Robert C. Malenka
Insider
First SEC filing: Oct. 27, 2025 · Latest: Oct. 27, 2025
Insider at
Insider transactions
0 buys (P)
14 sells (S)
Net: $-1,599,229
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 15, 2026 | MPLT | S 10b5-1 | 8,593 | $26.90 | $231,152 | 316,466 Direct | -2.64% | Disposed | -63.5% (price as of 2026-10-02) |
| Feb. 24, 2026 | MPLT | S | 736 | $18.15 | $13,358 | 325,059 Direct | -0.23% | Disposed | -45.9% (price as of 2026-10-02) |
| Feb. 23, 2026 | MPLT | S | 10,788 | $18.39 | $198,391 | 326,271 Direct | -3.20% | Disposed | -46.6% (price as of 2026-10-02) |
| Feb. 23, 2026 | MPLT | S | 476 | $19.06 | $9,073 | 325,795 Direct | -0.15% | Disposed | -48.5% (price as of 2026-10-02) |
| Feb. 20, 2026 | MPLT | S | 2,195 | $18.03 | $39,576 | 337,059 Direct | -0.65% | Disposed | -45.5% (price as of 2026-10-02) |
| Feb. 13, 2026 | MPLT | S | 12,116 | $18.21 | $220,632 | 339,254 Direct | -3.45% | Disposed | -46.1% (price as of 2026-10-02) |
| Feb. 11, 2026 | MPLT | S | 241 | $18.00 | $4,338 | 351,370 Direct | -0.07% | Disposed | -45.4% (price as of 2026-10-02) |
| Feb. 10, 2026 | MPLT | S | 6,622 | $18.12 | $119,991 | 351,611 Direct | -1.85% | Disposed | -45.8% (price as of 2026-10-02) |
| Feb. 3, 2026 | MPLT | S | 1 | $18.00 | $18 | 358,233 Direct | 0.00% | Disposed | -45.4% (price as of 2026-10-02) |
| Feb. 2, 2026 | MPLT | S | 7,039 | $18.02 | $126,843 | 358,234 Direct | -1.93% | Disposed | -45.5% (price as of 2026-10-02) |
| Jan. 30, 2026 | MPLT | S | 6,612 | $18.11 | $119,743 | 365,273 Direct | -1.78% | Disposed | -45.8% (price as of 2026-10-02) |
| Jan. 29, 2026 | MPLT | S | 21,262 | $18.55 | $394,410 | 371,885 Direct | -5.41% | Disposed | -47.1% (price as of 2026-10-02) |
| Jan. 28, 2026 | MPLT | S | 5,860 | $18.61 | $109,055 | 393,811 Direct | -1.47% | Disposed | -47.2% (price as of 2026-10-02) |
| Jan. 28, 2026 | MPLT | S | 664 | $19.05 | $12,649 | 393,147 Direct | -0.17% | Disposed | -48.5% (price as of 2026-10-02) |
| Oct. 28, 2025 | MPLT | C | 3,895 | · | · | 31,672 Indirect | +14.02% | Acquired | (price as of 2026-10-02) |
| Oct. 28, 2025 | MPLT | C | 65,477 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-02) |
| Oct. 27, 2025 | MPLT | A | 34,390 | · | · | 399,671 Direct | +9.41% | Acquired | (price as of 2026-10-02) |
| Oct. 27, 2025 | MPLT | A | 139,610 | · | · | 139,610 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Oct. 28, 2025 | MPLT | Series C Preferred Stock | Voting Common Stock | · | · | 65,477 | Disposed |
| Oct. 27, 2025 | MPLT | Employee Stock Option (right to buy) | Voting Common Stock | $17.00 | Oct. 26, 2035 | 139,610 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 27, 2025 | MPLT | Voting Common Stock | 365,281 | Direct |
| Oct. 27, 2025 | MPLT | Voting Common Stock | 27,777 | Indirect |
| Oct. 27, 2025 | MPLT | Series C Preferred Stock | 3,895 | Indirect |
| Oct. 27, 2025 | MPLT | Stock Option (Right to Buy) | 25,892 | Direct |
| Oct. 27, 2025 | MPLT | Stock Option (Right to Buy) | 22,321 | Direct |