GIGM
Hwang Collin, GIGM's CEO, spent $108K of their own money on 39,000 shares at $3, growing their stake 6%.
+$108K
39,000 sh @ $3
Hwang Collin
Director, Chief Executive Officer, CEO · SEC CIK 1568374
Insider at
GIGM GIGAMEDIA Ltd
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Buy track record
How this insider's open-market purchases have performed0%
of buys now in profit
0 up · 22 down
Avg return since buy−46.7%
Median return−46.5%
Best trade−46.5%
Worst trade−50.4%
Buys scored22
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+0.3%
5% won · 22 trades
After 3 months
+0.2%
5% won · 22 trades
After 6 months
−0.1%
5% won · 22 trades
After 12 months
+2.2%
23% won · 22 trades
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 14, 2016 | GIGM | $3 | $108K | +6.1% | +7.1% | +5.0% | +7.9% | +4.3% | −50.4% | |
| Dec 23, 2015 | GIGM | $3 | $84.4K | +5.4% | +0.0% | +0.0% | −3.5% | +15.4% | −46.5% | |
| Dec 22, 2015 | GIGM | $3 | $79K | +5.3% | +0.0% | +0.0% | −3.1% | +13.8% | −46.5% | |
| Dec 21, 2015 | GIGM | $3 | $93.8K | +6.7% | +0.0% | +0.0% | −1.9% | +16.2% | −46.5% | |
| Dec 18, 2015 | GIGM | $3 | $260.2K | +16% | +0.0% | +0.0% | −0.8% | +21.2% | −46.5% | |
| Nov 16, 2015 | GIGM | $1 | $67.6K | +5.1% | +0.0% | +0.0% | +0.0% | −2.7% | −46.5% | |
| Nov 16, 2015 | GIGM | $1 | $600 | — | +0.0% | +0.0% | +0.0% | −2.7% | −46.5% | |
| Nov 16, 2015 | GIGM | $1 | $240 | — | +0.0% | +0.0% | +0.0% | −2.7% | −46.5% | |
| Nov 16, 2015 | GIGM | $1 | $118 | — | +0.0% | +0.0% | +0.0% | −2.7% | −46.5% | |
| Nov 13, 2015 | GIGM | $1 | $58K | +4.8% | +0.0% | +0.0% | +0.0% | −2.7% | −46.5% | |
| Nov 13, 2015 | GIGM | $1 | $31.2K | +2.6% | +0.0% | +0.0% | +0.0% | −2.7% | −46.5% | |
| Nov 12, 2015 | GIGM | $1 | $17.6K | +1.6% | +0.0% | +0.0% | +0.0% | −2.7% | −46.5% | |
| Nov 11, 2015 | GIGM | $1 | $146.2K | +16% | +0.0% | +0.0% | +0.0% | −2.3% | −46.5% | |
| Nov 11, 2015 | GIGM | $1 | $52.1K | +4.9% | +0.0% | +0.0% | +0.0% | −2.3% | −46.5% | |
| Nov 9, 2015 | GIGM | $1 | $66.4K | +8.1% | +0.0% | +0.0% | +0.0% | +0.0% | −46.5% | |
| Oct 31, 2014 | GIGM | $1 | $65.6K | +4.6% | +0.0% | +0.0% | +0.0% | +0.0% | −46.5% | |
| Oct 29, 2014 | GIGM | $1 | $52.5K | +3.7% | +0.0% | +0.0% | +0.0% | +0.0% | −46.5% | |
| Oct 28, 2014 | GIGM | $1 | $18K | +1.4% | +0.0% | +0.0% | +0.0% | +0.0% | −46.5% | |
| Oct 27, 2014 | GIGM | $1 | $362.4K | +38% | +0.0% | +0.0% | +0.0% | +0.0% | −46.5% | |
| Dec 21, 2012 | GIGM | $1 | $831.7K | +914% | +0.0% | +0.0% | +0.0% | +0.0% | −46.5% | |
| Dec 20, 2012 | GIGM | $1 | $69.7K | +300% | +0.0% | +0.0% | +0.0% | +0.0% | −46.5% | |
| Dec 19, 2012 | GIGM | $1 | $21.3K | NEW | +0.0% | +0.0% | +0.0% | +0.0% | −46.5% |
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 22 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$2.49M
22 trades
Open-market sells
$0
0 trades
Net flow
+$2.49M
Net buying
Total filings
22
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstGIGM
Hwang Collin, GIGM's CEO, spent $84.4K of their own money on 28,123 shares at $3, growing their stake 5%.
+$84.4K
28,123 sh @ $3
GIGM
Hwang Collin, GIGM's CEO, spent $79K of their own money on 26,338 shares at $3, growing their stake 5%.
+$79K
26,338 sh @ $3
GIGM
Hwang Collin, GIGM's CEO, spent $93.8K of their own money on 31,263 shares at $3, growing their stake 7%.
+$93.8K
31,263 sh @ $3
GIGM
Hwang Collin, GIGM's CEO, spent $260.2K of their own money on 87,799 shares at $3, growing their stake 16%.
+$260.2K
87,799 sh @ $3
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GIGM
Hwang Collin, GIGM's CEO, spent $67.6K of their own money on 112,712 shares at $1, growing their stake 5%.
+$67.6K
112,712 sh @ $1
GIGM
+$600
1,000 sh @ $1
GIGM
+$240
400 sh @ $1
GIGM
+$118
200 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $58K of their own money on 100,000 shares at $1, growing their stake 5%.
+$58K
100,000 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $31.2K of their own money on 53,754 shares at $1, growing their stake 3%.
+$31.2K
53,754 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $17.6K of their own money on 30,477 shares at $1, growing their stake 2%.
+$17.6K
30,477 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $146.2K of their own money on 251,992 shares at $1, growing their stake 16%.
+$146.2K
251,992 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $52.1K of their own money on 89,387 shares at $1, growing their stake 5%.
+$52.1K
89,387 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $66.4K of their own money on 118,490 shares at $1, growing their stake 8%.
+$66.4K
118,490 sh @ $1
GIGM
Hwang Collin, GIGM's Director, spent $65.6K of their own money on 63,711 shares at $1, growing their stake 5%.
+$65.6K
63,711 sh @ $1
GIGM
Hwang Collin, GIGM's Director, spent $52.5K of their own money on 50,000 shares at $1, growing their stake 4%.
+$52.5K
50,000 sh @ $1
GIGM
Hwang Collin, GIGM's Director, spent $18K of their own money on 18,227 shares at $1, growing their stake 1%.
+$18K
18,227 sh @ $1
GIGM
Hwang Collin, GIGM's Director, spent $362.4K of their own money on 365,000 shares at $1, growing their stake 38%.
+$362.4K
365,000 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $831.7K of their own money on 866,373 shares at $1, growing their stake 914%.
+$831.7K
866,373 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $69.7K of their own money on 71,127 shares at $1, growing their stake 300%.
+$69.7K
71,127 sh @ $1
GIGM
Hwang Collin, GIGM's CEO, spent $21.3K of their own money on 23,700 shares at $1, opening a brand-new position.
+$21.3K
23,700 sh @ $1
Frequently asked questions
How is Hwang Collin'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 Hwang Collin'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.