MBX
Heron Patrick J, MBX's 10% owner, spent $12M of their own money on 666,666 shares at $18, growing their stake 15%.
+$12M
666,666 sh @ $18
Heron Patrick J
Director, 10% Owner, Chief Executive Officer · SEC CIK 1790879Advertisement
Buy track record
How this insider's open-market purchases have performed100%
of buys now in profit
2 up · 0 down
Avg return since buy+83.4%
Median return+83.4%
Best trade+102.8%
Worst trade+64.0%
Buys scored2 (+3 n/a)
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+5.7%
50% won · 2 trades
After 3 months
+32.4%
50% won · 2 trades
After 6 months
+1.2%
50% won · 2 trades
After 12 months
−55.0%
0% won · 1 trade
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 26, 2025 | MBX | $18 | $12M | +15% | −0.4% | +76.5% | +61.6% | — | +102.8% | |
| Sep 16, 2024 | MBX | $16 | $10M | +16% | +11.7% | −11.6% | −59.1% | −55.0% | +64.0% |
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 2 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$62.13M
5 trades
Open-market sells
$0
0 trades
Net flow
+$62.13M
Net buying
Total filings
10
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstHLVX
−$16.64M
8.54M sh @ $2
HLVX
−$33.5K
17,199 sh @ $2
MBX
+$0
3.93M sh
MBX
Frazier Life Sciences X, L.p., MBX's 10% owner, spent $10M of their own money on 625,000 shares at $16, growing their stake 16%.
+$10M
625,000 sh @ $16
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HLVX
Frazier Life Sciences X, L.p., HLVX's 10% owner, spent $128.3K of their own money on 8,850 shares at $15.
+$128.3K
8,850 sh @ $15
HLVX
+$37.21M
2.74M sh @ $14
HLVX
Frazier Life Sciences X, L.p., HLVX's 10% owner, spent $30M of their own money on 1.76M shares at $17, growing their stake 26%.
+$30M
1.76M sh @ $17
FLAC
+$5.01M
501,000 sh @ $10
FLAC
Topper James N, FLAC's CEO, spent $10M of their own money on 1M shares at $10, opening a brand-new position.
+$10M
1M sh @ $10
Frequently asked questions
How is Heron Patrick J'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 Heron Patrick J'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.