Foresite Capital Management I, LLC

10% Owner · SEC CIK 1594912
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Buy track record

How this insider's open-market purchases have performed
0%
of buys now in profit
0 up · 1 down
Avg return since buy−45.3%
Median return−45.3%
Best trade−45.3%
Worst trade−45.3%
Buys scored1 (+20 n/a)
Average return by holding period — separates good entry timing from riding one long winner
After 1 month −4.7% 0% won · 1 trade
After 3 months +16.7% 100% won · 1 trade
After 6 months +13.0% 100% won · 1 trade
After 12 months +129.2% 100% won · 1 trade
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
Sep 12, 2019 TXG $39 $7.31M NEW −4.7% +16.7% +13.0% +129.2% −45.3%
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
$39.35M
21 trades
Open-market sells
$182.47M
12 trades
Net flow
−$143.12M
Net selling
Total filings
43
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
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TXG
Buy Foresite Capital Management I, LLC · 10% Owner · Open-market purchase · filed Sep 16, 2019 ΔOwn NEW

Foresite Capital Management I, Llc, TXG's 10% owner, spent $7.31M of their own money on 187,500 shares at $39, opening a brand-new position.

+$7.31M
187,500 sh @ $39
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Sep 6, 2019 ΔOwn +0.7%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $289.2K of their own money on 15,700 shares at $18, growing their stake 1%.

+$289.2K
15,700 sh @ $18
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Sep 6, 2019 ΔOwn +6.9%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $1.68M of their own money on 90,900 shares at $18, growing their stake 7%.

+$1.68M
90,900 sh @ $18
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Sep 4, 2019 ΔOwn +1.5%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $716.8K of their own money on 34,900 shares at $21, growing their stake 2%.

+$716.8K
34,900 sh @ $21
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Sep 4, 2019 ΔOwn +0.7%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $323.9K of their own money on 15,100 shares at $21, growing their stake 1%.

+$323.9K
15,100 sh @ $21
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Sep 4, 2019 ΔOwn +1.1%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $534K of their own money on 25,000 shares at $21, growing their stake 1%.

+$534K
25,000 sh @ $21
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Aug 23, 2019 ΔOwn +1.7%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $897K of their own money on 38,300 shares at $23, growing their stake 2%.

+$897K
38,300 sh @ $23
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Aug 20, 2019 ΔOwn +2.3%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $1.16M of their own money on 50,000 shares at $23, growing their stake 2%.

+$1.16M
50,000 sh @ $23
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Aug 20, 2019 ΔOwn +4.9%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $2.42M of their own money on 100,000 shares at $24, growing their stake 5%.

+$2.42M
100,000 sh @ $24
AERI
Buy Foresite Capital Management II, LLC · 10% Owner · Open-market purchase · filed Aug 14, 2019 ΔOwn +5.1%

Foresite Capital Management Ii, Llc, AERI's 10% owner, spent $2.37M of their own money on 100,000 shares at $24, growing their stake 5%.

+$2.37M
100,000 sh @ $24

Frequently asked questions

How is Foresite Capital Management I, LLC'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 Foresite Capital Management I, LLC'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.