Matthew Paul Larson
CIK 2114934 · View on SEC EDGAR ↗
Insider
First SEC filing: March 3, 2026 · Latest: June 12, 2026
On this page
Insider at
Insider transactions
0 buys (P)
17 sells (S)
Net:
$-3,795,134
+ 36 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
36 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 10, 2026 | SLDE | S 10b5-1 | 13,750 | $17.07 | $234,712 | 0 Direct | -100.00% | Disposed | 30.2% (price as of 2026-08-20) |
| June 1, 2026 | SLDE | S 10b5-1 | 2,500 | $17.79 | $44,475 | 0 Direct | -100.00% | Disposed | 24.9% (price as of 2026-08-20) |
| May 26, 2026 | SLDE | S 10b5-1 | 11,250 | $18.56 | $208,800 | 0 Direct | -100.00% | Disposed | 19.7% (price as of 2026-08-20) |
| May 18, 2026 | SLDE | S 10b5-1 | 16,250 | $19.01 | $308,912 | 0 Direct | -100.00% | Disposed | 16.9% (price as of 2026-08-20) |
| May 11, 2026 | SLDE | S 10b5-1 | 11,250 | $18.67 | $210,038 | 0 Direct | -100.00% | Disposed | 19.0% (price as of 2026-08-20) |
| May 4, 2026 | SLDE | S 10b5-1 | 5,000 | $18.57 | $92,850 | 0 Direct | -100.00% | Disposed | 19.7% (price as of 2026-08-20) |
| April 29, 2026 | SLDE | S 10b5-1 | 44,752 | $20.02 | $895,935 | 0 Direct | -100.00% | Disposed | 11.0% (price as of 2026-08-20) |
| April 27, 2026 | SLDE | S 10b5-1 | 10,000 | $18.77 | $187,700 | 0 Direct | -100.00% | Disposed | 18.4% (price as of 2026-08-20) |
| April 27, 2026 | SLDE | S 10b5-1 | 1,250 | $18.77 | $23,462 | 0 Direct | -100.00% | Disposed | 18.4% (price as of 2026-08-20) |
| April 20, 2026 | SLDE | S 10b5-1 | 11,250 | $19.39 | $218,138 | 0 Direct | -100.00% | Disposed | 14.6% (price as of 2026-08-20) |
| April 16, 2026 | SLDE | S 10b5-1 | 8,750 | $19.00 | $166,250 | 0 Direct | -100.00% | Disposed | 17.0% (price as of 2026-08-20) |
| April 13, 2026 | SLDE | S 10b5-1 | 10,000 | $18.00 | $180,000 | 0 Direct | -100.00% | Disposed | 23.5% (price as of 2026-08-20) |
| April 6, 2026 | SLDE | S 10b5-1 | 11,250 | $18.00 | $202,500 | 0 Direct | -100.00% | Disposed | 23.5% (price as of 2026-08-20) |
| March 30, 2026 | SLDE | S 10b5-1 | 11,250 | $18.00 | $202,500 | 0 Direct | -100.00% | Disposed | 23.5% (price as of 2026-08-20) |
| March 24, 2026 | SLDE | S 10b5-1 | 11,250 | $18.00 | $202,500 | 0 Direct | -100.00% | Disposed | 23.5% (price as of 2026-08-20) |
| March 16, 2026 | SLDE | S 10b5-1 | 11,250 | $18.00 | $202,500 | 0 Direct | -100.00% | Disposed | 23.5% (price as of 2026-08-20) |
| March 3, 2026 | SLDE | S | 11,250 | $19.01 | $213,862 | 0 Direct | -100.00% | Disposed | 16.9% (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| June 10, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (4,752) | $1.38 | Feb. 24, 2032 | 4,752 | Disposed |
| June 10, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (8,998) | $0.79 | Feb. 24, 2032 | 8,998 | Disposed |
| June 1, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (2,500) | $0.79 | Feb. 24, 2032 | 2,500 | Disposed |
| May 26, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (11,250) | $0.79 | Feb. 24, 2032 | 11,250 | Disposed |
| May 18, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (16,250) | $0.79 | Feb. 24, 2032 | 16,250 | Disposed |
| May 11, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (11,250) | $0.79 | Feb. 24, 2032 | 11,250 | Disposed |
| May 4, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (5,000) | $0.79 | Feb. 24, 2032 | 5,000 | Disposed |
| April 29, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (44,752) | $0.79 | Feb. 24, 2032 | 44,752 | Disposed |
| April 27, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (10,000) | $0.79 | Feb. 24, 2032 | 10,000 | Disposed |
| April 27, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (1,250) | $0.79 | Feb. 21, 2032 | 1,250 | Disposed |
| April 20, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (11,250) | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| April 16, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (8,750) | $0.79 | Feb. 21, 2032 | 8,750 | Disposed |
| April 13, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (10,000) | $0.79 | Feb. 21, 2032 | 10,000 | Disposed |
| April 6, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (11,250) | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| March 30, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (11,250) | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| March 24, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (11,250) | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| March 16, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (11,250) | $0.79 | Feb. 21, 2032 | 11,250 | Disposed |
| March 3, 2026 | SLDE | Stock Option (Right to Buy) | Common Stock (11,250) | — | 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.