MarketPeel
Insider Trading Intelligence
GA

Greg L. Armstrong

NOV
DIRECTOR · NOV INC. · CIK 0001184537
FILING MIX · LIFETIME83%/17%
BUYS
10
SELLS
2
TOTAL VALUE
$1.84M
COMPANIES
2
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
1,876,955
AVG SELL PX
$18.99
TRADE KIND
SHOWING 12 / 12
Trades · vs SPY
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Performance · forward returns vs SPY
5 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Greg L. Armstrong, 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
7d5+40.00%+1.08%-1.95%+3.03%-5.23%
14d5+40.00%-3.69%+0.42%-4.11%-14.53%
30d5+40.00%+3.09%+3.02%+0.07%-24.79%
60d5+60.00%+40.02%+9.22%+30.79%+11.42%
90d5+60.00%+66.30%+16.14%+50.16%+42.45%
180d5+60.00%+18.64%+23.91%-5.27%-27.38%
1y5+60.00%+56.12%+45.12%+11.00%-4.34%
2y5+80.00%+88.91%+63.87%+25.04%+23.95%
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
NOV · 111,143 shares · as of May 20, 2025
027,78655,57283,357111,14320212022202320242025SHARES 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
FLOW · 10 buys / 2 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
PAGP
PLAINS GP HOLDINGS LP
SALEGRANT
Gift
100,0001,765,812Aug 11, 2025Aug 12, 2025View →
NOV
NOV INC.
PURCHASE
6,869111,143May 20, 2025May 22, 2025View →
NOV
NOV INC.
PURCHASEGRANT
Stock grant
9,550104,274May 15, 2024May 16, 2024View →
NOV
NOV INC.
PURCHASEGRANT
Stock grant
12,00094,724May 17, 2023May 18, 2023View →
NOV
NOV INC.
SALE
10,381$18.99$197.1K82,724Aug 29, 2022Aug 30, 2022View →
NOV
NOV INC.
PURCHASEGRANT
Stock grant
8,47393,105May 24, 2022May 26, 2022View →
NOV
NOV INC.
PURCHASEGRANT
Stock grant
9,81984,632May 19, 2021May 20, 2021View →
NOV
NOV INC.
PURCHASEGRANT
Stock grant
12,46274,813May 20, 2020May 21, 2020View →
PAGP
PLAINS GP HOLDINGS LP
PURCHASE
100,000$3.80$380.0K1,865,812Mar 18, 2020Mar 18, 2020View →
PAGP
PLAINS GP HOLDINGS LP
PURCHASE
10,000$7.50$75.0K1,755,812Mar 12, 2020Mar 16, 2020View →
PAGP
PLAINS GP HOLDINGS LP
PURCHASE
10,000$7.00$70.0K1,765,812Mar 12, 2020Mar 16, 2020View →
PAGP
PLAINS GP HOLDINGS LP
PURCHASE
70,187$15.90$1.12M1,745,812Feb 24, 2020Feb 24, 2020View →
Other insiders · NOV
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About this filer
CIK 0001184537
ROLE
Director
PRIMARY
NOV
COMPANIES
2
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001184537DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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