Josef H. von Rickenbach is Chairman at PAREXEL INTERNATIONAL CORP (PRXL). They have made 18 open-market trades across 3 companies since 2006, most recently 2026-05-27.
CIK 0001007706
6 open-market purchases totalling $786K since 2019, against 12 sales. Across 6 scored buys the stock is down 30.3% at ninety days, and 34.7 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| PRXL | 503,329 | $44.3M |
| ALRN | 445,460 | $940K |
| RNTX | 62,514 | $37K |
| VORB | 125,000 | $10K |
| Total | $45.3M |
Shares reported on the most recent Form 4, priced at the 2026-05-28 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 67% | 0% | 0% |
| Avg Move | +13.3% | -28.0% | -30.3% |
| Alpha | +13.7% | -26.7% | -34.7% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RNTX | BUY | 2026-05-21 | 2026-05-28 | $1.05 | $50K | -16.3% | -5.5% | -26.7% |
| ALRN | BUY | 2020-06-08 | 2020-06-09 | $1.10 | $500K | +1.7% | -6.7% | -3.3% |
| ALRN | BUY | 2019-09-12 | 2019-09-16 | $0.98 | $197K | -15.3% | -56.8% | -49.8% |
| ALRN | BUY | 2019-09-04 | 2019-09-05 | $0.71 | $16K | +38.7% | -37.2% | -38.9% |
| ALRN | BUY | 2019-08-30 | 2019-09-04 | $0.72 | $20K | +31.4% | -33.4% | -35.6% |
| ALRN | BUY | 2019-08-29 | 2019-09-03 | $0.77 | $3K | +39.5% | -28.6% | -27.3% |
| PRXL | SELL | 2015-02-13 | 2015-02-17 | $62.53 | $4.1M | -3.3% | -0.4% | -0.4% |
| PRXL | SELL | 2014-02-10 | 2014-02-12 | $49.76 | $2.5M | -3.3% | -0.4% | -0.4% |
| PRXL | SELL | 2014-02-07 | 2014-02-10 | $49.70 | $2.5M | -3.3% | -0.4% | -0.4% |
| PRXL | SELL | 2013-05-06 | 2013-05-08 | $44.25 | $4.4M | -3.3% | -0.4% | -0.4% |
| PRXL | SELL | 2012-11-26 | 2012-11-28 | $31.64 | $3.5M | -3.3% | -0.4% | -0.4% |
| PRXL | SELL | 2009-05-27 | 2009-05-29 | $10.47 | $81K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-09-30 | 2008-10-01 | $28.34 | $113K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-09-23 | 2008-09-24 | $29.35 | $117K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-09-16 | 2008-09-18 | $32.18 | $129K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-09-09 | 2008-09-11 | $31.20 | $125K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-09-02 | 2008-09-04 | $31.87 | $127K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-08-26 | 2008-08-27 | $31.62 | $126K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-08-19 | 2008-08-20 | $31.73 | $127K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-08-12 | 2008-08-14 | $33.11 | $530K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-08-05 | 2008-08-07 | $28.75 | $426K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-07-29 | 2008-07-31 | $27.56 | $408K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-07-22 | 2008-07-24 | $27.64 | $409K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-07-15 | 2008-07-17 | $25.40 | $376K | -3.3% | -0.4% | -0.4% |
| PRXL | SELL · 10b5-1 | 2008-07-08 | 2008-07-10 | $25.73 | $381K | -3.3% | -0.4% | -0.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.