WINMILL & CO. INC

Insider · SEC CIK 52234
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Buy track record

How this insider's open-market purchases have performed
97%
of buys now in profit
58 up · 2 down
Avg return since buy+21.6%
Median return+11.9%
Best trade+61.8%
Worst trade−0.9%
Buys scored60
Average return by holding period — separates good entry timing from riding one long winner
After 1 month +0.9% 58% won · 60 trades
After 3 months +3.6% 77% won · 60 trades
After 6 months +7.9% 90% won · 60 trades
After 12 months +11.4% 100% won · 23 trades
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
Dec 1, 2025 SELF $5 $15.9K +2.1% +0.5% +1.3% +3.0% +3.4%
Nov 28, 2025 SELF $5 $17.2K +2.4% +1.3% +1.5% +2.2% +3.6%
Nov 26, 2025 SELF $5 $25.2K +3.6% +0.7% +0.3% +5.2% +4.8%
Nov 25, 2025 SELF $5 $23.6K +3.4% −1.1% −1.3% +3.4% +3.0%
Nov 24, 2025 SELF $5 $20.9K +3.2% +0.5% −0.3% +4.6% +4.2%
Nov 21, 2025 SELF $5 $31.7K +5.1% −0.7% +0.9% +6.0% +5.3%
Nov 20, 2025 SELF $5 $29.8K +5.1% −0.3% +0.1% +6.2% +5.7%
Nov 19, 2025 SELF $5 $32K +5.7% −0.5% −0.3% +7.8% +5.3%
Nov 18, 2025 SELF $5 $29K +5.4% −0.7% −2.4% +5.5% +3.0%
Nov 17, 2025 SELF $5 $31.9K +6.4% −0.1% −1.1% +6.8% +4.2%
Nov 14, 2025 SELF $5 $35.8K +7.8% −0.7% −0.5% +8.0% +4.8%
Nov 13, 2025 SELF $5 $33.6K +8.0% +0.3% +0.7% +8.9% +5.9%
Nov 12, 2025 SELF $5 $30.4K +7.8% −0.8% +0.9% +8.3% +5.5%
Nov 11, 2025 SELF $5 $10.3K +2.7% +1.4% +4.1% +10.6% +7.4%
Aug 29, 2025 SELF $5 $25.2K +6.5% −6.8% −4.2% −2.9% −0.9%
Aug 28, 2025 SELF $5 $39.1K +11% −6.6% −4.2% −2.8% −0.7%
Aug 27, 2025 SELF $5 $29.3K +9.4% −5.7% −3.3% −2.6% +0.2%
Aug 26, 2025 SELF $5 $41K +15% −2.6% −2.2% −2.0% +2.5%
Aug 25, 2025 SELF $5 $40.8K +18% −3.0% +0.3% −1.0% +3.3%
Aug 25, 2025 SELF $5 $40.8K +18% −3.0% +0.3% −1.0% +3.3%
Aug 22, 2025 SELF $5 $11.1K +5.3% −0.9% +0.4% +0.3% +4.7%
Aug 21, 2025 SELF $5 $2.6K +1.2% +0.0% +0.4% +1.3% +5.7%
Jul 30, 2025 BXSY $14 $86.3K +2.8% +3.9% +9.2% +22.1% +34.1%
Jul 28, 2025 BXSY $14 $131.8K +4.5% +3.3% +10.9% +24.4% +33.7%
Jul 25, 2025 BXSY $14 $34.3K +1.2% +2.5% +9.4% +21.4% +32.7%
Jul 22, 2025 BXSY $14 $17.8K +0.6% +5.0% +10.0% +23.7% +35.2%
Jul 21, 2025 BXSY $14 $31.2K +1.1% +2.3% +10.7% +22.7% +35.0%
Jul 18, 2025 BXSY $14 $3.7K +0.1% +3.8% +11.3% +20.5% +35.6%
Jul 17, 2025 BXSY $14 $18.9K +0.7% +3.5% +9.6% +20.1% +35.1%
Jul 16, 2025 BXSY $14 $135.3K +5.2% +4.1% +9.7% +21.9% +35.9%
Jul 15, 2025 BXSY $14 $135.5K +5.4% +5.1% +11.2% +22.0% +36.1%
Jul 14, 2025 BXSY $14 $40.5K +1.6% +3.1% +10.5% +20.2% +35.6%
Jul 11, 2025 BXSY $14 $135.9K +5.8% +0.1% +10.7% +19.1% +35.1%
Jul 7, 2025 BXSY $14 $48.9K +2.1% +0.7% +11.5% +17.8% +35.2%
Jul 2, 2025 BXSY $14 $135.1K +6.4% +0.0% +11.5% +16.4% +35.4%
Jul 1, 2025 BXSY $13 $29.5K +1.4% −0.4% +12.2% +17.3% +36.4%
Jun 30, 2025 BXSY $13 $6.1K +0.3% +2.2% +12.3% +17.9% +37.0%
Aug 30, 2024 SELF $5 $9.6K +4.8% +2.0% −0.8% +3.0% +9.3% +10.2%
Aug 29, 2024 SELF $5 $4.2K +2.1% +0.8% −1.9% +1.8% +9.9% +8.9%
Aug 28, 2024 BXSY $13 $31.7K +1.6% +2.8% +5.0% +4.3% +19.2% +54.3%
Aug 27, 2024 SELF $5 $15.4K +8.6% −0.2% −0.2% +2.0% +8.9% +9.1%
Aug 27, 2024 SELF $5 $692 +0.4% −0.2% −0.2% +2.0% +8.9% +9.1%
Aug 27, 2024 BXSY $13 $151.6K +8.2% +2.2% +3.6% +4.0% +18.2% +52.4%
Aug 26, 2024 SELF $5 $8.4K +5.0% +2.0% +2.6% +3.0% +8.8% +11.5%
Aug 26, 2024 BXSY $13 $32.6K +1.8% −0.6% +1.5% +2.3% +15.6% +49.9%
Aug 23, 2024 SELF $5 $9.1K +5.6% −0.0% +1.2% +1.2% +6.9% +10.4%
Aug 22, 2024 BXSY $13 $17.2K +1.0% +0.9% +2.6% +2.1% +18.3% +52.4%
Aug 22, 2024 SELF $5 $36.2K +29% −0.4% +1.0% +0.8% +5.1% +10.0%
Aug 21, 2024 SELF $5 $12.9K +12% −0.6% +3.5% +1.4% +3.8% +9.8%
Aug 20, 2024 SELF $5 $24.5K +29% +4.0% +6.0% +4.0% +5.9% +12.4%
Aug 20, 2024 BXSY $13 $79 +0.6% +1.3% +3.5% +15.8% +51.9%
Aug 19, 2024 BXSY $13 $38.3K +2.2% +1.3% +0.2% +4.0% +15.1% +51.5%
Aug 19, 2024 SELF $5 $21K +33% +4.6% +3.0% +5.2% +6.5% +12.6%
Aug 16, 2024 SELF $5 $16.8K +36% +6.7% +2.4% +4.4% +5.9% +12.6%
Aug 15, 2024 SELF $5 $11.5K +33% +8.2% +4.2% +5.9% +5.9% +14.2%
Aug 14, 2024 SELF $5 $9.4K +37% +8.4% +6.4% +6.3% +8.0% +14.4%
Aug 13, 2024 BXSY $13 $25.5K +1.5% +0.6% +3.7% +5.0% +17.2% +53.8%
Aug 9, 2024 BXSY $13 $39.8K +2.4% −0.5% +5.1% +5.7% +14.4% +54.4%
Aug 7, 2024 BXSY $13 $79.8K +5.1% −0.2% +5.9% +5.6% +15.3% +54.9%
Aug 6, 2024 BXSY $12 $61.1K +4.2% +3.2% +9.4% +10.5% +19.8% +61.8%
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 60 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$3.45M
71 trades
Open-market sells
$0
0 trades
Net flow
+$3.45M
Net buying
Total filings
71
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Jul 16, 2025 ΔOwn +5.4%

Winmill & Co. Inc, BXSY's Insider, spent $135.5K of their own money on 10,000 shares at $14, growing their stake 5%.

+$135.5K
10,000 sh @ $14
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Jul 14, 2025 ΔOwn +1.6%

Winmill & Co. Inc, BXSY's Insider, spent $40.5K of their own money on 2,982 shares at $14, growing their stake 2%.

+$40.5K
2,982 sh @ $14
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Jul 14, 2025 ΔOwn +5.8%

Winmill & Co. Inc, BXSY's Insider, spent $135.9K of their own money on 10,000 shares at $14, growing their stake 6%.

+$135.9K
10,000 sh @ $14
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Jul 8, 2025 ΔOwn +2.1%

Winmill & Co. Inc, BXSY's Insider, spent $48.9K of their own money on 3,600 shares at $14, growing their stake 2%.

+$48.9K
3,600 sh @ $14
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Jul 3, 2025 ΔOwn +6.4%

Winmill & Co. Inc, BXSY's Insider, spent $135.1K of their own money on 10,000 shares at $14, growing their stake 6%.

+$135.1K
10,000 sh @ $14
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BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Jul 1, 2025 ΔOwn +1.4%

Winmill & Co. Inc, BXSY's Insider, spent $29.5K of their own money on 2,216 shares at $13, growing their stake 1%.

+$29.5K
2,216 sh @ $13
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Jul 1, 2025 ΔOwn +0.3%

Winmill & Co. Inc, BXSY's Insider, spent $6.1K of their own money on 459 shares at $13.

+$6.1K
459 sh @ $13
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 30, 2024 ΔOwn +4.8%

Winmill & Co. Inc, SELF's Insider, spent $9.6K of their own money on 1,836 shares at $5, growing their stake 5%.

+$9.6K
1,836 sh @ $5
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 30, 2024 ΔOwn +2.1%

Winmill & Co. Inc, SELF's Insider, spent $4.2K of their own money on 800 shares at $5, growing their stake 2%.

+$4.2K
800 sh @ $5
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 28, 2024 ΔOwn +1.6%

Winmill & Co. Inc, BXSY's Insider, spent $31.7K of their own money on 2,395 shares at $13, growing their stake 2%.

+$31.7K
2,395 sh @ $13
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 27, 2024 ΔOwn +8.6%

Winmill & Co. Inc, SELF's Insider, spent $15.4K of their own money on 2,966 shares at $5, growing their stake 9%.

+$15.4K
2,966 sh @ $5
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 27, 2024 ΔOwn +0.4%

Winmill & Co. Inc, SELF's Insider, spent $692 of their own money on 133 shares at $5.

+$692
133 sh @ $5
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 27, 2024 ΔOwn +8.2%

Winmill & Co. Inc, BXSY's Insider, spent $151.6K of their own money on 11,500 shares at $13, growing their stake 8%.

+$151.6K
11,500 sh @ $13
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 27, 2024 ΔOwn +5.0%

Winmill & Co. Inc, SELF's Insider, spent $8.4K of their own money on 1,632 shares at $5, growing their stake 5%.

+$8.4K
1,632 sh @ $5
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 27, 2024 ΔOwn +1.8%

Winmill & Co. Inc, BXSY's Insider, spent $32.6K of their own money on 2,450 shares at $13, growing their stake 2%.

+$32.6K
2,450 sh @ $13
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 23, 2024 ΔOwn +5.6%

Winmill & Co. Inc, SELF's Insider, spent $9.1K of their own money on 1,744 shares at $5, growing their stake 6%.

+$9.1K
1,744 sh @ $5
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 23, 2024 ΔOwn +1.0%

Winmill & Co. Inc, BXSY's Insider, spent $17.2K of their own money on 1,305 shares at $13, growing their stake 1%.

+$17.2K
1,305 sh @ $13
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 23, 2024 ΔOwn +29%

Winmill & Co. Inc, SELF's Insider, spent $36.2K of their own money on 6,962 shares at $5, growing their stake 29%.

+$36.2K
6,962 sh @ $5
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 21, 2024 ΔOwn +12%

Winmill & Co. Inc, SELF's Insider, spent $12.9K of their own money on 2,524 shares at $5, growing their stake 12%.

+$12.9K
2,524 sh @ $5
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 21, 2024 ΔOwn +29%

Winmill & Co. Inc, SELF's Insider, spent $24.5K of their own money on 4,803 shares at $5, growing their stake 29%.

+$24.5K
4,803 sh @ $5
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 20, 2024

Winmill & Co. Inc, BXSY's Insider, spent $79 of their own money on 6 shares at $13.

+$79
6 sh @ $13
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 20, 2024 ΔOwn +2.2%

Winmill & Co. Inc, BXSY's Insider, spent $38.3K of their own money on 2,915 shares at $13, growing their stake 2%.

+$38.3K
2,915 sh @ $13
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 19, 2024 ΔOwn +33%

Winmill & Co. Inc, SELF's Insider, spent $21K of their own money on 4,195 shares at $5, growing their stake 33%.

+$21K
4,195 sh @ $5
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 19, 2024 ΔOwn +36%

Winmill & Co. Inc, SELF's Insider, spent $16.8K of their own money on 3,301 shares at $5, growing their stake 36%.

+$16.8K
3,301 sh @ $5
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 15, 2024 ΔOwn +33%

Winmill & Co. Inc, SELF's Insider, spent $11.5K of their own money on 2,300 shares at $5, growing their stake 33%.

+$11.5K
2,300 sh @ $5
SELF
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 15, 2024 ΔOwn +37%

Winmill & Co. Inc, SELF's Insider, spent $9.4K of their own money on 1,900 shares at $5, growing their stake 37%.

+$9.4K
1,900 sh @ $5
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 14, 2024 ΔOwn +1.5%

Winmill & Co. Inc, BXSY's Insider, spent $25.5K of their own money on 1,981 shares at $13, growing their stake 1%.

+$25.5K
1,981 sh @ $13
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 12, 2024 ΔOwn +2.4%

Winmill & Co. Inc, BXSY's Insider, spent $39.8K of their own money on 3,092 shares at $13, growing their stake 2%.

+$39.8K
3,092 sh @ $13
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 8, 2024 ΔOwn +5.1%

Winmill & Co. Inc, BXSY's Insider, spent $79.8K of their own money on 6,320 shares at $13, growing their stake 5%.

+$79.8K
6,320 sh @ $13
BXSY
Buy WINMILL & CO. INC · Insider · Open-market purchase · filed Aug 6, 2024 ΔOwn +4.2%

Winmill & Co. Inc, BXSY's Insider, spent $61.1K of their own money on 4,919 shares at $12, growing their stake 4%.

+$61.1K
4,919 sh @ $12

Frequently asked questions

How is WINMILL & CO. INC'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 WINMILL & CO. INC'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.