David Kroin is Director at Biodel Inc (BIOD). They have made 6 open-market trades across 4 companies since 2008, most recently 2026-02-10.
CIK 0001397513
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NKTR | SELL | 2024-05-10 | 2024-05-13 | $1.78 | $100K | -3.5% | -25.0% | -35.5% |
| BIOD | SELL · 10b5-1 | 2010-01-13 | 2010-01-15 | $5.07 | $422K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2010-01-11 | 2010-01-13 | $5.03 | $348K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-10-21 | 2009-10-23 | $5.00 | $7K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-10-19 | 2009-10-21 | $5.02 | $16K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-10-15 | 2009-10-19 | $5.06 | $74K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-09-18 | 2009-09-22 | $5.22 | $74K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-09-03 | 2009-09-08 | $5.03 | $32K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-08-28 | 2009-09-01 | $5.04 | $20K | N/A | N/A | N/A |
| BIODEL | SELL · 10b5-1 | 2009-08-26 | 2009-08-28 | $5.14 | $30K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-08-18 | 2009-08-20 | $5.00 | $33K | N/A | N/A | N/A |
| BIODEL | SELL · 10b5-1 | 2009-08-14 | 2009-08-18 | $5.02 | $27K | N/A | N/A | N/A |
| BIODEL | SELL · 10b5-1 | 2009-08-12 | 2009-08-14 | $5.00 | $5K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-08-10 | 2009-08-12 | $5.03 | $22K | N/A | N/A | N/A |
| BIODEL | SELL | 2009-08-06 | 2009-08-10 | $5.06 | $39K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-08-04 | 2009-08-06 | $5.01 | $39K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-31 | 2009-08-04 | $5.03 | $9K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-29 | 2009-07-31 | $5.06 | $69K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-27 | 2009-07-29 | $5.20 | $64K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-23 | 2009-07-27 | $5.22 | $412K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-21 | 2009-07-23 | $5.23 | $266K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-17 | 2009-07-21 | $5.05 | $37K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-15 | 2009-07-17 | $5.00 | $46K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-13 | 2009-07-15 | $5.00 | $4K | N/A | N/A | N/A |
| BIOD | SELL · 10b5-1 | 2009-07-08 | 2009-07-10 | $5.02 | $2K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.