MDU
+$0
157 sh
DURKIN MARIAN M
Director, Senior Vice President, Sr. Vice President, Senior VP, SVP, GC, CCO and Corp Secretar, SVP,General Counsel and CCO · SEC CIK 1332448Advertisement
Buy track record
How this insider's open-market purchases have performedThis insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
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Open-market buys
$0
0 trades
Open-market sells
$1.41M
6 trades
Net flow
−$1.41M
Net selling
Total filings
47
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstMDU
+$0
164 sh
MDU
+$0
7,274 sh
MDU
+$0
182 sh
MDU
+$0
175 sh
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MDU
+$0
165 sh
MDU
+$0
3,407 sh
AVA
−$42.2K
880 sh @ $48
AVA
+$0
4,992 sh
AVA
−$79.6K
1,608 sh @ $49
AVA
+$122K
2,385 sh @ $51
AVA
−$41.3K
869 sh @ $47
AVA
−$467.6K
10,000 sh @ $47
AVA
−$48.1K
1,000 sh @ $48
AVA
−$441.3K
10,004 sh @ $44
AVA
−$61.1K
1,500 sh @ $41
AVA
+$0
2,979 sh
AVA
+$0
1,848 sh
AVA
−$18.5K
446 sh @ $41
AVA
−$38.3K
896 sh @ $43
AVA
−$81.4K
1,550 sh @ $52
AVA
+$0
2,437 sh
AVA
−$31K
619 sh @ $50
AVA
+$0
9,695 sh
AVA
−$136.6K
2,647 sh @ $52
AVA
−$53K
1,030 sh @ $52
AVA
−$27.2K
700 sh @ $39
AVA
−$77.7K
2,000 sh @ $39
AVA
+$0
3,300 sh
AVA
−$63.9K
1,662 sh @ $38
Frequently asked questions
How is DURKIN MARIAN M'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 DURKIN MARIAN M'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.