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Mark Mortenson

CIK 1835427 · Chief Science Officer · last filed 2026-06-15

Mark Mortenson is a Chief Science Officer who has filed 17 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for CLNN, was dated Jun 15, 2026. Across all open-market trades the lifetime net is +$47.4K, making them a net buyer over the disclosed history.

"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

$0

Companies

2

Total Filings

17

Lifetime Open-Market Net

$47.4K

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
CLNN Chief Science Officer — $4.99 — $0 2 2026-06-15
Clene Inc. (CLNNW) Delisted Chief Science Officer 28,949 $0.00 $52 $47.4K 15 2025-09-30

Recent Filings

17 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
2026-06-15 CLNN Grant (A) — $0 EDGAR
2026-01-23 CLNN Grant (A) — $0 EDGAR
2025-09-30 Clene Inc. (CLNNW) Delisted Grant (A) — $0 EDGAR
2025-09-29 Clene Inc. (CLNNW) Delisted Grant (A) — $0 EDGAR
2025-09-19 Clene Inc. (CLNNW) Delisted Grant (A) — $0 EDGAR
2025-02-25 Clene Inc. (CLNNW) Delisted Grant (A) — $0 EDGAR
2024-10-01 Clene Inc. (CLNNW) Delisted Mixed +20,512 $97.4K EDGAR
2024-08-19 Clene Inc. (CLNNW) Delisted Grant (A) — $0 EDGAR
2024-06-10 Clene Inc. (CLNNW) Delisted Grant (A) — $0 EDGAR
2023-07-03 Clene Inc. (CLNNW) Delisted Grant (A) — $0 EDGAR
Showing 1–10 of 17
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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.