Arthur H Amron
CIK 1179697 · last filed 2026-06-15
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$810.5K
Companies
4
Total Filings
43
Lifetime Open-Market Net
$111.9K
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TUSK | Director | 67,135 | $3.39 | $227.6K | $83.6K | 13 | 2026-06-15 |
| NEPH | Director | 138,456 | $4.21 | $582.9K | $28.3K | 12 | 2026-06-12 |
| Rhino Resource Partners LP (RNO) Delisted | Director | 12,199 | — | — | $0 | 3 | 2013-01-03 |
| NEPHROS INC (NEP) Delisted | Director | — | $10.54 | — | $0 | 1 | 2007-12-04 |
Recent Filings · Page 2 of 5
43 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-05-30 | NEPH | Buy (P) | +5,000 | $11.2K | EDGAR |
| 2024-05-16 | NEPH | Grant (A) | — | $0 | EDGAR |
| 2024-03-14 | NEPH | Mixed | +98,463 | $17.1K | EDGAR |
| 2024-03-14 | TUSK | Buy (P) | +3,000 | $11.2K | EDGAR |
| 2023-12-15 | NEPH | Grant (A) | +9,291 | $0 | EDGAR |
| 2023-06-08 | TUSK | Grant (A) | +23,810 | $0 | EDGAR |
| 2023-01-09 | NEPH | Grant (A) | +27,613 | $0 | EDGAR |
| 2022-06-30 | TUSK | Grant (A) | +45,662 | $0 | EDGAR |
| 2021-12-16 | NEPH | Grant (A) | +4,582 | $0 | EDGAR |
| 2021-06-04 | TUSK | Grant (A) | +25,641 | $0 | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.