Jolanda Howe
Insider
First SEC filing: May 9, 2023 · Latest: June 18, 2026
Insider at
Insider transactions
0 buys (P)
9 sells (S)
Net: $-5,553,171
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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 2, 2026 | MIRM | S 10b5-1 | 658 | $100.00 | $65,800 | 616 Direct | -51.65% | Disposed | -18.0% (price as of 2026-10-05) |
| Aug. 18, 2026 | MIRM | M | 40,000 | $6.27 | $250,800 | 41,274 Direct | +3139.72% | Acquired | 1207.6% (price as of 2026-10-05) |
| Aug. 18, 2026 | MIRM | S | 40,000 | $100.00 | $4,000,000 | 1,274 Direct | -96.91% | Disposed | -18.0% (price as of 2026-10-05) |
| Aug. 18, 2026 | MIRM | M | 40,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 3, 2026 | MIRM | S 10b5-1 | 1,840 | $105.29 | $193,734 | 1,274 Direct | -59.09% | Disposed | -22.1% (price as of 2026-10-05) |
| July 1, 2026 | MIRM | S 10b5-1 | 2,721 | $120.00 | $326,520 | 3,114 Direct | -46.63% | Disposed | -31.7% (price as of 2026-10-05) |
| June 17, 2026 | MIRM | S 10b5-1 | 2,594 | $101.95 | $264,458 | 5,835 Direct | -30.77% | Disposed | -19.6% (price as of 2026-10-05) |
| March 16, 2026 | MIRM | S | 4,732 | $91.98 | $435,249 | 8,429 Direct | -35.95% | Disposed | -10.9% (price as of 2026-10-05) |
| March 15, 2026 | MIRM | M | 2,658 | · | · | 7,161 Direct | +59.03% | Acquired | (price as of 2026-10-05) |
| March 15, 2026 | MIRM | M | 6,000 | · | · | 13,161 Direct | +83.79% | Acquired | (price as of 2026-10-05) |
| March 15, 2026 | MIRM | M | 2,658 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 15, 2026 | MIRM | M | 6,000 | · | · | 3,000 Direct | -66.67% | Disposed | (price as of 2026-10-05) |
| Feb. 2, 2026 | MIRM | S | 968 | $103.30 | $99,994 | 4,503 Direct | -17.69% | Disposed | -20.6% (price as of 2026-10-05) |
| Jan. 31, 2026 | MIRM | M | 1,771 | · | · | 5,471 Direct | +47.86% | Acquired | (price as of 2026-10-05) |
| Jan. 31, 2026 | MIRM | M | 1,771 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Jan. 28, 2026 | MIRM | A | 7,680 | · | · | 7,680 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 28, 2026 | MIRM | A | 4,970 | · | · | 4,970 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 28, 2026 | MIRM | A | 9,000 | · | · | 9,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 26, 2026 | MIRM | S | 842 | $96.19 | $80,992 | 3,700 Direct | -18.54% | Disposed | -14.8% (price as of 2026-10-05) |
| Jan. 23, 2026 | MIRM | M | 1,500 | · | · | 4,542 Direct | +49.31% | Acquired | (price as of 2026-10-05) |
| Jan. 23, 2026 | MIRM | M | 1,500 | · | · | 1,500 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Jan. 22, 2026 | MIRM | S | 926 | $93.33 | $86,424 | 3,042 Direct | -23.34% | Disposed | -12.2% (price as of 2026-10-05) |
| Jan. 21, 2026 | MIRM | M | 1,542 | · | · | 3,968 Direct | +63.56% | Acquired | (price as of 2026-10-05) |
| Jan. 21, 2026 | MIRM | M | 1,542 | · | · | 3,083 Direct | -33.34% | Disposed | (price as of 2026-10-05) |
| Aug. 7, 2025 | MIRM | M | 10,000 | $6.27 | $62,700 | 12,426 Direct | +412.20% | Acquired | 1207.6% (price as of 2026-10-05) |
| Aug. 7, 2025 | MIRM | S 10b5-1 | 10,000 | $58.00 | $580,000 | 2,426 Direct | -80.48% | Disposed | 41.4% (price as of 2026-10-05) |
| Aug. 7, 2025 | MIRM | M | 10,000 | · | · | 40,000 Direct | -20.00% | Disposed | (price as of 2026-10-05) |
| July 3, 2025 | MIRM | S 10b5-1 | 477 | $49.08 | $23,411 | 2,426 Direct | -16.43% | Disposed | 67.0% (price as of 2026-10-05) |
| July 2, 2025 | MIRM | S | 564 | $48.25 | $27,213 | 2,903 Direct | -16.27% | Disposed | 69.9% (price as of 2026-10-05) |
| July 1, 2025 | MIRM | M | 1,041 | · | · | 3,467 Direct | +42.91% | Acquired | (price as of 2026-10-05) |
| July 1, 2025 | MIRM | M | 1,041 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 18, 2025 | MIRM | S 10b5-1 | 2,415 | $44.45 | $107,347 | 2,426 Direct | -49.89% | Disposed | 84.4% (price as of 2026-10-05) |
| March 17, 2025 | MIRM | S | 2,900 | $44.21 | $128,209 | 6,647 Direct | -30.38% | Disposed | 85.4% (price as of 2026-10-05) |
| March 17, 2025 | MIRM | M | 52,900 | $2.94 | $155,526 | 59,547 Direct | +795.85% | Acquired | 2688.6% (price as of 2026-10-05) |
| March 17, 2025 | MIRM | S 10b5-1 | 50,111 | $44.33 | $2,221,421 | 9,436 Direct | -84.15% | Disposed | 84.9% (price as of 2026-10-05) |
| March 17, 2025 | MIRM | S 10b5-1 | 2,789 | $44.75 | $124,808 | 6,647 Direct | -29.56% | Disposed | 83.2% (price as of 2026-10-05) |
| March 17, 2025 | MIRM | S 10b5-1 | 1,806 | $44.36 | $80,114 | 4,841 Direct | -27.17% | Disposed | 84.8% (price as of 2026-10-05) |
| March 17, 2025 | MIRM | M | 52,900 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 15, 2025 | MIRM | M | 5,315 | · | · | 9,547 Direct | +125.59% | Acquired | (price as of 2026-10-05) |
| March 15, 2025 | MIRM | M | 5,315 | · | · | 2,658 Direct | -66.66% | Disposed | (price as of 2026-10-05) |
| Feb. 3, 2025 | MIRM | S | 1,064 | $48.22 | $51,306 | 4,232 Direct | -20.09% | Disposed | 70.0% (price as of 2026-10-05) |
| Jan. 31, 2025 | MIRM | M | 1,772 | · | · | 5,296 Direct | +50.28% | Acquired | (price as of 2026-10-05) |
| Jan. 31, 2025 | MIRM | M | 1,772 | · | · | 1,771 Direct | -50.01% | Disposed | (price as of 2026-10-05) |
| Jan. 24, 2025 | MIRM | S | 902 | $47.92 | $43,224 | 3,524 Direct | -20.38% | Disposed | 71.1% (price as of 2026-10-05) |
| Jan. 23, 2025 | MIRM | M | 1,500 | · | · | 4,426 Direct | +51.26% | Acquired | (price as of 2026-10-05) |
| Jan. 23, 2025 | MIRM | M | 1,500 | · | · | 3,000 Direct | -33.33% | Disposed | (price as of 2026-10-05) |
| Jan. 21, 2025 | MIRM | A | 18,500 | · | · | 18,500 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 21, 2025 | MIRM | A | 4,625 | · | · | 4,625 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 21, 2025 | MIRM | A | 7,973 | · | · | 7,973 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 7, 2025 | MIRM | S | 750 | $42.82 | $32,115 | 2,926 Direct | -20.40% | Disposed | 91.5% (price as of 2026-10-05) |
| Jan. 6, 2025 | MIRM | M | 1,250 | · | · | 3,676 Direct | +51.53% | Acquired | (price as of 2026-10-05) |
| Jan. 6, 2025 | MIRM | M | 1,250 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Nov. 14, 2024 | MIRM | M | 2,500 | $2.94 | $7,350 | 4,926 Direct | +103.05% | Acquired | 2688.6% (price as of 2026-10-05) |
| Nov. 14, 2024 | MIRM | S | 2,500 | $47.10 | $117,750 | 2,426 Direct | -50.75% | Disposed | 74.1% (price as of 2026-10-05) |
| Nov. 14, 2024 | MIRM | M | 2,500 | · | · | 52,900 Direct | -4.51% | Disposed | (price as of 2026-10-05) |
| July 2, 2024 | MIRM | S | 375 | $34.00 | $12,750 | 2,426 Direct | -13.39% | Disposed | 141.1% (price as of 2026-10-05) |
| July 1, 2024 | MIRM | M | 1,042 | · | · | 2,801 Direct | +59.24% | Acquired | (price as of 2026-10-05) |
| July 1, 2024 | MIRM | M | 1,042 | · | · | 1,041 Direct | -50.02% | Disposed | (price as of 2026-10-05) |
| Feb. 2, 2024 | MIRM | S | 735 | $26.19 | $19,250 | 1,759 Direct | -29.47% | Disposed | 213.0% (price as of 2026-10-05) |
| Jan. 31, 2024 | MIRM | M | 1,772 | · | · | 2,494 Direct | +245.43% | Acquired | (price as of 2026-10-05) |
| Jan. 31, 2024 | MIRM | M | 1,772 | · | · | 3,543 Direct | -33.34% | Disposed | (price as of 2026-10-05) |
| Jan. 23, 2024 | MIRM | A | 18,000 | · | · | 18,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 23, 2024 | MIRM | A | 4,500 | · | · | 4,500 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 8, 2024 | MIRM | S | 528 | $28.04 | $14,805 | 722 Direct | -42.24% | Disposed | 192.4% (price as of 2026-10-05) |
| Jan. 6, 2024 | MIRM | M | 1,250 | · | · | 1,250 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 6, 2024 | MIRM | M | 1,250 | · | · | 1,250 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Dec. 5, 2023 | MIRM | M | 2,500 | · | · | 55,400 Direct | -4.32% | Disposed | (price as of 2026-10-05) |
| Dec. 5, 2023 | MIRM | S | 2,500 | $32.40 | $81,000 | 0 Direct | -100.00% | Disposed | 153.0% (price as of 2026-10-05) |
| Dec. 5, 2023 | MIRM | M | 2,500 | $2.94 | $7,350 | 2,500 Direct | · | Acquired | 2688.6% (price as of 2026-10-05) |
| Aug. 25, 2023 | MIRM | S | 3,459 | $26.23 | $90,730 | 0 Direct | -100.00% | Disposed | 212.6% (price as of 2026-10-05) |
| July 3, 2023 | MIRM | S | 915 | $25.65 | $23,470 | 3,459 Direct | -20.92% | Disposed | 219.6% (price as of 2026-10-05) |
| July 1, 2023 | MIRM | M | 1,042 | · | · | 2,083 Direct | -33.34% | Disposed | (price as of 2026-10-05) |
| July 1, 2023 | MIRM | M | 1,042 | · | · | 4,374 Direct | +31.27% | Acquired | (price as of 2026-10-05) |
| June 30, 2023 | MIRM | M | 1,563 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 30, 2023 | MIRM | M | 1,563 | · | · | 3,332 Direct | +88.36% | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 18, 2026 | MIRM | Employee Stock Option (right to buy) | Common Stock | $6.27 | May 13, 2029 | 40,000 | Disposed |
| March 15, 2026 | MIRM | Performance Restricted Stock Units | Common Stock | · | · | 2,658 | Disposed |
| March 15, 2026 | MIRM | Performance Restricted Stock Units | Common Stock | · | · | 6,000 | Disposed |
| Jan. 31, 2026 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,771 | Disposed |
| Jan. 28, 2026 | MIRM | Stock Option (right to buy) | Common Stock | $100.85 | Jan. 27, 2036 | 7,680 | Acquired |
| Jan. 28, 2026 | MIRM | Restricted Stock Units | Common Stock | · | · | 4,970 | Acquired |
| Jan. 28, 2026 | MIRM | Performance Restricted Stock Units | Common Stock | · | · | 9,000 | Acquired |
| Jan. 23, 2026 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,500 | Disposed |
| Jan. 21, 2026 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,542 | Disposed |
| Aug. 7, 2025 | MIRM | Employee Stock Option (right to buy) | Common Stock | $6.27 | May 13, 2029 | 10,000 | Disposed |
| July 1, 2025 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,041 | Disposed |
| March 17, 2025 | MIRM | Stock Option (right to buy) | Common Stock | $2.94 | March 11, 2029 | 52,900 | Disposed |
| March 15, 2025 | MIRM | Performance Restricted Stock Units | Common Stock | · | · | 5,315 | Disposed |
| Jan. 31, 2025 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,772 | Disposed |
| Jan. 23, 2025 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,500 | Disposed |
| Jan. 21, 2025 | MIRM | Stock Option (right to buy) | Common Stock | $47.98 | Jan. 20, 2035 | 18,500 | Acquired |
| Jan. 21, 2025 | MIRM | Restricted Stock Units | Common Stock | · | · | 4,625 | Acquired |
| Jan. 21, 2025 | MIRM | Performance Restricted Stock Units | Common Stock | · | · | 7,973 | Acquired |
| Jan. 6, 2025 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,250 | Disposed |
| Nov. 14, 2024 | MIRM | Stock Option (right to buy) | Common Stock | $2.94 | March 11, 2029 | 2,500 | Disposed |
| July 1, 2024 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,042 | Disposed |
| Jan. 31, 2024 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,772 | Disposed |
| Jan. 23, 2024 | MIRM | Stock Option (right to buy) | Common Stock | $26.49 | Jan. 22, 2034 | 18,000 | Acquired |
| Jan. 23, 2024 | MIRM | Restricted Stock Units | Common Stock | · | · | 4,500 | Acquired |
| Jan. 6, 2024 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,250 | Disposed |
| Dec. 5, 2023 | MIRM | Stock Option (right to buy) | Common Stock | $2.94 | March 11, 2029 | 2,500 | Disposed |
| July 1, 2023 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,042 | Disposed |
| June 30, 2023 | MIRM | Performance Restricted Stock Units | Common Stock | · | · | 1,563 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 12 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 9, 2023 | MIRM | Common Stock | 1,769 | Direct |
| May 9, 2023 | MIRM | Stock Option (right to buy) | 57,900 | Direct |
| May 9, 2023 | MIRM | Stock Option (right to buy) | 50,000 | Direct |
| May 9, 2023 | MIRM | Stock Option (right to buy) | 25,000 | Direct |
| May 9, 2023 | MIRM | Stock Option (right to buy) | 25,000 | Direct |
| May 9, 2023 | MIRM | Stock Option (right to buy) | 22,500 | Direct |
| May 9, 2023 | MIRM | Stock Option (right to buy) | 18,750 | Direct |
| May 9, 2023 | MIRM | Stock Option (right to buy) | 21,250 | Direct |
| May 9, 2023 | MIRM | Restricted Stock Units | 2,500 | Direct |
| May 9, 2023 | MIRM | Restricted Stock Units | 3,125 | Direct |
| May 9, 2023 | MIRM | Restricted Stock Units | 5,315 | Direct |
| May 9, 2023 | MIRM | Performance Restricted Stock Units | 1,563 | Direct |