Summary
Updated Aug 30, 2026
Martin Cohen is Director, 10% Owner of COHEN & STEERS, INC. (CNS). 8 SEC Form 4 filings on record going back to 2024, most recently on 6 July 2026. Most recent open-market trade: bought $773K of CNS on 20 November 2025. Lifetime open-market purchases: $5.98M. Historical track record: 4/5 stars across 4 tracked purchases.
Recent Transactions
12Every recent SEC Form 4 transaction Martin Cohen has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★★★☆ (4/5) |
| Total purchases tracked | 4 |
| Purchases with forward-return data | 4 |
| 30-day win rate | 100% |
| 90-day win rate | 100% |
| Avg 5-day return | +4.51% |
| Avg 30-day return | +5.49% |
| Avg 90-day return | +11.19% |
| Best 30-day return | +6.42% |
Trading Pattern
InsiderAlpha's records for Martin Cohen go back to 2024: 8 primary Form 4 filings, an average of 2.7 per year. The typical open-market purchase is $1.50M (4 buys totaling $5.98M). The largest single buy on record is $2.98M of CNS in 2025. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Martin Cohen files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Robert Hamilton Steers - $11.20M of CNS open-market activity in the last 12 months
- Francis C. Poli - $1.29M of CNS open-market activity in the last 12 months
- Jon Cheigh - $753K of CNS open-market activity in the last 12 months
- Daniel Noonan - $337K of CNS open-market activity in the last 12 months
- Elena Dulik - $91K of CNS open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Martin Cohen?
Martin Cohen is a corporate insider, tracked as Director, 10% Owner of COHEN & STEERS, INC. (CNS). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Martin Cohen submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Martin Cohen been buying or selling stock?
Recorded transactions: 4 open-market purchases ($5.98M) and 0 open-market sales across all tracked filings.
How accurate is Martin Cohen's historical track record?
Across 4 tracked purchases, Martin Cohen averaged +5.5% avg 30-day return with a 100% 30-day win rate. InsiderAlpha rates the track record at 4/5 stars.
Where can I see all of Martin Cohen's SEC filings?
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.
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