Gamma Investment Trust Frost is 10% at Opko Health, Inc. (OPK). They have made 59 open-market trades across 10 companies since 2007, most recently 2026-09-11.
CIK 0001380896
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.
59 open-market purchases totalling $31.8M since 2007, never a sale. Across 42 scored buys the stock is down 0.1% at ninety days, and 0.3 points behind the S&P over the same stretch.
42 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 76% | 76% |
| Avg Move | -17.6% | -0.1% | -0.1% |
| Alpha | -11.8% | -0.3% | -0.3% |
| Scored | 42 | 42 | 42 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| OPK | BUY | 2008-05-20 | 2008-05-22 | $2.20 | $44K | -16.4% | +0.8% | +0.8% |
| DRJ | BUY | 2008-05-19 | 2008-05-20 | $1.22 | $17K | N/A | N/A | N/A |
| DRJ | BUY | 2008-05-16 | 2008-05-19 | $1.18 | $15K | N/A | N/A | N/A |
| DRJ | BUY | 2008-05-15 | 2008-05-16 | $1.19 | $24K | N/A | N/A | N/A |
| OPK | BUY | 2008-05-12 | 2008-05-14 | $1.85 | $20K | -16.4% | +0.8% | +0.8% |
| OPK | BUY | 2008-05-08 | 2008-05-12 | $1.25 | $3.3M | -16.4% | +0.8% | +0.8% |
| OPK | BUY | 2008-04-11 | 2008-04-15 | $1.67 | $248K | -16.4% | +0.8% | +0.8% |
| OPK | BUY | 2008-04-09 | 2008-04-11 | $1.85 | $50K | -16.4% | +0.8% | +0.8% |
| OPK | BUY | 2008-04-01 | 2008-04-03 | $2.08 | $73K | -16.4% | +0.8% | +0.8% |
| LTS | BUY | 2008-04-01 | 2008-04-02 | $1.80 | $2.7M | -21.3% | -2.9% | -2.9% |
| OPK | BUY | 2008-03-28 | 2008-04-01 | $2.09 | $42K | -16.4% | +0.8% | +0.8% |
| LTS | BUY | 2008-03-20 | 2008-03-24 | $1.89 | $19K | -21.3% | -2.9% | -2.9% |
| OPK | BUY | 2008-03-18 | 2008-03-20 | $2.26 | $23K | -16.4% | +0.8% | +0.8% |
| SFES.OB | BUY | 2008-03-17 | 2008-03-19 | $3.21 | $13K | N/A | N/A | N/A |
| OPK | BUY | 2008-03-14 | 2008-03-18 | $2.30 | $37K | -16.4% | +0.8% | +0.8% |
| "SFES.OB" | BUY | 2008-03-14 | 2008-03-14 | $3.00 | $45K | N/A | N/A | N/A |
| "PLX" | BUY | 2008-03-11 | 2008-03-12 | $2.91 | $29K | N/A | N/A | N/A |
| OPK | BUY | 2008-03-06 | 2008-03-07 | $2.00 | $165K | -16.4% | +0.8% | +0.8% |
| OPK | BUY | 2008-02-29 | 2008-02-29 | $2.25 | $423K | -16.4% | +0.8% | +0.8% |
| SFES | BUY | 2008-02-22 | 2008-02-25 | $3.50 | $7K | N/A | N/A | N/A |
| OPK | BUY | 2008-02-05 | 2008-02-07 | $2.89 | $29K | -16.4% | +0.8% | +0.8% |
| DRJ | BUY | 2008-02-01 | 2008-02-04 | $1.30 | $13K | N/A | N/A | N/A |
| OPK | BUY | 2008-01-31 | 2008-02-04 | $2.82 | $56K | -16.4% | +0.8% | +0.8% |
| OPK | BUY | 2008-01-28 | 2008-01-30 | $2.85 | $29K | -16.4% | +0.8% | +0.8% |
| LTS | BUY | 2008-01-08 | 2008-01-10 | $2.01 | $40K | -21.3% | -2.9% | -2.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| NNUP |
| 1,511,642 |
| — |
| SFES | 4,030,065 | — |
| "PLX" | 9,768,273 | — |
| SFES.OB | 4,050,565 | — |
| "SFES.OB" | 4,046,565 | — |
| Total | $119.4M |
Shares reported on the most recent Form 4, priced at the 2026-09-14 close. 10 holdings could not be priced and are excluded from the total.