Joshua Silverman
CIK 1524858 · Executive Chairman · last filed 2026-06-05
"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
$1.45M
Companies
16
Total Filings
84
Lifetime Open-Market Net
$136.1K
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 |
|---|---|---|---|---|---|---|---|
| TAOX | Executive Chairman | 126,681 | $3.38 | $428.2K | $0 | 3 | 2026-05-19 |
| QCLS | Executive Chairman | 262,191 | $2.84 | $744.6K | $0 | 3 | 2026-04-15 |
| PMCB | CEO and President | 466,250 | $0.59 | $275.1K | $80.5K | 3 | 2026-01-07 |
| StableX Technologies, Inc. (SBLX) Delisted | Chief Executive Officer | — | $3.10 | — | $0 | 1 | 2025-10-31 |
| FEMY | Director | — | $2.92 | — | $0 | 3 | 2025-06-27 |
| Petros Pharmaceuticals, Inc. (PTPI) Delisted | Director | 40,449 | $0.01 | $251 | $0 | 9 | 2025-02-21 |
| StableX Technologies, Inc. (AYRO) Delisted | Executive Chairman | 189,469 | $7.08 | $1.34M | -$237.8K | 11 | 2024-12-02 |
| TAO Synergies Inc. (SNPX) Delisted | Director | 1,530 | $24.55 | $37.6K | $60.7K | 10 | 2024-04-10 |
| Q/C TECHNOLOGIES, INC. (MYMD) Delisted | Director | 2,959 | $1.82 | $5.4K | $103.4K | 4 | 2023-06-09 |
| NTRP | Director | 0 | $1.64 | $0 | $107.8K | 9 | 2020-12-03 |
| Q/C TECHNOLOGIES, INC. (AKER) Delisted | Director | 2,600 | $4.94 | $12.8K | $0 | 3 | 2020-09-11 |
| StableX Technologies, Inc. (DCAR) Delisted | Director | 7,577 | — | — | $37.9K | 5 | 2019-08-29 |
| Marker Therapeutics, Inc. (TPIV) Delisted | Director | 170,554 | — | — | $0 | 4 | 2018-10-17 |
| StableX Technologies, Inc. (WPCS) Delisted | Director | — | — | — | $0 | 1 | 2017-05-02 |
| NATIONAL HOLDINGS CORP (NHLD) Delisted | Director | 828,646 | $3.25 | $2.69M | $0 | 1 | 2016-09-13 |
| XWELL, Inc. (VRNG.WS) Delisted | 10%+ Owner | 901,203 | — | — | -$16.4K | 2 | 2011-12-19 |
Recent Filings · Page 3 of 9
84 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 |
|---|---|---|---|---|---|
| 2023-08-01 | StableX Technologies, Inc. (SBLX) Delisted | Notice (144) | −12,740 | -$10.4K | EDGAR |
| 2023-06-09 | Q/C TECHNOLOGIES, INC. (MYMD) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-05-05 | StableX Technologies, Inc. (AYRO) Delisted | Sell (S) | −11,927 | -$5.8K | EDGAR |
| 2023-05-03 | StableX Technologies, Inc. (SBLX) Delisted | Notice (144) | −11,927 | -$5.8K | EDGAR |
| 2023-04-28 | Petros Pharmaceuticals, Inc. (PTPI) Delisted | Exer (M) | +6,722 | $0 | EDGAR |
| 2023-04-12 | Petros Pharmaceuticals, Inc. (PTPI) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-03-31 | TAO Synergies Inc. (SNPX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-02-03 | StableX Technologies, Inc. (AYRO) Delisted | Mixed | +190,162 | -$5.1K | EDGAR |
| 2023-01-25 | Petros Pharmaceuticals, Inc. (PTPI) Delisted | Exer (M) | +2,515 | $0 | EDGAR |
| 2022-12-20 | TAO Synergies Inc. (SNPX) Delisted | Sell (S) | −19,012 | -$22.3K | 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.