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ARTHUR J KLAUSNER

CIK 1207790 · last filed 2025-12-19

ARTHUR J KLAUSNER is a corporate insider who has filed 27 SEC Form 4 insider transactions across 1 company since 2020. The most recent filing, for MNPR, was dated Jul 10, 2026. Across all open-market trades the lifetime net is −$343.9K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $66.6M 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

$66.64M

Companies

1

Total Filings

27

Lifetime Open-Market Net

-$343.9K

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
MNPR Director 620,302 $107.42 $66.64M -$343.9K 23 2025-12-19

Recent Filings

27 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
2026-07-10 MNPR Notice (144/A) −5,000 -$477.0K EDGAR
2026-07-07 MNPR Notice (144) −5,000 -$485.2K EDGAR
2025-12-19 MNPR Notice (144) −5,121 -$343.9K EDGAR
2025-12-19 MNPR Sell (S) −5,121 -$343.9K EDGAR
2025-12-17 MNPR Other (J) +7,710 $0 EDGAR
2025-12-08 MNPR Grant (A) — $0 EDGAR
2025-03-07 MNPR Grant (A) — $0 EDGAR
2024-01-03 MNPR Exer (M) +2,533 $0 EDGAR
2023-10-03 MNPR Exer (M) +2,533 $0 EDGAR
2023-07-03 MNPR Exer (M) +2,534 $0 EDGAR
Showing 1–10 of 27
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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.