MarketPeel
Insider Trading Intelligence
JK

Justin A. Kershaw

ATKR
DIRECTOR · ATKORE INC. · CIK 0001713397
FILING MIX · LIFETIME85%/15%
BUYS
17
SELLS
3
TOTAL VALUE
$967.6K
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
18,684
AVG SELL PX
$120.59
TRADE KIND
SHOWING 20 / 20
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 4 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Justin A. Kershaw, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d3+33.33%+1.87%+0.26%+1.61%+1.67%
14d3+0.00%+3.19%+0.24%+3.27%+3.27%
30d3+33.33%+3.79%-0.87%+4.66%+7.36%
60d3+100.00%-9.51%+0.87%-10.38%-9.72%
90d3(1 pending)+100.00%-17.50%+1.51%-19.01%-19.01%
180d3(1 pending)+50.00%-21.63%+8.28%-29.91%-29.91%
1y3(1 pending)+50.00%-30.80%+14.97%-45.78%-45.78%
2y3(1 pending)+100.00%-56.48%+39.73%-96.20%-96.20%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ATKR · 18,683.883 shares · as of May 29, 2026
05,35210,70416,05721,409202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 17 buys / 3 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
74.15818,683.883May 29, 2026Jun 2, 2026View →
ATKR
ATKORE INC.
SALE
2,799$73.67$206.2K18,609.724May 8, 2026May 8, 2026View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
94.41921,408.724Feb 27, 2026Mar 3, 2026View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
2,27521,314.305Jan 29, 2026Feb 2, 2026View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
93.10119,039.305Dec 17, 2025Dec 19, 2025View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
101.38918,946.204Aug 29, 2025Sep 3, 2025View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
88.08418,844.815May 28, 2025May 30, 2025View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
92.08818,756.732Feb 28, 2025Mar 3, 2025View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
1,79518,664.644Jan 30, 2025Jan 31, 2025View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
60.43816,869.644Dec 16, 2024Dec 17, 2024View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
56.03116,809.206Aug 30, 2024Nov 19, 2024View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
34.51616,753.176May 31, 2024Nov 19, 2024View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
32.6616,718.66Mar 15, 2024Nov 19, 2024View →
ATKR
ATKORE INC.
SALE
1,099$171.77$188.8K16,686Mar 13, 2024Mar 13, 2024View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
95617,785Jan 30, 2024Jan 31, 2024View →
ATKR
ATKORE INC.
SALE
4,126$138.78$572.6K16,829Feb 3, 2023Feb 7, 2023View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
1,09920,955Jan 27, 2023Jan 31, 2023View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
1,49119,856Jan 27, 2022Jan 27, 2022View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
2,59718,365Jan 28, 2021Feb 1, 2021View →
ATKR
ATKORE INC.
PURCHASEGRANT
Stock grant
2,68215,768Jan 30, 2020Jan 31, 2020View →
Other insiders · ATKR
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About this filer
CIK 0001713397
ROLE
Director
PRIMARY
ATKR
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001713397DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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