Arthur J Klausner
CIK 1207790 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 8, 2018 · Latest: Jan. 8, 2018
On this page
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net:
$-343,889
+ 15 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
15 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 18, 2025 | MNPR | S | 4,660 | $67.06 | $312,500 | 9,223 Direct | -33.57% | Disposed | 67.2% (price as of 2026-08-25) |
| Dec. 18, 2025 | MNPR | S | 461 | $68.09 | $31,389 | 8,762 Direct | -5.00% | Disposed | 64.7% (price as of 2026-08-25) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 2, 2025 | MNPR | Stock Options | Common Stock (2,924) | $75.94 | Dec. 2, 2035 | 2,924 | Acquired |
| March 4, 2025 | MNPR | Stock Options | Common Stock (11,365) | $31.70 | March 4, 2035 | 11,365 | Acquired |
| Dec. 31, 2023 | MNPR | Restricted Stock Units | Common Stock (2,533) | — | — | 2,533 | Disposed |
| Sept. 30, 2023 | MNPR | Restricted Stock Units | Common Stock (2,533) | — | — | 2,533 | Disposed |
| June 30, 2023 | MNPR | Restricted Stock Units | Common Stock (2,534) | — | — | 2,534 | Disposed |
| March 31, 2023 | MNPR | Restricted Stock Units | Common Stock (2,533) | — | — | 2,533 | Disposed |
| Feb. 1, 2023 | MNPR | Stock Options | Common Stock (13,930) | $3.16 | Feb. 1, 2033 | 13,930 | Acquired |
| Feb. 1, 2023 | MNPR | Restricted Stock Units | Common Stock (10,133) | $0.00 | — | 10,133 | Acquired |
| Dec. 31, 2022 | MNPR | Restricted Stock Units | Common Stock (2,859) | — | — | 2,859 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.