Valentine Keith Insider Trading Activity
Valentine Keith has been net-buying over the last 12 months with 3 purchases and 0 sales across 1 company.
ATEC is the most-traded position with 3 trades. The largest single transaction was a purchase of ATEC for $421K on May 7, 2026.
Performance Scorecard
Forward stock performance after each transaction by Valentine Keith. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | +12.0% | — | 100% | 3 |
| 90 days | — | — | — | — |
| 120 days | — | — | — | — |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersATEC · Alphatec Holdings, Inc.
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Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| ATEC | Alphatec Holdings, Inc. | 3 | $996K |
Other insiders at Alphatec Holdings, Inc.
9 other tracked filers at ATEC.
COO
11
Trades
VP
9
Trades
GENERAL COUNSEL & CORP. SEC.
8
Trades
VP
7
Trades
Director
5
Trades
CEO
5
Trades
10%+ Owner
4
Trades
10%+ Owner
4
Trades
10%+ Owner
4
Trades