GH
−$36.16M
279,127 sh @ $130
Talasaz AmirAli
Director, Co-Chief Executive Officer, Chairman, President and COO, Chairman, President and COO · SEC CIK 1753159
Insider at
GH Guardant Health, Inc.
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Buy track record
How this insider's open-market purchases have performed100%
of buys now in profit
14 up · 0 down
Avg return since buy+195.9%
Median return+41.7%
Best trade+409.0%
Worst trade+34.9%
Buys scored14
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+0.1%
57% won · 14 trades
After 3 months
−1.5%
43% won · 14 trades
After 6 months
−25.3%
43% won · 14 trades
After 12 months
−39.0%
0% won · 14 trades
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 14, 2023 | GH | $26 | $224.4K | +0.4% | −8.2% | +42.4% | +15.2% | −31.2% | +393.1% | |
| Mar 14, 2023 | GH | $26 | $112.2K | +21% | −8.2% | +42.4% | +15.2% | −31.2% | +393.1% | |
| Mar 13, 2023 | GH | $25 | $302K | +0.7% | −4.1% | +45.6% | +24.7% | −26.5% | +409.0% | |
| Mar 13, 2023 | GH | $26 | $724.2K | +1.5% | −4.1% | +45.6% | +24.7% | −26.5% | +409.0% | |
| Mar 13, 2023 | GH | $25 | $151K | NEW | −4.1% | +45.6% | +24.7% | −26.5% | +409.0% | |
| Mar 13, 2023 | GH | $26 | $362.1K | +228% | −4.1% | +45.6% | +24.7% | −26.5% | +409.0% | |
| Nov 23, 2021 | GH | $92 | $557.6K | +0.3% | +4.9% | −35.8% | −59.1% | −46.1% | +41.7% | |
| Nov 23, 2021 | GH | $93 | $2.18M | +1.3% | +4.9% | −35.8% | −59.1% | −46.1% | +41.7% | |
| Nov 23, 2021 | GH | $94 | $470K | +0.3% | +4.9% | −35.8% | −59.1% | −46.1% | +41.7% | |
| Nov 23, 2021 | GH | $96 | $477.5K | +0.3% | +4.9% | −35.8% | −59.1% | −46.1% | +41.7% | |
| Nov 23, 2021 | GH | $97 | $1.44M | +0.8% | +4.9% | −35.8% | −59.1% | −46.1% | +41.7% | |
| Nov 23, 2021 | GH | $98 | $9.8K | — | +4.9% | −35.8% | −59.1% | −46.1% | +41.7% | |
| Nov 19, 2021 | GH | $98 | $3.69M | +2.2% | +2.1% | −36.6% | −64.4% | −50.6% | +34.9% | |
| Nov 19, 2021 | GH | $99 | $1.21M | +0.7% | +2.1% | −36.6% | −64.4% | −50.6% | +34.9% |
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 14 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$11.92M
14 trades
Open-market sells
$327.42M
185 trades
Net flow
−$315.5M
Net selling
Total filings
254
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstGH
+$0
565,192 sh
GH
−$0
25,000 sh
GH
+$100K
23,923 sh @ $4
GH
−$0
92,603 sh
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GH
−$1.5M
14,238 sh @ $105
GH
−$2.69M
25,263 sh @ $106
GH
−$1.04M
9,678 sh @ $107
GH
−$1.44M
13,272 sh @ $108
GH
−$1.09M
10,000 sh @ $109
GH
−$374.1K
3,400 sh @ $110
GH
−$1.44M
13,272 sh @ $108
GH
−$484.5K
4,613 sh @ $105
GH
−$1.38M
13,136 sh @ $105
GH
−$1.08M
10,599 sh @ $102
GH
−$1.13M
11,000 sh @ $103
GH
−$186.3K
1,801 sh @ $103
GH
−$4.87M
44,120 sh @ $110
GH
−$3.43M
30,880 sh @ $111
GH
−$788.6K
8,556 sh @ $92
GH
−$1.82M
19,477 sh @ $93
GH
−$1.6M
16,967 sh @ $94
GH
−$2.69M
28,267 sh @ $95
GH
−$166.1K
1,733 sh @ $96
GH
+$62.7K
15,000 sh @ $4
GH
−$854.9K
10,190 sh @ $84
GH
−$321.1K
3,800 sh @ $85
GH
−$86.8K
1,010 sh @ $86
GH
+$250.8K
60,000 sh @ $4
GH
−$417.6K
4,897 sh @ $85
Frequently asked questions
How is Talasaz AmirAli'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 Talasaz AmirAli'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.