Career & Filing History
Every role Arthur H. Amron has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
Arthur H. Amron is Director at NEPHROS INC (NEPH). SEC records also connect Amron to MAMMOTH ENERGY SERVICES, INC. (TUSK). Amron has reported 8 insider filings with the SEC since 2024. The most recent filing was in August 2026.
Every role Arthur H. Amron has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
NEPHROS INC (NEPH)2 filingsMAMMOTH ENERGY SERVICES, INC. (TUSK)1 filingLatest filing:
Arthur H. Amron is Director of NEPHROS INC (NEPH). 9 SEC Form 4 filings on record going back to 2024, most recently on 16 September 2026. Most recent open-market trade: bought $7K of TUSK on 15 June 2026. Lifetime open-market purchases: $35K. Historical track record: 1/5 stars across 5 tracked purchases.
Every recent SEC Form 4 transaction Arthur H. Amron has reported, most recent first.
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 | ★☆☆☆☆ (1/5) |
| Total purchases tracked | 5 |
| Purchases with forward-return data | 5 |
| 30-day win rate | 0% |
| 90-day win rate | 0% |
| Avg 5-day return | +0.62% |
| Avg 30-day return | -9.09% |
| Avg 90-day return | -8.06% |
| Best 30-day return |
InsiderAlpha's records for Arthur H. Amron go back to 2024: 9 primary Form 4 filings, an average of 3.0 per year. The typical open-market purchase is $7K (5 buys totaling $35K). The largest single buy on record is $10K of TUSK in 2026. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Insiders who reported open-market trades in the last 12 months at the companies Arthur H. Amron 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.
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Arthur H. Amron is a corporate insider, tracked as Director of NEPHROS INC (NEPH). InsiderAlpha holds 9 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 5 open-market purchases ($35K) and 0 open-market sales across all tracked filings.
Across 5 tracked purchases, Arthur H. Amron averaged -9.1% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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$NEPH NEPHROS INC17.7K shares @ $0.00-
| +0.00% |