ALAB
−$837.5K
7,815 sh @ $107
Dyckerhoff Stefan A
Director, 10% Owner, EVP Platform Systems Division, EVP Engineering, EVP and GM of IPG · SEC CIK 1484394Advertisement
Buy track record
How this insider's open-market purchases have performed50%
of buys now in profit
2 up · 2 down
Avg return since buy−14.8%
Median return−14.8%
Best trade+0.9%
Worst trade−30.5%
Buys scored4 (+5 n/a)
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+0.0%
0% won · 4 trades
After 3 months
−4.7%
0% won · 4 trades
After 6 months
+0.0%
0% won · 4 trades
After 12 months
+0.9%
50% won · 4 trades
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2017 | MATR | $4 | $742.8K | +24% | +0.0% | −9.4% | +0.0% | +1.9% | +0.9% | |
| Jun 1, 2017 | MATR | $4 | $3.3K | +4.3% | +0.0% | −9.4% | +0.0% | +1.9% | +0.9% | |
| Dec 3, 2013 | MATR | $4 | $880.8K | +10% | +0.0% | +0.0% | +0.0% | +0.0% | −30.5% | |
| Dec 3, 2013 | MATR | $4 | $14.9K | NEW | +0.0% | +0.0% | +0.0% | +0.0% | −30.5% |
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 4 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$5.91M
9 trades
Open-market sells
$66.46M
57 trades
Net flow
−$60.55M
Net selling
Total filings
84
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstALAB
−$837.4K
7,814 sh @ $107
ALAB
−$696.4K
6,638 sh @ $105
ALAB
−$27.9K
266 sh @ $105
ALAB
−$1.17M
11,083 sh @ $106
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ALAB
−$46.9K
443 sh @ $106
ALAB
−$778.6K
7,279 sh @ $107
ALAB
−$31.1K
291 sh @ $107
ALAB
−$585.9K
6,148 sh @ $95
ALAB
−$17.86M
197,297 sh @ $91
ALAB
−$3.31M
36,202 sh @ $91
ALAB
−$698.6K
7,583 sh @ $92
ALAB
−$105.7K
1,124 sh @ $94
ALAB
−$147.2K
1,541 sh @ $96
ALAB
−$294.6K
3,051 sh @ $97
ALAB
−$48.6K
499 sh @ $97
ALAB
−$495.6K
5,628 sh @ $88
ALAB
−$311.9K
3,509 sh @ $89
ALAB
−$3.68M
40,863 sh @ $90
ALAB
−$591K
6,567 sh @ $90
ALAB
+$0
4,765 sh
ALAB
+$0
210,013 sh
FTSV
+$0
12,116 sh
FTSV
Dyckerhoff Stefan A, FTSV's Insider, spent $2.16M of their own money on 134,735 shares at $16, growing their stake 5%.
+$2.16M
134,735 sh @ $16
FTSV
Dyckerhoff Stefan A, FTSV's Insider, spent $30.6K of their own money on 1,915 shares at $16, growing their stake 5%.
+$30.6K
1,915 sh @ $16
PSTG
+$0
25,520 sh
PSTG
−$427.7K
25,520 sh @ $17
PSTG
+$0
25,407 sh
PSTG
−$433.2K
25,407 sh @ $17
YEXT
−$0
8.61M sh
Frequently asked questions
How is Dyckerhoff Stefan A'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 Dyckerhoff Stefan A'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.