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US INSIDER PROFILE · NON-SCORING RESEARCH
Landesberg Stuart
Director
Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001930721
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 4
- Purchases · 24M
- 5
- Average purchase
- $8.9K
- Median purchase
- $5.5K
- Gross purchase value
- $44.3K
Companies: Grove Collaborative Holdings, Inc.
5 SEC accession(s) · 0 joint-owner event(s). Values are reported Form 4 transaction values in USD.
Qualifying purchase disclosures
| Published | Company | Ticker | Role | Reported value | SEC source |
|---|---|---|---|---|---|
| 2026-09-15 | Grove Collaborative Holdings, Inc. | GROV | Director | $15.8K | Open filing |
| 2026-09-11 | Grove Collaborative Holdings, Inc. | GROV | Director | $5.1K | Open filing |
| 2026-09-09 | Grove Collaborative Holdings, Inc. | GROV | Director | $248 | Open filing |
| 2026-09-04 | Grove Collaborative Holdings, Inc. | GROV | Director | $5.5K | Open filing |
| 2025-05-23 | Grove Collaborative Holdings, Inc. | GROV | Director | $17.7K | Open filing |
Post-purchase outcomes
Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.
No completed point-in-time price outcome is available yet.
Research patterns
- First purchase in 12M
- 1/4
- Large purchase ≥ $100k
- 0/5
- Cluster buying · 15D
- 5/5
- Buying the dip
- 0/—
Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.
Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.