Michael J. Karber
Insider
First SEC filing: Jan. 2, 2020 · Latest: Jan. 2, 2020
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | GPMT | M | 19,213 | · | · | 132,823 Direct | +16.91% | Acquired | (price as of 2026-10-02) |
| March 15, 2026 | GPMT | F | 9,452 | $1.57 | $14,840 | 123,371 Direct | -7.12% | Disposed | -51.5% (price as of 2026-10-02) |
| March 15, 2026 | GPMT | M | 19,213 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 5, 2026 | GPMT | A | 73,294 | · | · | 73,294 Direct | · | Acquired | (price as of 2026-10-02) |
| March 5, 2026 | GPMT | A | 3,458 | · | · | 115,280 Direct | +3.09% | Acquired | (price as of 2026-10-02) |
| March 5, 2026 | GPMT | F | 1,670 | $1.75 | $2,922 | 113,610 Direct | -1.45% | Disposed | -56.5% (price as of 2026-10-02) |
| March 1, 2026 | GPMT | M | 22,489 | · | · | 123,950 Direct | +22.17% | Acquired | (price as of 2026-10-02) |
| March 1, 2026 | GPMT | F | 12,128 | $1.74 | $21,103 | 111,822 Direct | -9.78% | Disposed | -56.3% (price as of 2026-10-02) |
| March 1, 2026 | GPMT | M | 22,489 | · | · | 22,490 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Feb. 27, 2026 | GPMT | M | 24,887 | · | · | 109,185 Direct | +29.52% | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2026 | GPMT | M | 12,831 | · | · | 122,016 Direct | +11.75% | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2026 | GPMT | F | 20,555 | $1.74 | $35,766 | 101,461 Direct | -16.85% | Disposed | -56.3% (price as of 2026-10-02) |
| Feb. 27, 2026 | GPMT | M | 24,887 | · | · | 49,776 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Feb. 27, 2026 | GPMT | M | 12,831 | · | · | 25,663 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2025 | GPMT | M | 32,532 | · | · | 100,303 Direct | +48.00% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2025 | GPMT | F | 16,005 | $2.41 | $38,572 | 84,298 Direct | -15.96% | Disposed | -68.4% (price as of 2026-10-02) |
| Dec. 31, 2025 | GPMT | M | 32,532 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 5, 2025 | GPMT | A | 38,494 | · | · | 38,494 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2025 | GPMT | M | 19,213 | · | · | 77,223 Direct | +33.12% | Acquired | (price as of 2026-10-02) |
| March 15, 2025 | GPMT | F | 9,452 | $2.83 | $26,749 | 67,771 Direct | -12.24% | Disposed | -73.1% (price as of 2026-10-02) |
| March 15, 2025 | GPMT | M | 19,213 | · | · | 19,213 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| March 1, 2025 | GPMT | M | 22,489 | · | · | 70,266 Direct | +47.07% | Acquired | (price as of 2026-10-02) |
| March 1, 2025 | GPMT | F | 12,256 | $2.96 | $36,278 | 58,010 Direct | -17.44% | Disposed | -74.3% (price as of 2026-10-02) |
| March 1, 2025 | GPMT | M | 22,489 | · | · | 44,979 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Feb. 27, 2025 | GPMT | A | 74,663 | · | · | 74,663 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2025 | GPMT | M | 8,179 | · | · | 51,837 Direct | +18.73% | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2025 | GPMT | F | 4,060 | $2.90 | $11,774 | 47,777 Direct | -7.83% | Disposed | -73.8% (price as of 2026-10-02) |
| Feb. 16, 2025 | GPMT | M | 8,179 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 21, 2024 | GPMT | A | 80,128 | · | · | 80,128 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2024 | GPMT | M | 19,212 | · | · | 52,178 Direct | +58.28% | Acquired | (price as of 2026-10-02) |
| March 15, 2024 | GPMT | F | 8,520 | $4.79 | $40,811 | 43,658 Direct | -16.33% | Disposed | -84.1% (price as of 2026-10-02) |
| March 15, 2024 | GPMT | M | 19,212 | · | · | 38,426 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| March 1, 2024 | GPMT | A | 67,468 | · | · | 67,468 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2024 | GPMT | M | 8,178 | · | · | 37,026 Direct | +28.35% | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2024 | GPMT | F | 4,060 | $4.71 | $19,123 | 32,966 Direct | -10.97% | Disposed | -83.8% (price as of 2026-10-02) |
| Feb. 16, 2024 | GPMT | M | 8,178 | · | · | 8,179 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Jan. 1, 2024 | GPMT | M | 7,191 | · | · | 32,418 Direct | +28.51% | Acquired | (price as of 2026-10-02) |
| Jan. 1, 2024 | GPMT | F | 3,570 | $5.94 | $21,206 | 28,848 Direct | -11.01% | Disposed | -87.2% (price as of 2026-10-02) |
| Jan. 1, 2024 | GPMT | M | 7,191 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 15, 2023 | GPMT | A | 57,638 | · | · | 57,638 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2023 | GPMT | M | 8,178 | · | · | 29,247 Direct | +38.82% | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2023 | GPMT | F | 4,020 | $6.12 | $24,602 | 25,227 Direct | -13.74% | Disposed | -87.6% (price as of 2026-10-02) |
| Feb. 16, 2023 | GPMT | M | 8,178 | · | · | 16,357 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Jan. 29, 2023 | GPMT | F | 1,702 | $6.40 | $10,893 | 21,069 Direct | -7.47% | Disposed | -88.1% (price as of 2026-10-02) |
| Jan. 1, 2023 | GPMT | M | 7,190 | · | · | 26,340 Direct | +37.55% | Acquired | (price as of 2026-10-02) |
| Jan. 1, 2023 | GPMT | F | 3,569 | $5.36 | $19,130 | 22,771 Direct | -13.55% | Disposed | -85.8% (price as of 2026-10-02) |
| Jan. 1, 2023 | GPMT | M | 7,190 | · | · | 7,191 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Feb. 16, 2022 | GPMT | A | 24,535 | · | · | 24,535 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 29, 2022 | GPMT | F | 1,489 | $11.94 | $17,779 | 19,150 Direct | -7.21% | Disposed | -93.6% (price as of 2026-10-02) |
| Jan. 28, 2022 | GPMT | F | 894 | $11.94 | $10,674 | 20,639 Direct | -4.15% | Disposed | -93.6% (price as of 2026-10-02) |
| Jan. 1, 2022 | GPMT | M | 7,190 | · | · | 25,102 Direct | +40.14% | Acquired | (price as of 2026-10-02) |
| Jan. 1, 2022 | GPMT | F | 3,569 | $11.71 | $41,793 | 21,533 Direct | -14.22% | Disposed | -93.5% (price as of 2026-10-02) |
| Jan. 1, 2022 | GPMT | M | 7,190 | · | · | 14,381 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Jan. 29, 2021 | GPMT | F | 2,897 | $9.32 | $27,000 | 17,912 Direct | -13.92% | Disposed | -91.8% (price as of 2026-10-02) |
| Jan. 29, 2021 | GPMT | A | 21,571 | · | · | 21,571 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 28, 2021 | GPMT | F | 900 | $9.64 | $8,676 | 20,809 Direct | -4.15% | Disposed | -92.1% (price as of 2026-10-02) |
| Dec. 31, 2020 | GPMT | A | 32,532 | · | · | 32,532 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 30, 2020 | GPMT | S 10b5-1 | 1,155 | $18.40 | $21,252 | 21,709 Direct | -5.05% | Disposed | -95.9% (price as of 2026-10-02) |
| Jan. 29, 2020 | GPMT | S 10b5-1 | 901 | $18.44 | $16,614 | 12,578 Direct | -6.68% | Disposed | -95.9% (price as of 2026-10-02) |
| Jan. 29, 2020 | GPMT | A | 10,286 | · | · | 22,864 Direct | +81.78% | 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 |
|---|---|---|---|---|---|---|---|
| March 15, 2026 | GPMT | Restricted Stock Units | Common Stock | · | March 15, 2026 | 19,213 | Disposed |
| March 5, 2026 | GPMT | Restricted Stock Units | Common Stock | · | March 5, 2029 | 73,294 | Acquired |
| March 1, 2026 | GPMT | Restricted Stock Units | Common Stock | · | March 1, 2027 | 22,489 | Disposed |
| Feb. 27, 2026 | GPMT | Restricted Stock Units | Common Stock | · | Feb. 27, 2028 | 24,887 | Disposed |
| Feb. 27, 2026 | GPMT | Restricted Stock Units | Common Stock | · | Feb. 27, 2028 | 12,831 | Disposed |
| Dec. 31, 2025 | GPMT | Restricted Stock Units | Common Stock | · | Dec. 31, 2025 | 32,532 | Disposed |
| June 5, 2025 | GPMT | Restricted Stock Units | Common Stock | · | Feb. 27, 2028 | 38,494 | Acquired |
| March 15, 2025 | GPMT | Restricted Stock Units | Common Stock | · | March 15, 2026 | 19,213 | Disposed |
| March 1, 2025 | GPMT | Restricted Stock Units | Common Stock | · | March 1, 2027 | 22,489 | Disposed |
| Feb. 27, 2025 | GPMT | Restricted Stock Units | Common Stock | · | Feb. 27, 2028 | 74,663 | Acquired |
| Feb. 16, 2025 | GPMT | Restricted Stock Units | Common Stock | · | Feb. 16, 2025 | 8,179 | Disposed |
| June 21, 2024 | GPMT | Restricted Stock Units | Common Stock | · | June 21, 2027 | 80,128 | Acquired |
| March 15, 2024 | GPMT | Restricted Stock Units | Common Stock | · | March 15, 2026 | 19,212 | Disposed |
| March 1, 2024 | GPMT | Restricted Stock Units | Common Stock | · | March 1, 2027 | 67,468 | Acquired |
| Feb. 16, 2024 | GPMT | Restricted Stock Units | Common Stock | · | Feb. 16, 2025 | 8,178 | Disposed |
| Jan. 1, 2024 | GPMT | Restricted Stock Units | Common Stock | · | Jan. 1, 2024 | 7,191 | Disposed |
| March 15, 2023 | GPMT | Restricted Stock Units | Common Stock | · | March 15, 2026 | 57,638 | Acquired |
| Feb. 16, 2023 | GPMT | Restricted Stock Units | Common Stock | · | Feb. 16, 2025 | 8,178 | Disposed |
| Jan. 1, 2023 | GPMT | Restricted Stock Units | Common Stock | · | Jan. 1, 2024 | 7,190 | Disposed |
| Feb. 16, 2022 | GPMT | Restricted Stock Units | Common Stock | · | Feb. 16, 2025 | 24,535 | Acquired |
| Jan. 1, 2022 | GPMT | Restricted Stock Units | Common Stock | · | Jan. 1, 2024 | 7,190 | Disposed |
| Jan. 29, 2021 | GPMT | Restricted Stock Units | Common Stock | · | Jan. 1, 2024 | 21,571 | Acquired |
| Dec. 31, 2020 | GPMT | Restricted Stock Units | Common Stock | · | Dec. 31, 2025 | 32,532 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 2, 2020 | GPMT | Common Stock | 13,479 | Direct |