filed May 14, 2026 ΔOwn −1.9%

Shu Lee-lean sold $129K of GSIT, trimming their stake 2%.

−$129K
10,313 sh @ $13
GSIT
Option exercise Shu Lee-Lean · Director, Pres., CEO and Chairman, 10% Owner · Option exercise · filed May 12, 2026 ΔOwn +1.7%
+$163.4K
32,749 sh @ $5
GSIT
Sell Shu Lee-Lean · Director, Pres., CEO and Chairman, 10% Owner · Open-market sale · filed May 12, 2026 ΔOwn −1.6%

Shu Lee-lean sold $330.4K of GSIT, trimming their stake 2%.

−$330.4K
32,749 sh @ $10
GSIT
Option exercise Shu Lee-Lean · Director, Pres., CEO and Chairman, 10% Owner · Option exercise · filed May 12, 2026 ΔOwn +5.0%
+$726K
100,000 sh @ $7
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GSIT
Sell Shu Lee-Lean · Director, Pres., CEO and Chairman, 10% Owner · Open-market sale · filed May 12, 2026 ΔOwn −4.8%

Shu Lee-lean sold $1.2M of GSIT, trimming their stake 5%.

−$1.2M
100,000 sh @ $12
GSIT
Option exercise Shu Lee-Lean · Director, Pres., CEO and Chairman, 10% Owner · Option exercise · filed May 12, 2026 ΔOwn +1.9%
+$51.5K
10,313 sh @ $5
GSIT
Sell Shu Lee-Lean · Director, Pres., CEO and Chairman, 10% Owner · Open-market sale · filed May 12, 2026 ΔOwn −1.9%

Shu Lee-lean sold $108.4K of GSIT, trimming their stake 2%.

−$108.4K
10,313 sh @ $11
GSIT
Option exercise Shu Lee-Lean · Director, Pres., CEO and Chairman · Option exercise · filed Mar 17, 2026 ΔOwn +1.8%
+$182.2K
36,517 sh @ $5
GSIT
Sell Shu Lee-Lean · Director, Pres., CEO and Chairman · Open-market sale · filed Mar 17, 2026 ΔOwn −1.8%

Shu Lee-lean sold $365.6K of GSIT, trimming their stake 2%.

−$365.6K
36,517 sh @ $10
GSIT
Option exercise Shu Lee-Lean · Director, Pres., CEO and Chairman · Option exercise · filed Mar 17, 2026 ΔOwn +1.6%
+$153.4K
30,734 sh @ $5
GSIT
Sell Shu Lee-Lean · Director, Pres., CEO and Chairman · Open-market sale · filed Mar 17, 2026 ΔOwn −1.5%

Shu Lee-lean sold $308K of GSIT, trimming their stake 2%.

−$308K
30,734 sh @ $10
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed Feb 23, 2021 ΔOwn +1.3%
+$162.1K
24,793 sh @ $7
GSIT
Sell Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Open-market sale · filed Feb 23, 2021 ΔOwn −1.2%

Shu Lee-lean sold $198.4K of GSIT, trimming their stake 1%.

−$198.4K
24,793 sh @ $8
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed Feb 18, 2021 ΔOwn +0.7%
+$85.1K
13,017 sh @ $7
GSIT
Sell Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Open-market sale · filed Feb 18, 2021 ΔOwn −0.7%

Shu Lee-lean sold $104.3K of GSIT, trimming their stake 1%.

−$104.3K
13,017 sh @ $8
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed May 12, 2020 ΔOwn +5.3%
+$600K
100,000 sh @ $6
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed May 16, 2019 ΔOwn +5.6%
+$343K
100,000 sh @ $3
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed May 16, 2019 ΔOwn +2.0%
+$41.3K
10,313 sh @ $4
GSIT
Sell Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Open-market sale · filed Jan 25, 2019 ΔOwn −3.4%

Shu Lee-lean sold $556.9K of GSIT, trimming their stake 3%.

−$556.9K
61,875 sh @ $9
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed May 16, 2018 ΔOwn +5.7%
+$400K
100,000 sh @ $4
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed Jun 14, 2017 ΔOwn +9.3%
+$38.8K
10,313 sh @ $4
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed Jun 14, 2017 ΔOwn +8.5%
+$38.7K
10,313 sh @ $4
GSIT
Option exercise Shu Lee-Lean · President, CEO and Chairman, 10% Owner · Option exercise · filed May 19, 2017 ΔOwn +3.7%
+$259.9K
61,875 sh @ $4
GSIT
Sell Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Open-market sale · filed Mar 16, 2017 ΔOwn −9.3%

Shu Lee-lean sold $81.7K of GSIT, trimming their stake 9%.

−$81.7K
10,213 sh @ $8
GSIT
Sell Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Open-market sale · filed Mar 16, 2017 ΔOwn −0.1%

Shu Lee-lean sold $800 of GSIT.

−$800
100 sh @ $8
GSIT
Sell Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Open-market sale · filed Mar 3, 2017 ΔOwn −1.9%

Shu Lee-lean sold $222.7K of GSIT, trimming their stake 2%.

−$222.7K
31,875 sh @ $7
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman, 10% Owner · Option exercise · filed Aug 22, 2013 ΔOwn +10%
+$36.1K
10,313 sh @ $4
GSIT
Option exercise Shu Lee-Lean · Director, President, CEO and Chairman · Option exercise · filed Jun 7, 2013 ΔOwn +0.8%
+$29.9K
14,256 sh @ $2
GSIT
Sell Shu Lee-Lean · Director, President, CEO and Chairman · Open-market sale · filed Jun 7, 2013 ΔOwn −0.8%

Shu Lee-lean sold $80.5K of GSIT, trimming their stake 1%.

−$80.5K
14,256 sh @ $6

Frequently asked questions

How is Shu Lee-Lean'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 Shu Lee-Lean'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.