UP
+$0
24,305 sh
SUMME GREGORY L
Director · SEC CIK 1143422Advertisement
Buy track record
How this insider's open-market purchases have performed14%
of buys now in profit
1 up · 6 down
Avg return since buy−19.5%
Median return−24.8%
Best trade+2.7%
Worst trade−27.0%
Buys scored7
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+2.7%
71% won · 7 trades
After 3 months
−0.8%
43% won · 7 trades
After 6 months
−9.7%
17% won · 6 trades
After 12 months
−35.0%
0% won · 4 trades
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Feb 12, 2026 | AVTR | $9 | $940K | +33% | −13.6% | −10.6% | — | — | +2.7% | |
| Oct 30, 2025 | AVTR | $11 | $1.13M | +50% | +6.3% | −1.2% | −26.7% | — | −15.0% | |
| Aug 21, 2025 | AVTR | $13 | $1.26M | +100% | −0.9% | −8.3% | −29.2% | — | −25.2% | |
| May 23, 2025 | AVTR | $13 | $375K | +43% | +5.8% | +4.1% | −9.3% | −35.9% | −26.0% | |
| May 22, 2025 | AVTR | $13 | $253K | +40% | +4.4% | +3.2% | −10.5% | −36.9% | −27.0% | |
| May 7, 2025 | AVTR | $12 | $300K | +100% | +12.6% | −4.7% | −3.3% | −30.4% | −21.4% | |
| Apr 28, 2025 | AVTR | $13 | $312.5K | NEW | +4.3% | +12.0% | +20.7% | −37.1% | −24.8% |
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 7 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$4.56M
7 trades
Open-market sells
$3.27M
4 trades
Net flow
+$1.29M
Net buying
Total filings
43
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstAVTR
+$0
25,270 sh
GRAL
+$31.4K
631 sh @ $50
AVTR
Summe Gregory L, AVTR's Director, spent $940K of their own money on 100,000 shares at $9, growing their stake 33%.
+$940K
100,000 sh @ $9
GRAL
+$32.1K
329 sh @ $97
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AVTR
Summe Gregory L, AVTR's Director, spent $1.13M of their own money on 100,000 shares at $11, growing their stake 50%.
+$1.13M
100,000 sh @ $11
GRAL
+$32.1K
425 sh @ $76
AVTR
Summe Gregory L, AVTR's Director, spent $1.26M of their own money on 100,000 shares at $13, growing their stake 100%.
+$1.26M
100,000 sh @ $13
GRAL
+$31.8K
825 sh @ $39
UP
+$0
148,026 sh
NXPI
+$0
822 sh
NXPI
−$79.9K
407 sh @ $196
GRAL
+$250K
6,082 sh @ $41
AVTR
Summe Gregory L, AVTR's Director, spent $375K of their own money on 30,000 shares at $13, growing their stake 43%.
+$375K
30,000 sh @ $13
AVTR
Summe Gregory L, AVTR's Director, spent $253K of their own money on 20,000 shares at $13, growing their stake 40%.
+$253K
20,000 sh @ $13
AVTR
+$0
17,100 sh
AVTR
Summe Gregory L, AVTR's Director, spent $300K of their own money on 25,000 shares at $12, growing their stake 100%.
+$300K
25,000 sh @ $12
AVTR
Summe Gregory L, AVTR's Director, spent $312.5K of their own money on 25,000 shares at $13, opening a brand-new position.
+$312.5K
25,000 sh @ $13
GRAL
+$31.4K
1,212 sh @ $26
STT
−$1.08M
10,815 sh @ $100
STT
−$300K
3,000 sh @ $100
GRAL
+$32.1K
1,828 sh @ $18
GRAL
+$4K
296 sh @ $14
GRAL
+$23.2K
1,656 sh @ $14
UP
+$0
87,688 sh
GRAL
+$0
26,470 sh
NXPI
+$0
1,211 sh
NXPI
−$167.8K
600 sh @ $280
STT
+$0
2,514 sh
AVTR
+$0
8,477 sh
Frequently asked questions
How is SUMME GREGORY L'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 SUMME GREGORY L'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.