John Gordon Freund is Director at SI-BONE, Inc. (SIBN). They have made 38 open-market trades across 9 companies since 2007, most recently 2026-06-04.
CIK 0001296771
15 open-market purchases totalling $48.0M since 2007, against 23 sales. Across 10 scored buys the stock is down 2.0% at ninety days, and 1.7 points behind the S&P over the same stretch.
10 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 0% | 10% |
| Avg Move | -21.8% | -4.7% | -2.0% |
| Alpha | -16.4% | -4.6% | -1.7% |
| Scored | 10 | 10 | 10 |
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 56% | 44% | 67% |
| Avg Move | -5.2% | +2.4% | -2.4% |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| COLL | SELL | 2026-05-18 | 2026-05-20 | $34.05 | $681 | -10.8% | -2.2% | -16.6% |
| COLL | SELL | 2026-05-15 | 2026-05-18 | $34.54 | $143K | -0.0% | +0.2% | -16.5% |
| SIBN | SELL | 2025-08-08 | 2025-08-11 | $15.99 | $388K | +1.2% | +1.3% | +1.4% |
| COLL | SELL | 2025-08-08 | 2025-08-12 | $34.36 | $801K | +3.2% | +3.1% | +14.9% |
| COLL | SELL | 2025-06-09 | 2025-06-11 | $30.62 | $404K | +1.7% | +9.8% | +28.2% |
| SIBN | SELL | 2023-08-09 | 2023-08-11 | $20.54 | $616K | -0.2% | +1.3% | -24.0% |
| SIBN | SELL | 2021-06-14 | 2021-06-16 | $31.24 | $3.3M | +2.7% | -6.9% | -29.5% |
| SIBN | SELL | 2021-05-27 | 2021-06-01 | $30.38 | $4.3M | +1.3% | +2.9% | -23.5% |
| SIBN | SELL | 2021-05-24 | 2021-05-26 | $32.37 | $4.5M | -0.2% | +6.2% | -30.8% |
| SIBN | SELL | 2021-03-16 | 2021-03-18 | $30.38 | $23.6M | -3.5% | +4.9% | -3.8% |
| SIBN | SELL | 2021-03-11 | 2021-03-15 | $31.13 | $14.7M | -2.5% | +7.2% | +1.5% |
| SIBN | SELL | 2020-12-02 | 2020-12-04 | $23.33 | $4.6M | +26.4% | +23.4% | +22.9% |
| SIBN | SELL | 2020-10-19 | 2020-10-20 | $22.00 | $4.2M | -8.3% | -5.4% | +28.2% |
| STRO | SELL | 2020-09-18 | 2020-09-22 | $12.00 | $4.8M | -7.6% | +15.5% | +102.5% |
| STRO | SELL | 2020-09-11 | 2020-09-15 | $10.00 | $5.0M | -5.2% | +9.6% | +100.1% |
| STRO | SELL | 2020-08-19 | 2020-08-21 | $8.72 | $4.4M | +25.9% | +22.8% | +99.2% |
| SIBN | SELL | 2020-01-27 | 2020-08-14 | $21.50 | $21.5M | -3.7% | +7.5% | +8.1% |
| TTPH | SELL | 2019-12-10 | 2019-12-12 | $2.19 | $33K | +6.0% | +14.4% | -30.6% |
| SIBN | SELL | 2019-08-26 | 2019-08-27 | $18.40 | $5.6M | -1.4% | -2.5% | -7.1% |
| SIBN | SELL | 2019-08-21 | 2019-08-23 | $20.15 | $1.9M | +1.2% | +5.8% | -7.7% |
| SIBN | SELL | 2019-08-12 | 2019-08-14 | $18.25 | $7.3M | +3.7% | +2.1% | -4.5% |
| SIBN | BUY | 2018-10-19 | 2018-10-19 | $15.00 | $4.9M | -7.9% | -17.5% | +9.8% |
| XNPT | SELL | 2015-11-11 | 2015-11-13 | $6.68 | $6K | -16.8% | -3.6% | -29.6% |
| COLL | BUY | 2015-05-12 | 2015-05-13 | $12.00 | $1.8M | -43.4% | -1.8% | -1.8% |
| DRNA | SELL · 10b5-1 | 2015-02-20 | 2015-02-24 | $26.02 | $977K | -38.1% | -2.1% | -2.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| XNPT | 15,000 | $106K |
| TTPH | 6,012 | $13K |
| MAPP | 5,152 | — |
| MAKO | 2,245,249 | — |
| SIRT | 1,376,190 | — |
| Total | $147.9M |
Shares reported on the most recent Form 4, priced at the 2026-06-08 close. 3 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Scored | 9 | 9 | 9 |