Matthew Paul Larson
Insider
First SEC filing: March 3, 2026 · Latest: June 12, 2026
Insider at
Insider transactions
0 buys (P)
19 sells (S)
Net: $-4,370,886
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. 14, 2026 | SLDE | M | 11,374 | $1.38 | $15,696 | 11,374 Direct | · | Acquired | 1668.1% (price as of 2026-10-05) |
| Sept. 14, 2026 | SLDE | S 10b5-1 | 11,374 | $26.00 | $295,724 | 0 Direct | -100.00% | Disposed | -6.2% (price as of 2026-10-05) |
| Sept. 14, 2026 | SLDE | M 10b5-1 | 11,374 | · | · | 27,500 Direct | -29.26% | Disposed | (price as of 2026-10-05) |
| Sept. 3, 2026 | SLDE | M | 11,374 | $1.38 | $15,696 | 11,374 Direct | · | Acquired | 1668.1% (price as of 2026-10-05) |
| Sept. 3, 2026 | SLDE | S 10b5-1 | 11,374 | $24.62 | $280,028 | 0 Direct | -100.00% | Disposed | -0.9% (price as of 2026-10-05) |
| Sept. 3, 2026 | SLDE | M 10b5-1 | 11,374 | · | · | 38,874 Direct | -22.64% | Disposed | (price as of 2026-10-05) |
| June 10, 2026 | SLDE | M 10b5-1 | 4,752 | · | · | 50,248 Direct | -8.64% | Disposed | (price as of 2026-10-05) |
| June 10, 2026 | SLDE | M 10b5-1 | 8,998 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 10, 2026 | SLDE | S 10b5-1 | 13,750 | $17.07 | $234,712 | 0 Direct | -100.00% | Disposed | 42.9% (price as of 2026-10-05) |
| June 10, 2026 | SLDE | M | 4,752 | $1.38 | $6,558 | 13,750 Direct | +52.81% | Acquired | 1668.1% (price as of 2026-10-05) |
| June 10, 2026 | SLDE | M | 8,998 | $0.79 | $7,108 | 8,998 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| June 1, 2026 | SLDE | M 10b5-1 | 2,500 | · | · | 8,998 Direct | -21.74% | Disposed | (price as of 2026-10-05) |
| June 1, 2026 | SLDE | S 10b5-1 | 2,500 | $17.79 | $44,475 | 0 Direct | -100.00% | Disposed | 37.2% (price as of 2026-10-05) |
| June 1, 2026 | SLDE | M | 2,500 | $0.79 | $1,975 | 2,500 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| May 26, 2026 | SLDE | M 10b5-1 | 11,250 | · | · | 11,498 Direct | -49.45% | Disposed | (price as of 2026-10-05) |
| May 26, 2026 | SLDE | S 10b5-1 | 11,250 | $18.56 | $208,800 | 0 Direct | -100.00% | Disposed | 31.5% (price as of 2026-10-05) |
| May 26, 2026 | SLDE | M | 11,250 | $0.79 | $8,888 | 11,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| May 18, 2026 | SLDE | M 10b5-1 | 16,250 | · | · | 22,748 Direct | -41.67% | Disposed | (price as of 2026-10-05) |
| May 18, 2026 | SLDE | S 10b5-1 | 16,250 | $19.01 | $308,912 | 0 Direct | -100.00% | Disposed | 28.4% (price as of 2026-10-05) |
| May 18, 2026 | SLDE | M | 16,250 | $0.79 | $12,838 | 16,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| May 11, 2026 | SLDE | M 10b5-1 | 11,250 | · | · | 38,998 Direct | -22.39% | Disposed | (price as of 2026-10-05) |
| May 11, 2026 | SLDE | S 10b5-1 | 11,250 | $18.67 | $210,038 | 0 Direct | -100.00% | Disposed | 30.7% (price as of 2026-10-05) |
| May 11, 2026 | SLDE | M | 11,250 | $0.79 | $8,888 | 11,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| May 4, 2026 | SLDE | M 10b5-1 | 5,000 | · | · | 50,248 Direct | -9.05% | Disposed | (price as of 2026-10-05) |
| May 4, 2026 | SLDE | S 10b5-1 | 5,000 | $18.57 | $92,850 | 0 Direct | -100.00% | Disposed | 31.4% (price as of 2026-10-05) |
| May 4, 2026 | SLDE | M | 5,000 | $0.79 | $3,950 | 5,000 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| April 29, 2026 | SLDE | M 10b5-1 | 44,752 | · | · | 55,248 Direct | -44.75% | Disposed | (price as of 2026-10-05) |
| April 29, 2026 | SLDE | S 10b5-1 | 44,752 | $20.02 | $895,935 | 0 Direct | -100.00% | Disposed | 21.9% (price as of 2026-10-05) |
| April 29, 2026 | SLDE | M | 44,752 | $0.79 | $35,354 | 44,752 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| April 27, 2026 | SLDE | M 10b5-1 | 10,000 | · | · | 100,000 Direct | -9.09% | Disposed | (price as of 2026-10-05) |
| April 27, 2026 | SLDE | M 10b5-1 | 1,250 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| April 27, 2026 | SLDE | S 10b5-1 | 10,000 | $18.77 | $187,700 | 0 Direct | -100.00% | Disposed | 30.0% (price as of 2026-10-05) |
| April 27, 2026 | SLDE | M | 10,000 | $0.79 | $7,900 | 10,000 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| April 27, 2026 | SLDE | S 10b5-1 | 1,250 | $18.77 | $23,462 | 0 Direct | -100.00% | Disposed | 30.0% (price as of 2026-10-05) |
| April 27, 2026 | SLDE | M | 1,250 | $0.79 | $988 | 1,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| April 20, 2026 | SLDE | M 10b5-1 | 11,250 | · | · | 1,250 Direct | -90.00% | Disposed | (price as of 2026-10-05) |
| April 20, 2026 | SLDE | S 10b5-1 | 11,250 | $19.39 | $218,138 | 0 Direct | -100.00% | Disposed | 25.8% (price as of 2026-10-05) |
| April 20, 2026 | SLDE | M | 11,250 | $0.79 | $8,888 | 11,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| April 16, 2026 | SLDE | M 10b5-1 | 8,750 | · | · | 12,500 Direct | -41.18% | Disposed | (price as of 2026-10-05) |
| April 16, 2026 | SLDE | S 10b5-1 | 8,750 | $19.00 | $166,250 | 0 Direct | -100.00% | Disposed | 28.4% (price as of 2026-10-05) |
| April 16, 2026 | SLDE | M | 8,750 | $0.79 | $6,912 | 8,750 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| April 13, 2026 | SLDE | M 10b5-1 | 10,000 | · | · | 21,250 Direct | -32.00% | Disposed | (price as of 2026-10-05) |
| April 13, 2026 | SLDE | S 10b5-1 | 10,000 | $18.00 | $180,000 | 0 Direct | -100.00% | Disposed | 35.6% (price as of 2026-10-05) |
| April 13, 2026 | SLDE | M | 10,000 | $0.79 | $7,900 | 10,000 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| April 6, 2026 | SLDE | M 10b5-1 | 11,250 | · | · | 31,250 Direct | -26.47% | Disposed | (price as of 2026-10-05) |
| April 6, 2026 | SLDE | S 10b5-1 | 11,250 | $18.00 | $202,500 | 0 Direct | -100.00% | Disposed | 35.6% (price as of 2026-10-05) |
| April 6, 2026 | SLDE | M | 11,250 | $0.79 | $8,888 | 11,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| March 30, 2026 | SLDE | M 10b5-1 | 11,250 | · | · | 42,500 Direct | -20.93% | Disposed | (price as of 2026-10-05) |
| March 30, 2026 | SLDE | S 10b5-1 | 11,250 | $18.00 | $202,500 | 0 Direct | -100.00% | Disposed | 35.6% (price as of 2026-10-05) |
| March 30, 2026 | SLDE | M | 11,250 | $0.79 | $8,888 | 11,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| March 24, 2026 | SLDE | M 10b5-1 | 11,250 | · | · | 53,750 Direct | -17.31% | Disposed | (price as of 2026-10-05) |
| March 24, 2026 | SLDE | S 10b5-1 | 11,250 | $18.00 | $202,500 | 0 Direct | -100.00% | Disposed | 35.6% (price as of 2026-10-05) |
| March 24, 2026 | SLDE | M | 11,250 | $0.79 | $8,888 | 11,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| March 16, 2026 | SLDE | M 10b5-1 | 11,250 | · | · | 65,000 Direct | -14.75% | Disposed | (price as of 2026-10-05) |
| March 16, 2026 | SLDE | S 10b5-1 | 11,250 | $18.00 | $202,500 | 0 Direct | -100.00% | Disposed | 35.6% (price as of 2026-10-05) |
| March 16, 2026 | SLDE | M | 11,250 | $0.79 | $8,888 | 11,250 Direct | · | Acquired | 2988.6% (price as of 2026-10-05) |
| March 3, 2026 | SLDE | M | 11,250 | · | · | 76,250 Direct | -12.86% | Disposed | (price as of 2026-10-05) |
| March 3, 2026 | SLDE | S | 11,250 | $19.01 | $213,862 | 0 Direct | -100.00% | Disposed | 28.4% (price as of 2026-10-05) |
| March 3, 2026 | SLDE | M | 11,250 | $0.79 | $8,888 | 11,250 Direct | · | Acquired | 2988.6% (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 |
|---|---|---|---|---|---|---|---|
| Sept. 14, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $1.38 | Feb. 24, 2032 | 11,374 | Disposed |
| Sept. 3, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $1.38 | Feb. 24, 2032 | 11,374 | Disposed |
| June 10, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $1.38 | Feb. 24, 2032 | 4,752 | Disposed |
| June 10, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 24, 2032 | 8,998 | Disposed |
| June 1, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 24, 2032 | 2,500 | Disposed |
| May 26, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 24, 2032 | 11,250 | Disposed |
| May 18, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 24, 2032 | 16,250 | Disposed |
| May 11, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 24, 2032 | 11,250 | Disposed |
| May 4, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 24, 2032 | 5,000 | Disposed |
| April 29, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 24, 2032 | 44,752 | Disposed |
| April 27, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 24, 2032 | 10,000 | Disposed |
| April 27, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 21, 2032 | 1,250 | Disposed |
| April 20, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| April 16, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 21, 2032 | 8,750 | Disposed |
| April 13, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 21, 2032 | 10,000 | Disposed |
| April 6, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| March 30, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| March 24, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| March 16, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| March 3, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock | · | Feb. 21, 2032 | 11,250 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.