ATKR
+$0
53 sh
Lamps Mark F.
Pres. Safety & Infrastructure, Pres. Mech. Prods. & Solutions · SEC CIK 1769052
Insider at
ATKR Atkore International Group Inc.
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.
Open-market buys
$0
0 trades
Open-market sells
$2.26M
20 trades
Net flow
−$2.26M
Net selling
Total filings
64
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstATKR
+$0
68 sh
ATKR
−$65.8K
1,000 sh @ $66
ATKR
+$0
68 sh
ATKR
−$68.6K
1,053 sh @ $65
ATKR
+$0
8,043 sh
ATKR
−$64.8K
1,000 sh @ $65
ATKR
−$39.2K
604 sh @ $65
ATKR
−$25.8K
397 sh @ $65
ATKR
+$0
51 sh
ATKR
−$59.4K
1,000 sh @ $59
ATKR
+$0
45 sh
ATKR
−$69.2K
1,000 sh @ $69
ATKR
+$0
47 sh
ATKR
−$32.5K
500 sh @ $65
ATKR
+$0
11 sh
ATKR
+$0
5,914 sh
ATKR
−$25.9K
291 sh @ $89
ATKR
+$0
4,165 sh
ATKR
−$194K
2,181 sh @ $89
ATKR
−$54.8K
593 sh @ $92
ATKR
−$48.3K
500 sh @ $97
ATKR
−$37.3K
390 sh @ $96
ATKR
+$0
18 sh
ATKR
−$47.7K
500 sh @ $95
ATKR
+$0
11 sh
ATKR
−$78.8K
500 sh @ $158
ATKR
+$0
11 sh
ATKR
−$654.4K
5,008 sh @ $131
ATKR
−$18.1K
138 sh @ $132
ATKR
−$118.9K
905 sh @ $131
ATKR
+$0
18,118 sh
ATKR
−$1.18M
9,014 sh @ $131
ATKR
−$37.2K
275 sh @ $135
ATKR
+$0
3,370 sh
ATKR
−$48.6K
367 sh @ $132
ATKR
+$44.4K
2,480 sh @ $18
ATKR
−$359K
2,480 sh @ $145
ATKR
−$342K
2,874 sh @ $119
ATKR
−$51.3K
433 sh @ $118
ATKR
−$68.6K
586 sh @ $117
ATKR
+$0
10,953 sh
ATKR
−$671.9K
5,735 sh @ $117
ATKR
−$95.8K
952 sh @ $101
ATKR
−$30.1K
288 sh @ $105
ATKR
+$0
2,213 sh
ATKR
−$96K
845 sh @ $114
ATKR
−$65.7K
638 sh @ $103
ATKR
−$89.6K
898 sh @ $100
ATKR
−$34.6K
320 sh @ $108
ATKR
−$55.3K
523 sh @ $106
ATKR
+$0
13,752 sh
ATKR
−$654K
6,180 sh @ $106
ATKR
−$34.8K
308 sh @ $113
ATKR
−$56.2K
503 sh @ $112
ATKR
−$73.6K
715 sh @ $103
ATKR
+$0
1,652 sh
ATKR
−$43.7K
630 sh @ $69
ATKR
−$63.9K
914 sh @ $70
ATKR
−$13.8K
324 sh @ $43
ATKR
−$20.6K
516 sh @ $40
ATKR
+$44.4K
2,480 sh @ $18
ATKR
−$83.1K
2,106 sh @ $39
ATKR
−$16.9K
496 sh @ $34
Frequently asked questions
How is Lamps Mark F.'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 Lamps Mark F.'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.