NXL · Insider Trading

Nexalin Technology, Inc. Common Stock

Every open-market purchase and sale reported by NXL officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
25
code P
Sales
1
code S
Reporting Insiders
7
current holders
NXL — Recent Form 4 Transactions (latest 2025-12-23)
FiledInsiderRole TypeSharesValue
2025-12-23 Carolyn Hamby Shelton Sr. VP - Quality - Regulatory A +100,000 deriv. —
2025-12-23 Mark White CEO A +1,000,000 deriv. —
2025-12-23 Justin Van Fleet CFO A +100,000 deriv. —
2025-12-23 Alan Kazden Director A +100,000 deriv. —
2025-12-23 David Owens Chief Medical Officer A +1,000,000 deriv. —
2025-12-23 Ben Hu Director A +100,000 deriv. —
2025-09-30 Alan Kazden Director A +36,459 —
2025-09-30 Leonard Osser 10%+ Owner A +166,666 —
2025-09-30 Ben Hu Director A +36,459 —
2025-09-30 David Owens Chief Medical Officer A +36,459 —
2025-09-12 David Owens Chief Medical Officer A +303,125 deriv. —
2025-09-12 Marilyn Elson 10%+ Owner Sell −46,300 deriv. —
2025-09-12 Carolyn Hamby Shelton Sr. VP - Quality - Regulatory A +20,000 deriv. —
2025-07-21 Leonard Osser — A +600,000 deriv. —
2025-03-13 Carolyn Hamby Shelton Sr. VP - Quality, Regulatory Buy +6,000 +$13.20K
2025-02-27 Mark White President and CEO A +1,387,024 deriv. —
2025-02-27 David Owens Chief Medical Officer A +919,184 deriv. —
2025-02-05 David Owens Chief Medical Officer Buy +1,000 +$3.10K
2025-02-04 David Owens Chief Medical Officer Buy +1,000 +$2.98K
2025-01-29 David Owens Chief Medical Officer Buy +1,500 +$4.05K
2025-01-24 David Owens Chief Medical Officer Buy +3,000 +$7.70K
2024-10-30 David Owens Chief Medical Officer Buy +500 +$1.09K
2024-10-02 Ben Hu Director A +175,000 —
2024-10-02 Marilyn Elson 10%+ Owner A +1,400,000 —
2024-10-02 Leslie Bernhard Director A +49,838 —
2024-09-25 Leonard Osser — A +1,400,000 —
2024-09-25 Leonard Osser — Buy +72,000 deriv. —
2024-08-15 David Owens Chief Medical Officer Buy +1,000 +$950
2024-07-01 David Owens Chief Medical Officer Buy +1,000 +$1.75K
2024-06-21 David Owens Chief Medical Officer Buy +1,619 +$1.15K
2024-06-12 David Owens Chief Medical Officer Buy +3,000 +$1.92K
2023-10-05 Alan Kazden Director Buy +2,500 deriv. —
2023-10-05 Mark White President/CEO Buy +25,000 deriv. —
2023-10-05 Leonard Osser — Buy +19,000 deriv. —
2023-10-05 David Owens Chief Medical Officer Buy +2,500 deriv. —
2023-06-30 Alan Kazden Director Buy +2,500 +$10.38K
2023-06-30 Rick Morad Director Buy +2,500 +$10.38K
2023-06-30 Mark White President/CEO Buy +25,000 +$103.75K
2022-09-29 Marilyn Elson Ms. Elson serves as CFO Buy +19,000 +$21.28K
2022-09-22 Mark White President/CEO Buy +25,000 +$103.75K
2022-09-20 David Owens Chief Medical Officer Buy +2,500 +$10.38K
2022-09-20 Mark White President/CEO Buy +2,500 +$10.38K
2022-09-20 Alan Kazden Director Buy +2,500 +$10.38K
2022-09-20 Rick Morad Director Buy +2,500 +$10.38K
2022-09-20 Marilyn Elson Ms. Elson serves as CFO Buy +72,000 +$298.80K
2007-04-20 Norman Gold Director U −17,153 −$568.62K
2007-04-20 CPT Manager LTD 10%+ Owner J −45,601,265 +$877.30M
2007-04-20 Glenn J Rufrano Chief Executive Officer U −498,130 −$16.51M
2007-04-20 Matthew Goldstein Director U −5,464 −$181.15K
2007-04-20 Raymond H Bottorf Director U −9,789 −$324.52K
NXL — Current Insider Holders
InsiderRole Shares HeldValue
Marilyn Elson Ms. Elson serves as CFO 79,016 $135.12K
Leonard Osser 10%+ Owner 53,953 $92.26K
Ben Hu Director 12,570 $21.49K
Mark White CEO 10,304 $17.62K
David Owens Chief Medical Officer 6,375 $10.90K
Alan Kazden Director 3,986 $6.82K
Carolyn Hamby Shelton Sr. VP - Quality - Regulatory 1,000 $1.71K
NXL Insider Trading FAQ
Who are the insiders at NXL?
7 officers, directors and 10%+ beneficial owners currently report holdings in NXL via SEC Form 4.
Are NXL insiders buying or selling?
Across the 50 most recent Form 4 filings for NXL, 25 were open-market purchases (code P) and 1 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is NXL insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent NXL filing is dated 2025-12-23.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the NXL quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.