West 8 Limited Partnership Ventures, 10% Owner at ALDER BIOPHARMACEUTICALS INC (ALDR), bought 3,469,528 shares at $10.00 ($2.5M) on 2014-05-13, disclosed to the SEC on 2014-05-15.
Open-market purchase of $2.5M ALDR by 10% Owner. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $0.00 | 3,219,528 | $0 | 0.0% |
| 2 | $10.00 | 250,000 | $2.5M | 100.0% |
| Total | $0.72 avg | 3,469,528 | $2.5M | 100% |