Cohn Charles K.

Director, Chief Executive Officer, 10% Owner · SEC CIK 1880171
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Buy track record

How this insider's open-market purchases have performed
2%
of buys now in profit
1 up · 44 down
Avg return since buy−29.5%
Median return−32.6%
Best trade+1.8%
Worst trade−54.9%
Buys scored45
Average return by holding period — separates good entry timing from riding one long winner
After 1 month +10.1% 47% won · 43 trades
After 3 months +2.1% 37% won · 43 trades
After 6 months +4.5% 44% won · 43 trades
After 12 months −10.5% 18% won · 22 trades
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
Jun 11, 2026 NRDY $1 $250.5K +118% −10.7%
Jun 10, 2026 NRDY $1 $199.3K NEW −4.8%
Dec 16, 2025 NRDY $1 $240.6K +0.6% −15.8% −24.3% −30.0% −28.7%
Dec 15, 2025 NRDY $1 $236.7K +0.5% −18.1% −28.5% −26.4% −32.6%
Dec 12, 2025 NRDY $1 $248.9K +0.6% −21.5% −31.9% −26.1% −36.6%
Dec 11, 2025 NRDY $1 $248.4K +0.6% −20.9% −30.5% −28.4% −36.1%
Dec 10, 2025 NRDY $1 $244.9K +0.5% −21.5% −32.0% −33.4% −36.6%
Dec 9, 2025 NRDY $1 $253.7K +0.6% −28.2% −37.7% −37.6% −39.7%
Dec 8, 2025 NRDY $1 $245.4K +0.6% −19.1% −32.5% −38.1% −34.7%
Dec 5, 2025 NRDY $1 $249.2K +0.6% −18.9% −31.0% −37.6% −35.2%
Dec 4, 2025 NRDY $1 $256.1K +0.6% −21.3% −31.6% −39.0% −37.1%
Dec 3, 2025 NRDY $1 $118.3K +0.3% −18.3% −30.4% −40.2% −34.7%
Dec 3, 2025 NRDY $1 $120.6K +0.3% −18.3% −30.4% −40.2% −34.7%
Dec 2, 2025 NRDY $1 $249.6K +18% −15.0% −21.7% −32.5% −28.7%
Dec 1, 2025 NRDY $1 $249.5K +21% −17.1% −23.6% −32.9% −30.4%
Nov 28, 2025 NRDY $1 $106.5K +10.0% −20.1% −29.9% −37.8% −36.1%
Nov 26, 2025 NRDY $1 $181K +10% −10.4% −25.8% −33.5% −31.5%
Nov 25, 2025 NRDY $1 $138.3K +9.3% −6.7% −22.5% −30.8% −28.7%
Nov 24, 2025 NRDY $1 $250.7K +23% +11.2% −16.5% −22.3% −20.0%
Nov 21, 2025 NRDY $1 $198.4K +22% +23.3% −10.7% −25.2% −16.9%
Nov 21, 2025 NRDY $1 $74.9K +0.2% +23.3% −10.7% −25.2% −16.9%
Nov 20, 2025 NRDY $1 $199.4K +0.7% +31.9% −0.3% −15.7% −11.1%
Nov 19, 2025 NRDY $1 $246.2K +0.9% +31.3% +2.3% −17.7% −7.9%
Dec 16, 2024 NRDY $2 $3.98M +7.0% −12.1% −16.3% −14.2% −36.8% −54.9%
Dec 13, 2024 NRDY $2 $5.1M +12% −12.1% −14.9% −8.6% −27.0% −50.8%
Dec 12, 2024 NRDY $2 $241.5K +23% −4.4% −4.4% +5.6% −15.6% −46.5%
Dec 9, 2024 NRDY $2 $267K +29% −3.0% −6.7% +8.5% −13.4% −47.8%
Dec 6, 2024 NRDY $2 $266K +1.3% +20.5% +0.6% +10.6% −18.6% −46.8%
Dec 5, 2024 NRDY $2 $657.2K +1.7% +25.2% +1.9% +10.3% −14.8% −44.8%
Nov 29, 2024 NRDY $2 $59.8K +7.8% +4.4% −1.3% +12.0% −22.2% −45.8%
Nov 25, 2024 NRDY $1 $432K +1.2% +25.9% +16.5% +17.3% −13.7% −38.4%
Nov 22, 2024 NRDY $1 $590.5K +1.7% +20.7% +18.6% +13.6% −23.6% −38.9%
Nov 21, 2024 NRDY $1 $175K +0.6% +28.0% +25.8% +17.4% −22.0% −35.2%
Nov 20, 2024 NRDY $1 $918K +3.2% +36.8% +36.8% +29.6% −23.0% −31.5%
Nov 19, 2024 NRDY $1 $1.82M +6.8% +27.0% +42.9% +34.9% −26.3% −32.1%
Nov 18, 2024 NRDY $1 $780.2K +3.8% +71.0% +92.0% +70.0% −15.9% −14.4%
Nov 15, 2024 NRDY $1 $20.1K +0.1% +98.7% +100.8% +84.1% −12.6% −10.5%
Nov 14, 2024 NRDY $1 $181.6K +1.0% +125.9% +131.9% +108.1% +1.1% +1.8%
Nov 12, 2024 NRDY $1 $6.98M +60% +77.8% +115.6% +91.1% +0.0% −4.9%
Nov 12, 2024 NRDY $1 $250K +96% +77.8% +115.6% +91.1% +0.0% −4.9%
Aug 19, 2024 NRDY $1 $2.24M +20% −1.9% +16.7% +66.7% +17.6% −20.7%
Aug 16, 2024 NRDY $1 $7.92M +425% +8.9% +4.7% +101.0% +31.9% −10.4%
Aug 16, 2024 NRDY $1 $1.81M +18% +8.9% +4.7% +101.0% +31.9% −10.4%
Jun 14, 2024 NRDY $2 $670.2K +20% −9.6% −44.7% +1.1% −13.3% −54.5%
Jun 13, 2024 NRDY $2 $652.9K +24% −9.1% −48.2% −7.0% −15.0% −54.2%
How this is calculated. We score only open-market purchases (SEC code P) — the buys that carry real signal. Each trade's return is measured from the adjusted closing price on the purchase date to the latest close, accounting for stock splits and dividends. The 1M/3M/6M/12M columns show the same trade's return after each fixed holding period; a dash means that horizon hasn't elapsed yet or isn't priceable. Sales are excluded because insiders sell for many routine reasons. With only 45 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$40.81M
45 trades
Open-market sells
$0
0 trades
Net flow
+$40.81M
Net buying
Total filings
45
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 27, 2024 ΔOwn +1.2%

Cohn Charles K., NRDY's CEO, spent $432K of their own money on 300,000 shares at $1, growing their stake 1%. Their tracked buys have a 14% win rate.

+$432K
300,000 sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 26, 2024 ΔOwn +1.7%

Cohn Charles K., NRDY's CEO, spent $590.5K of their own money on 421,796 shares at $1, growing their stake 2%. Their tracked buys have a 14% win rate.

+$590.5K
421,796 sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 25, 2024 ΔOwn +0.6%

Cohn Charles K., NRDY's CEO, spent $175K of their own money on 136,753 shares at $1, growing their stake 1%. Their tracked buys have a 14% win rate.

+$175K
136,753 sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 22, 2024 ΔOwn +3.2%

Cohn Charles K., NRDY's CEO, spent $918K of their own money on 746,335 shares at $1, growing their stake 3%. Their tracked buys have a 14% win rate.

+$918K
746,335 sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 21, 2024 ΔOwn +6.8%

Cohn Charles K., NRDY's CEO, spent $1.82M of their own money on 1.5M shares at $1, growing their stake 7%. Their tracked buys have a 14% win rate.

+$1.82M
1.5M sh @ $1
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NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 20, 2024 ΔOwn +3.8%

Cohn Charles K., NRDY's CEO, spent $780.2K of their own money on 796,096 shares at $1, growing their stake 4%. Their tracked buys have a 14% win rate.

+$780.2K
796,096 sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 19, 2024 ΔOwn +0.1%

Cohn Charles K., NRDY's CEO, spent $20.1K of their own money on 22,303 shares at $1. Their tracked buys have a 14% win rate.

+$20.1K
22,303 sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 18, 2024 ΔOwn +1.0%

Cohn Charles K., NRDY's CEO, spent $181.6K of their own money on 208,726 shares at $1, growing their stake 1%. Their tracked buys have a 14% win rate.

+$181.6K
208,726 sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 14, 2024 ΔOwn +60%

Cohn Charles K., NRDY's CEO, spent $6.98M of their own money on 7.84M shares at $1, growing their stake 60%. Their tracked buys have a 14% win rate.

+$6.98M
7.84M sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Nov 14, 2024 ΔOwn +96%

Cohn Charles K., NRDY's CEO, spent $250K of their own money on 250,000 shares at $1, growing their stake 96%. Their tracked buys have a 14% win rate.

+$250K
250,000 sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Aug 21, 2024 ΔOwn +20%

Cohn Charles K., NRDY's CEO, spent $2.24M of their own money on 2.17M shares at $1, growing their stake 20%. Their tracked buys have a 14% win rate.

+$2.24M
2.17M sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Aug 20, 2024 ΔOwn +425%

Cohn Charles K., NRDY's CEO, spent $7.92M of their own money on 9M shares at $1, growing their stake 425%. Their tracked buys have a 14% win rate.

+$7.92M
9M sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Aug 20, 2024 ΔOwn +18%

Cohn Charles K., NRDY's CEO, spent $1.81M of their own money on 1.99M shares at $1, growing their stake 18%. Their tracked buys have a 14% win rate.

+$1.81M
1.99M sh @ $1
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Jun 18, 2024 ΔOwn +20%

Cohn Charles K., NRDY's CEO, spent $670.2K of their own money on 347,275 shares at $2, growing their stake 20%. Their tracked buys have a 14% win rate.

+$670.2K
347,275 sh @ $2
NRDY
Buy Cohn Charles K.★ 14% · Director, Chief Executive Officer, 10% Owner · Open-market purchase · filed Jun 17, 2024 ΔOwn +24%

Cohn Charles K., NRDY's CEO, spent $652.9K of their own money on 347,275 shares at $2, growing their stake 24%. Their tracked buys have a 14% win rate.

+$652.9K
347,275 sh @ $2

Frequently asked questions

How is Cohn Charles K.'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 Cohn Charles K.'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.