Rosebrough Walter M Jr

Director, President & CEO · SEC CIK 1413087
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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−64.1%
Median return−64.1%
Best trade−64.1%
Worst trade−64.1%
Buys scored1
Average return by holding period — separates good entry timing from riding one long winner
After 1 month +6.7% 100% won · 1 trade
After 3 months −3.4% 0% won · 1 trade
After 6 months +10.3% 100% won · 1 trade
After 12 months −11.0% 0% won · 1 trade
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
Aug 7, 2018 VREX $28 $283.9K +250% +6.7% −3.4% +10.3% −11.0% −64.1%
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
$283.9K
1 trades
Open-market sells
$83.36M
41 trades
Net flow
−$83.08M
Net selling
Total filings
86
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
STE
Disposition to issuer Rosebrough Walter M Jr · Director, President & CEO · Disposition to issuer · filed Mar 28, 2019 ΔOwn −100%
−$0
13,000 sh
STE
Option exercise Rosebrough Walter M Jr · Director, President & CEO · Option exercise · filed Mar 22, 2019 ΔOwn +102%
+$2.27M
50,000 sh @ $45
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Mar 22, 2019 ΔOwn −51%

Rosebrough Walter M Jr sold $6.25M of STE, trimming their stake 51%.

−$6.25M
50,000 sh @ $125
STE
Option exercise Rosebrough Walter M Jr · Director, President & CEO · Option exercise · filed Dec 6, 2018 ΔOwn +37%
+$538.9K
18,000 sh @ $30
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Dec 6, 2018 ΔOwn −27%

Rosebrough Walter M Jr sold $2.16M of STE, trimming their stake 27%.

−$2.16M
18,000 sh @ $120
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STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Nov 8, 2018 ΔOwn −36%

Rosebrough Walter M Jr sold $1.21M of STE, trimming their stake 36%.

−$1.21M
10,000 sh @ $121
VREX
Buy Rosebrough Walter M Jr · Director · Open-market purchase · filed Aug 9, 2018 ΔOwn +250%

Rosebrough Walter M Jr, VREX's Director, spent $283.9K of their own money on 10,000 shares at $28, growing their stake 250%.

+$283.9K
10,000 sh @ $28
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Jul 16, 2018 ΔOwn −26%

Rosebrough Walter M Jr sold $1.11M of STE, trimming their stake 26%.

−$1.11M
10,000 sh @ $111
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Jun 4, 2018 ΔOwn −14%

Rosebrough Walter M Jr sold $895.3K of STE, trimming their stake 14%.

−$895.3K
8,571 sh @ $104
STE
Tax withholding Rosebrough Walter M Jr · Director, President & CEO · Tax withholding · filed Jun 4, 2018 ΔOwn −4.0%
−$219.6K
2,100 sh @ $105
STE
Tax withholding Rosebrough Walter M Jr · Director, President & CEO · Tax withholding · filed May 31, 2018 ΔOwn −5.6%
−$297.2K
2,842 sh @ $105
STE
Tax withholding Rosebrough Walter M Jr · Director, President & CEO · Tax withholding · filed May 31, 2018 ΔOwn −4.6%
−$231.2K
2,211 sh @ $105
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed May 31, 2018 ΔOwn −17%

Rosebrough Walter M Jr sold $1.1M of STE, trimming their stake 17%.

−$1.1M
10,697 sh @ $103
STE
Tax withholding Rosebrough Walter M Jr · Director, President & CEO · Tax withholding · filed May 31, 2018 ΔOwn −3.1%
−$169.1K
1,626 sh @ $104
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed May 10, 2018 ΔOwn −14%

Rosebrough Walter M Jr sold $1.01M of STE, trimming their stake 14%.

−$1.01M
10,000 sh @ $101
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Mar 13, 2018 ΔOwn −16%

Rosebrough Walter M Jr sold $955K of STE, trimming their stake 16%.

−$955K
10,000 sh @ $96
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Oct 6, 2017 ΔOwn −14%

Rosebrough Walter M Jr sold $905K of STE, trimming their stake 14%.

−$905K
10,000 sh @ $91
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Aug 17, 2017 ΔOwn −12%

Rosebrough Walter M Jr sold $856.9K of STE, trimming their stake 12%.

−$856.9K
10,000 sh @ $86
STE
Sell Rosebrough Walter M Jr · Director, President & CEO · Open-market sale · filed Jun 5, 2017 ΔOwn −10%

Rosebrough Walter M Jr sold $800.5K of STE, trimming their stake 10%.

−$800.5K
10,000 sh @ $80

Frequently asked questions

How is Rosebrough Walter M Jr'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 Rosebrough Walter M Jr'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.