DMAC
+$52K
6,175 sh @ $8
Giuffre Randall Michael
Director · SEC CIK 1759822
Insider at
DMAC DiaMedica Therapeutics Inc.
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Buy track record
How this insider's open-market purchases have performed100%
of buys now in profit
11 up · 0 down
Avg return since buy+255.7%
Median return+299.0%
Best trade+376.1%
Worst trade+33.3%
Buys scored11
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+20.9%
82% won · 11 trades
After 3 months
+34.6%
82% won · 11 trades
After 6 months
+91.9%
82% won · 11 trades
After 12 months
+70.2%
73% won · 11 trades
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 23, 2023 | DMAC | $4 | $254.2K | +22% | −18.4% | −39.8% | −33.4% | −47.8% | +33.3% | |
| Dec 9, 2022 | DMAC | $1 | $53K | +17% | +13.3% | +21.0% | +119.6% | +97.9% | +296.2% | |
| Dec 8, 2022 | DMAC | $1 | $28K | +9.8% | +12.5% | +27.1% | +124.3% | +102.8% | +293.4% | |
| Dec 7, 2022 | DMAC | $1 | $31.6K | +13% | +16.5% | +26.6% | +119.4% | +104.3% | +307.6% | |
| Dec 6, 2022 | DMAC | $1 | $3.1K | +1.3% | +2.1% | +25.4% | +105.6% | +98.6% | +299.0% | |
| Dec 1, 2022 | DMAC | $1 | $975 | +0.5% | +23.3% | +47.5% | +127.5% | +115.8% | +372.1% | |
| Dec 1, 2022 | DMAC | $1 | $55.4K | +35% | +23.3% | +47.5% | +127.5% | +115.8% | +372.1% | |
| Nov 30, 2022 | DMAC | $1 | $3.5K | +2.3% | +32.8% | +52.1% | +136.1% | +105.0% | +376.1% | |
| Nov 29, 2022 | DMAC | $1 | $21.6K | +16% | +35.0% | +47.5% | +134.2% | +108.3% | +372.1% | |
| Nov 20, 2020 | DMAC | $4 | $63.9K | +16% | +91.0% | +133.2% | +70.3% | −13.5% | +33.5% | |
| Dec 11, 2018 | DMAC | $4 | $45K | +15% | −1.4% | −7.2% | −20.1% | −14.8% | +57.8% |
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 11 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$560.2K
11 trades
Open-market sells
$0
0 trades
Net flow
+$560.2K
Net buying
Total filings
21
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstDMAC
+$25.3K
12,000 sh @ $2
DMAC
+$18.3K
5,000 sh @ $4
DMAC
+$58K
10,861 sh @ $5
DMAC
+$53.7K
19,196 sh @ $3
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DMAC
Giuffre Randall Michael, DMAC's Director, spent $254.2K of their own money on 65,000 shares at $4, growing their stake 22%.
+$254.2K
65,000 sh @ $4
DMAC
−$0
15,000 sh
DMAC
+$53.7K
35,130 sh @ $2
DMAC
Giuffre Randall Michael, DMAC's Director, spent $53K of their own money on 37,079 shares at $1, growing their stake 17%.
+$53K
37,079 sh @ $1
DMAC
Giuffre Randall Michael, DMAC's Director, spent $28K of their own money on 20,000 shares at $1, growing their stake 10%.
+$28K
20,000 sh @ $1
DMAC
Giuffre Randall Michael, DMAC's Director, spent $31.6K of their own money on 22,574 shares at $1, growing their stake 13%.
+$31.6K
22,574 sh @ $1
DMAC
Giuffre Randall Michael, DMAC's Director, spent $3.1K of their own money on 2,300 shares at $1, growing their stake 1%.
+$3.1K
2,300 sh @ $1
DMAC
Giuffre Randall Michael, DMAC's Director, spent $975 of their own money on 819 shares at $1.
+$975
819 sh @ $1
DMAC
Giuffre Randall Michael, DMAC's Director, spent $55.4K of their own money on 46,133 shares at $1, growing their stake 35%.
+$55.4K
46,133 sh @ $1
DMAC
Giuffre Randall Michael, DMAC's Director, spent $3.5K of their own money on 2,970 shares at $1, growing their stake 2%.
+$3.5K
2,970 sh @ $1
DMAC
Giuffre Randall Michael, DMAC's Director, spent $21.6K of their own money on 18,125 shares at $1, growing their stake 16%.
+$21.6K
18,125 sh @ $1
DMAC
+$53.8K
15,026 sh @ $4
DMAC
+$61.2K
7,441 sh @ $8
DMAC
Giuffre Randall Michael, DMAC's Director, spent $63.9K of their own money on 15,000 shares at $4, growing their stake 16%.
+$63.9K
15,000 sh @ $4
DMAC
+$35.7K
7,784 sh @ $5
DMAC
Giuffre Randall Michael, DMAC's Director, spent $45K of their own money on 11,250 shares at $4, growing their stake 15%.
+$45K
11,250 sh @ $4
Frequently asked questions
How is Giuffre Randall Michael'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 Giuffre Randall Michael'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.