Updated Jul 16, 2026
Griffey Michael Sean has filed 1 SEC Form 4 filing across 1 company in the last 90 days — buying. Lifetime open-market purchases: $3.54M. Historical track record: 1/5 stars across 20 tracked purchases.
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★☆☆☆☆ (1/5) |
|---|---|
| Total purchases tracked | 20 |
| Purchases with forward-return data | 20 |
| 30-day win rate | 0% |
| 90-day win rate | 0% |
| Avg 5-day return | -916.42% |
| Avg 30-day return | -2011.08% |
| Avg 90-day return | -3965.75% |
| Best 30-day return | -854.22% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-08-14 | TTGT | TechTarget, Inc. | A — Grant or award | 750 | $6.00 | $4K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 11 | $20.10 | $221 |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 1.1K | $20.05 | $22K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 13.5K | $20.00 | $270K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 4.0K | $20.17 | $81K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 3.0K | $20.98 | $62K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 10.5K | $21.90 | $230K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 10.6K | $22.56 | $240K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 10.0K | $22.92 | $229K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 17.5K | $24.98 | $437K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 5.0K | $23.80 | $119K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 2.0K | $26.45 | $53K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 14.5K | $25.70 | $373K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 1.0K | $27.00 | $27K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 8.0K | $26.52 | $212K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 2.0K | $25.05 | $50K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 1.0K | $25.50 | $26K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 2.3K | $25.08 | $58K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 34.2K | $25.33 | $867K |
| 2024-12-26 | TTGT | TechTarget, Inc. | P — Open-market purchase | 4.2K | $24.33 | $102K |
Griffey Michael Sean is a corporate insider — currently tracked as Insider of TechTarget, Inc. (TTGT). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 20 open-market purchases ($3.54M) and 0 open-market sales () across all tracked filings.
Across 20 tracked purchases, Griffey Michael Sean averaged -2011.1% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live Griffey Michael Sean profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.