USA
Brock Thomas W, USA's Insider, spent $33.4K of their own money on 5,000 shares at $7, growing their stake 6%.
+$33.4K
5,000 sh @ $7
BROCK THOMAS W
Director, Chief Executive Officer · SEC CIK 1280303Advertisement
Buy track record
How this insider's open-market purchases have performed100%
of buys now in profit
20 up · 0 down
Avg return since buy+101.2%
Median return+65.5%
Best trade+214.3%
Worst trade+48.6%
Buys scored20 (+1 n/a)
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+0.6%
20% won · 20 trades
After 3 months
+5.0%
40% won · 20 trades
After 6 months
+9.6%
40% won · 20 trades
After 12 months
+14.6%
35% won · 20 trades
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 2, 2020 | USA | $7 | $33.4K | +6.3% | +0.6% | +14.6% | +38.8% | +32.4% | +48.6% | |
| Nov 9, 2020 | USA | $6 | $161.2K | +45% | +8.4% | +20.1% | +37.3% | +46.6% | +59.2% | |
| Aug 31, 2020 | USA | $6 | $38.7K | +13% | −2.4% | +10.8% | +25.2% | +51.9% | +64.6% | |
| Mar 31, 2020 | ASG | $4 | $43.5K | +20% | +15.1% | +39.9% | +60.8% | +102.2% | +98.7% | |
| Apr 23, 2019 | USA | $6 | $4.5K | +39% | −1.9% | +5.1% | +5.7% | −9.0% | +84.6% | |
| Feb 20, 2019 | USA | $6 | $4.9K | +80% | +0.5% | +3.4% | +5.9% | +26.8% | +95.3% | |
| Nov 13, 2018 | USA | $6 | $6.2K | NEW | −5.5% | +3.2% | +6.7% | +21.0% | +103.8% | |
| Nov 6, 2018 | USA | $6 | $91.8K | +44% | −2.5% | +2.7% | +11.4% | +19.8% | +104.1% | |
| Aug 8, 2011 | EDF | $24 | $29.4K | +24% | +0.0% | +0.0% | +0.0% | +0.0% | +65.5% | |
| Aug 8, 2011 | EDF | $24 | $11.8K | +7.8% | +0.0% | +0.0% | +0.0% | +0.0% | +65.5% | |
| Mar 15, 2011 | EDF | $23 | $52.9K | +115% | +0.0% | +0.0% | +0.0% | +0.0% | +65.5% | |
| Mar 15, 2011 | EDF | $23 | $4.6K | +4.7% | +0.0% | +0.0% | +0.0% | +0.0% | +65.5% | |
| Mar 15, 2011 | EDF | $23 | $11.4K | +11% | +0.0% | +0.0% | +0.0% | +0.0% | +65.5% | |
| Mar 10, 2011 | EDF | $24 | $16.8K | NEW | +0.0% | +0.0% | +0.0% | +0.0% | +65.5% | |
| Mar 10, 2011 | EDF | $24 | $21.6K | +129% | +0.0% | +0.0% | +0.0% | +0.0% | +65.5% | |
| Mar 10, 2011 | EDF | $24 | $9.6K | +25% | +0.0% | +0.0% | +0.0% | +0.0% | +65.5% | |
| Jan 8, 2008 | USA | $6 | $8.2K | +9.7% | +0.0% | +0.0% | +0.0% | +0.0% | +214.3% | |
| Sep 12, 2006 | ASG | $5 | $21.6K | +27% | +0.0% | +0.0% | +0.0% | +0.0% | +206.6% | |
| Sep 11, 2006 | ASG | $5 | $78.2K | NEW | +0.0% | +0.0% | +0.0% | +0.0% | +206.6% | |
| Sep 11, 2006 | USA | $7 | $100.2K | NEW | +0.0% | +0.0% | +0.0% | +0.0% | +214.3% |
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 20 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$847.5K
21 trades
Open-market sells
$14.9K
1 trades
Net flow
+$832.6K
Net buying
Total filings
28
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstUSA
Brock Thomas W, USA's Insider, spent $161.2K of their own money on 25,000 shares at $6, growing their stake 45%.
+$161.2K
25,000 sh @ $6
USA
Brock Thomas W, USA's Insider, spent $38.7K of their own money on 6,254 shares at $6, growing their stake 13%.
+$38.7K
6,254 sh @ $6
USA
−$14.9K
2,568 sh @ $6
ASG
Brock Thomas W, ASG's Director, spent $43.5K of their own money on 10,024 shares at $4, growing their stake 20%.
+$43.5K
10,024 sh @ $4
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USA
Brock Thomas W, USA's Insider, spent $4.5K of their own money on 700 shares at $6, growing their stake 39%.
+$4.5K
700 sh @ $6
USA
Brock Thomas W, USA's Insider, spent $4.9K of their own money on 800 shares at $6, growing their stake 80%.
+$4.9K
800 sh @ $6
USA
Brock Thomas W, USA's Insider, spent $6.2K of their own money on 1,000 shares at $6, opening a brand-new position.
+$6.2K
1,000 sh @ $6
USA
Brock Thomas W, USA's Insider, spent $91.8K of their own money on 15,000 shares at $6, growing their stake 44%.
+$91.8K
15,000 sh @ $6
SBY
−$0
171,750 sh
SBY
+$0
17,836 sh
SBY
+$0
3,222 sh
SBY
+$0
3,199 sh
SBY
+$0
4,164 sh
SBY
Brock Thomas W, SBY's Director, spent $96.9K of their own money on 5,000 shares at $19, growing their stake 185%.
+$96.9K
5,000 sh @ $19
SBY
+$0
2,703 sh
EDF
Brock Thomas W, EDF's Insider, spent $29.4K of their own money on 1,250 shares at $24, growing their stake 24%.
+$29.4K
1,250 sh @ $24
EDF
Brock Thomas W, EDF's Insider, spent $11.8K of their own money on 500 shares at $24, growing their stake 8%.
+$11.8K
500 sh @ $24
EDF
Brock Thomas W, EDF's Insider, spent $52.9K of their own money on 2,300 shares at $23, growing their stake 115%.
+$52.9K
2,300 sh @ $23
EDF
Brock Thomas W, EDF's Insider, spent $4.6K of their own money on 200 shares at $23, growing their stake 5%.
+$4.6K
200 sh @ $23
EDF
Brock Thomas W, EDF's Insider, spent $11.4K of their own money on 500 shares at $23, growing their stake 11%.
+$11.4K
500 sh @ $23
EDF
Brock Thomas W, EDF's Insider, spent $16.8K of their own money on 700 shares at $24, opening a brand-new position.
+$16.8K
700 sh @ $24
EDF
Brock Thomas W, EDF's Insider, spent $21.6K of their own money on 900 shares at $24, growing their stake 129%.
+$21.6K
900 sh @ $24
EDF
Brock Thomas W, EDF's Insider, spent $9.6K of their own money on 400 shares at $24, growing their stake 25%.
+$9.6K
400 sh @ $24
USA
Brock Thomas W, USA's Director, spent $8.2K of their own money on 1,461 shares at $6, growing their stake 10%.
+$8.2K
1,461 sh @ $6
ASG
Brock Thomas W, ASG's Director, spent $21.6K of their own money on 4,400 shares at $5, growing their stake 27%.
+$21.6K
4,400 sh @ $5
ASG
Brock Thomas W, ASG's Director, spent $78.2K of their own money on 16,100 shares at $5, opening a brand-new position.
+$78.2K
16,100 sh @ $5
USA
Brock Thomas W, USA's Director, spent $100.2K of their own money on 13,500 shares at $7, opening a brand-new position.
+$100.2K
13,500 sh @ $7
Frequently asked questions
How is BROCK THOMAS W'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 BROCK THOMAS W'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.