MarketPeel
Insider Trading Intelligence
WT

William N. JR Thorndike

PRM
DIRECTOR · PERIMETER SOLUTIONS, INC. · CIK 0001437827
FILING MIX · LIFETIME63%/37%
BUYS
19
SELLS
11
TOTAL VALUE
$19.10M
COMPANIES
2
ACTIVE SINCE
May 2020
HOLDINGS NOW
8,971,011
AVG SELL PX
$24.31
TRADE KIND
SHOWING 30 / 30
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
8 backtested trades · 8 horizons · 25 pending
Forward-return performance of every backtestable P/S trade by William N. JR Thorndike, 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
7d8+100.00%-5.45%-0.99%-4.46%-3.63%
14d8+100.00%-9.23%-2.49%-6.74%-8.04%
30d8+12.50%+4.05%-1.40%+7.89%+7.78%
60d8+0.00%+30.57%+7.16%+22.92%+24.63%
90d8(1 pending)+0.00%+34.24%+8.91%+24.15%+24.15%
180d8(8 pending)
1y8(8 pending)
2y8(8 pending)
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
PRM · 8,535,656 shares · as of Mar 11, 2026
02,296,4144,592,8286,889,2429,185,65620222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
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 · 19 buys / 11 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
8,770435,355May 7, 2026May 11, 2026View →
CNX
CNX RESOURCES CORP
PURCHASE
83,097$13.19$1.10M455,385May 4, 2026May 6, 2026View →
CNX
CNX RESOURCES CORP
SALE
28,800$38.25$1.10M426,585May 4, 2026May 6, 2026View →
CNX
CNX RESOURCES CORP
SALE
83,0970May 4, 2026May 6, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
SALE
100,000$23.18$2.32M8,535,656Mar 11, 2026Mar 11, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
SALE
100,000$23.63$2.36M8,635,656Mar 10, 2026Mar 11, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
SALE
34,957$23.85$833.7K8,735,656Mar 9, 2026Mar 11, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
SALE
90,043$23.18$2.09M8,770,613Mar 9, 2026Mar 11, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
SALE
100,000$23.63$2.36M8,860,656Mar 6, 2026Mar 6, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
SALE
100,000$24.06$2.41M8,960,656Mar 5, 2026Mar 6, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
SALE
125,000$24.26$3.03M9,060,656Mar 4, 2026Mar 6, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
PURCHASEGRANT
Stock grant
5,582,4929,185,656Mar 3, 2026Mar 5, 2026View →
PRM
PERIMETER SOLUTIONS, INC.
SALEGRANT
Gift
673,6853,603,164Dec 9, 2025Dec 11, 2025View →
PRM
PERIMETER SOLUTIONS, INC.
PURCHASE
746,7674,276,849Jun 20, 2025Jun 24, 2025View →
PRM
PERIMETER SOLUTIONS, INC.
SALE
500,0000Nov 6, 2024Nov 8, 2024View →
PRM
PERIMETER SOLUTIONS, INC.
PURCHASE
125,000$12.00$1.50M3,530,082Nov 6, 2024Nov 8, 2024View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
17,242372,288May 2, 2024May 6, 2024View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
11,05811,058May 2, 2024May 6, 2024View →
PRM
PERIMETER SOLUTIONS, INC.
PURCHASE
667,5363,405,082Mar 14, 2024Mar 18, 2024View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
27,342355,046May 4, 2023May 8, 2023View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
16,28916,289May 4, 2023May 8, 2023View →
PRM
PERIMETER SOLUTIONS, INC.
PURCHASE
696,4462,737,546Feb 17, 2023Feb 22, 2023View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
10,85010,850May 5, 2022May 9, 2022View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
19,503327,704May 5, 2022May 9, 2022View →
PRM
PERIMETER SOLUTIONS, INC.
PURCHASE
1,541,1002,041,100Apr 29, 2022May 3, 2022View →
PRM
PERIMETER SOLUTIONS, INC.
PURCHASE
500,000500,000Nov 8, 2021Nov 10, 2021View →
PRM
PERIMETER SOLUTIONS, INC.
PURCHASE
500,000500,000Nov 8, 2021Nov 10, 2021View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
37,620308,201May 6, 2021May 10, 2021View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
50,802270,581May 6, 2020May 8, 2020View →
CNX
CNX RESOURCES CORP
PURCHASEGRANT
Stock grant
18,50318,503May 6, 2020May 8, 2020View →
Other insiders · PRM
Loading peer insiders…
About this filer
CIK 0001437827
ROLE
Director
PRIMARY
PRM
COMPANIES
2
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001437827DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback