MNMD
Gryska David W, MNMD's Director, spent $17.9K of their own money on 2,500 shares at $7, growing their stake 14%.
+$17.9K
2,500 sh @ $7
GRYSKA DAVID W
Director · SEC CIK 1202335Advertisement
Buy track record
How this insider's open-market purchases have performedThis insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
Advertisement
Open-market buys
$38.9K
2 trades
Open-market sells
$8.1M
23 trades
Net flow
−$8.06M
Net selling
Total filings
56
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstMNMD
Gryska David W, MNMD's Director, spent $20.9K of their own money on 3,500 shares at $6, growing their stake 25%.
+$20.9K
3,500 sh @ $6
SGEN
−$11.22M
49,003 sh @ $229
FBRX
+$150K
148,514 sh @ $1
MNMD
+$0
13,851 sh
Advertisement
SGEN
+$0
2,044 sh
SGEN
+$321.1K
8,750 sh @ $37
AERI
−$175.3K
11,495 sh @ $15
AERI
−$30.4K
1,996 sh @ $15
SGEN
−$968.2K
7,500 sh @ $129
AERI
+$0
6,245 sh
SGEN
+$0
1,503 sh
SGEN
+$36K
1,794 sh @ $20
SGEN
−$257.1K
1,794 sh @ $143
SGEN
+$30.4K
1,516 sh @ $20
SGEN
−$218.6K
1,516 sh @ $144
SGEN
+$13.8K
690 sh @ $20
SGEN
−$100.1K
690 sh @ $145
SGEN
+$22.1K
1,100 sh @ $20
SGEN
−$151.2K
1,100 sh @ $137
SGEN
+$20.6K
1,029 sh @ $20
SGEN
−$142.7K
1,029 sh @ $139
SGEN
+$47.6K
2,371 sh @ $20
SGEN
−$330.6K
2,371 sh @ $139
SGEN
+$17.1K
850 sh @ $20
SGEN
−$103.4K
850 sh @ $122
SGEN
+$51.2K
2,553 sh @ $20
SGEN
−$312.6K
2,553 sh @ $122
SGEN
+$17.7K
883 sh @ $20
SGEN
−$109K
883 sh @ $123
Frequently asked questions
How is GRYSKA DAVID W'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 GRYSKA DAVID W'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.