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Buy track record

How this insider's open-market purchases have performed
100%
of buys now in profit
1 up · 0 down
Avg return since buy+96.0%
Median return+96.0%
Best trade+96.0%
Worst trade+96.0%
Buys scored1
Average return by holding period — separates good entry timing from riding one long winner
After 1 month +23.3% 100% won · 1 trade
After 3 months +65.9% 100% won · 1 trade
After 6 months +75.4% 100% won · 1 trade
After 12 months +70.5% 100% won · 1 trade
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
Nov 18, 2020 REZI $15 $50K +20% +23.3% +65.9% +75.4% +70.5% +96.0%
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 1 scored trade, treat this as a small sample, not a verdict.
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Open-market buys
$50K
1 trades
Open-market sells
$1.85M
19 trades
Net flow
−$1.8M
Net selling
Total filings
41
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
SLAB
Sell Richardson Nina · Director · Open-market sale · filed Jan 15, 2026 ΔOwn −14%

Richardson Nina sold $201.9K of SLAB, trimming their stake 14%.

−$201.9K
1,355 sh @ $149
REZI
Sell Richardson Nina · Director · Open-market sale · filed Aug 28, 2025 ΔOwn −5.2%

Richardson Nina sold $115.1K of REZI, trimming their stake 5%.

−$115.1K
3,333 sh @ $35
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REZI
Sell Richardson Nina · Director · Open-market sale · filed Apr 10, 2026 ΔOwn −4.6%

Richardson Nina sold $82.7K of REZI, trimming their stake 5%.

−$82.7K
2,789 sh @ $30
REZI
Sell Richardson Nina · Director · Open-market sale · filed Jul 9, 2025 ΔOwn −4.2%

Richardson Nina sold $66.1K of REZI, trimming their stake 4%.

−$66.1K
2,790 sh @ $24
COHU
Grant/award Richardson Nina · Director · Grant/award · filed May 20, 2025 ΔOwn +36%
+$0
10,257 sh
COHU
Sell Richardson Nina · Director · Open-market sale · filed Oct 15, 2024 ΔOwn −15%

Richardson Nina sold $120.7K of COHU, trimming their stake 15%.

−$120.7K
4,999 sh @ $24
COHU
Grant/award Richardson Nina · Director · Grant/award · filed Jun 7, 2024 ΔOwn +17%
+$0
4,918 sh
REZI
Sell Richardson Nina · Director · Open-market sale · filed May 13, 2024 ΔOwn −9.8%

Richardson Nina sold $119K of REZI, trimming their stake 10%.

−$119K
5,578 sh @ $21
COHU
Sell Richardson Nina · Director · Open-market sale · filed May 11, 2023 ΔOwn −6.7%

Richardson Nina sold $69.3K of COHU, trimming their stake 7%.

−$69.3K
2,036 sh @ $34
COHU
Grant/award Richardson Nina · Director · Grant/award · filed May 11, 2023 ΔOwn +17%
+$0
4,347 sh
SLAB
Sell Richardson Nina · Director · Open-market sale · filed Apr 25, 2023 ΔOwn −7.1%

Richardson Nina sold $83.2K of SLAB, trimming their stake 7%.

−$83.2K
500 sh @ $166
REZI
Sell Richardson Nina · Director · Open-market sale · filed Mar 6, 2023 ΔOwn −6.8%

Richardson Nina sold $64.9K of REZI, trimming their stake 7%.

−$64.9K
3,458 sh @ $19
SLAB
Sell Richardson Nina · Director · Open-market sale · filed Jan 30, 2023 ΔOwn −13%

Richardson Nina sold $145.9K of SLAB, trimming their stake 13%.

−$145.9K
912 sh @ $160
SLAB
Sell Richardson Nina · Director · Open-market sale · filed Nov 16, 2022 ΔOwn −17%

Richardson Nina sold $195.9K of SLAB, trimming their stake 17%.

−$195.9K
1,351 sh @ $145
COHU
Sell Richardson Nina · Director · Open-market sale · filed Nov 2, 2022 ΔOwn −2.9%

Richardson Nina sold $25.6K of COHU, trimming their stake 3%.

−$25.6K
769 sh @ $33
COHU
Grant/award Richardson Nina · Director · Grant/award · filed May 6, 2022 ΔOwn +23%
+$0
5,091 sh
SLAB
Sell Richardson Nina · Director · Open-market sale · filed Apr 25, 2022 ΔOwn −5.5%

Richardson Nina sold $61.3K of SLAB, trimming their stake 5%.

−$61.3K
473 sh @ $130
EAR
Sell Richardson Nina · Director · Open-market sale · filed Mar 16, 2022 ΔOwn −100%

Richardson Nina sold $13.7K of EAR, trimming their stake 100%.

−$13.7K
3,886 sh @ $4
EAR
Sell Richardson Nina · Director · Open-market sale · filed Dec 15, 2021 ΔOwn −47%

Richardson Nina sold $17K of EAR, trimming their stake 47%.

−$17K
3,500 sh @ $5

Frequently asked questions

How is Richardson Nina'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 Richardson Nina'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.