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Mark William Lowdell

CIK 1767037 · Chief Scientific Officer · last filed 2026-07-07

Mark William Lowdell is a Chief Scientific Officer who has filed 14 SEC Form 4 insider transactions across 1 company since 2019. The most recent filing, for INMB, was dated Jul 7, 2026. Across all open-market trades the lifetime net is −$535.7K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.4M across reported positions.

"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

$3.39M

Companies

1

Total Filings

14

Lifetime Open-Market Net

-$535.7K

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
INMB Chief Scientific Officer 1,518,017 $2.23 $3.39M -$535.7K 14 2026-07-07

Recent Filings

14 filings
Insider 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
2026-07-07 INMB Mixed +7,211 $10.1K EDGAR
2025-12-02 INMB Grant (A) — $0 EDGAR
2025-11-18 INMB Mixed — $0 EDGAR
2024-12-09 INMB Grant (A) — $0 EDGAR
2024-05-16 INMB Grant (A) — $0 EDGAR
2024-04-24 INMB Buy (P) +14,423 $120.0K EDGAR
2024-04-23 INMB Grant (A) +14,423 $120.0K EDGAR
2022-03-23 INMB Grant (A) +23,590 $198.9K EDGAR
2021-11-04 INMB Sell (S) −701 -$14.0K EDGAR
2021-10-29 INMB Sell (S) −2,357 -$47.1K EDGAR
Showing 1–10 of 14
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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.