Profile
| Role | Insider |
|---|---|
| Notability | 20/100 |
Board memberships
- Guardian Pharmacy Services, Inc.
- NNN REIT, INC.
Updated Jul 16, 2026
COSLER STEVEN D has filed 1 SEC Form 4 filing across 1 company in the last 90 days — buying. Lifetime open-market purchases: $348K. Historical track record: 3/5 stars across 3 tracked purchases.
| Role | Insider |
|---|---|
| Notability | 20/100 |
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 | ★★★☆☆ (3/5) |
|---|---|
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 6667% |
| 90-day win rate | 6667% |
| Avg 5-day return | +310.27% |
| Avg 30-day return | +53.39% |
| Avg 90-day return | +1218.46% |
| Best 30-day return | +129.87% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-07 | GRDN | Guardian Pharmacy Services, Inc. | A — Grant or award | 4.0K | $0.00 | |
| 2026-02-02 | NNN | NNN REIT, INC. | A — Grant or award | 1.6K | $41.82 | $66K |
| 2025-12-05 | GRDN | Guardian Pharmacy Services, Inc. | P — Open-market purchase | 3.4K | $29.61 | $100K |
| 2025-11-04 | NNN | NNN REIT, INC. | A — Grant or award | 1.6K | $40.84 | $65K |
| 2025-07-31 | NNN | NNN REIT, INC. | A — Grant or award | 1.5K | $42.10 | $63K |
| 2025-05-09 | GRDN | Guardian Pharmacy Services, Inc. | A — Grant or award | 3.9K | $0.00 | |
| 2025-04-30 | NNN | NNN REIT, INC. | A — Grant or award | 1.5K | $41.38 | $62K |
| 2024-11-20 | GRDN | Guardian Pharmacy Services, Inc. | P — Open-market purchase | 7.0K | $21.22 | $149K |
| 2024-11-01 | NNN | NNN REIT, INC. | A — Grant or award | 2.4K | $45.98 | $110K |
| 2024-10-01 | GRDN | Guardian Pharmacy Services, Inc. | A — Grant or award | 3.6K | $0.00 | |
| 2024-10-01 | GRDN | Guardian Pharmacy Services, Inc. | P — Open-market purchase | 7.1K | $14.00 | $100K |
COSLER STEVEN D is a corporate insider — currently tracked as Insider of Guardian Pharmacy Services, Inc. (GRDN). 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: 3 open-market purchases ($348K) and 0 open-market sales () across all tracked filings.
Across 3 tracked purchases, COSLER STEVEN D averaged +53.4% avg 30-day return with a 6667% 30-day win rate. InsiderAlpha rates the track record at 3/5 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 COSLER STEVEN D profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.