Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 12 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

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Jan. 30, 2026 SI A 88,450 · · 88,450 Direct · Acquired (price as of 2026-10-05)
Dec. 31, 2025 SI A 1,041 $12.16 $12,659 139,372 Direct +0.75% Acquired 61.2% (price as of 2026-10-05)
Sept. 12, 2025 SI M 78,616 $2.10 $165,094 122,553 Direct +178.93% Acquired 833.3% (price as of 2026-10-05)
Sept. 12, 2025 SI M 15,778 $2.48 $39,129 138,331 Direct +12.87% Acquired 690.3% (price as of 2026-10-05)
Sept. 12, 2025 SI M 78,616 · · 0 Direct -100.00% Disposed (price as of 2026-10-05)
Sept. 12, 2025 SI M 15,778 · · 12,271 Direct -56.25% Disposed (price as of 2026-10-05)
Aug. 1, 2025 SI C 43,937 · · 43,937 Direct · Acquired (price as of 2026-10-05)
Aug. 1, 2025 SI C 100,000 · · 0 Indirect -100.00% Disposed (price as of 2026-10-05)
Aug. 1, 2025 SI C 346,333 · · 0 Indirect -100.00% Disposed (price as of 2026-10-05)
Aug. 1, 2025 SI C 308,916 · · 0 Indirect -100.00% Disposed (price as of 2026-10-05)
Aug. 1, 2025 SI C 46,512 · · 0 Indirect -100.00% Disposed (price as of 2026-10-05)
Aug. 1, 2025 SI C 36,614 · · 0 Indirect -100.00% Disposed (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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Jan. 30, 2026 SI Stock Option Common Stock (88,450) $14.16 Jan. 30, 2033 88,450 Acquired
Sept. 12, 2025 SI Stock Option Common Stock (78,616) $2.10 Dec. 16, 2030 78,616 Disposed
Sept. 12, 2025 SI Stock Option Common Stock (15,778) $2.48 May 9, 2033 15,778 Disposed
Aug. 1, 2025 SI Series Seed Convertible Preferred Stock Common Stock (5,241) · · 100,000 Disposed
Aug. 1, 2025 SI Series A Convertible Preferred Stock Common Stock (18,151) · · 346,333 Disposed
Aug. 1, 2025 SI Series B Convertible Preferred Stock Common Stock (16,190) · · 308,916 Disposed
Aug. 1, 2025 SI Series C Convertible Preferred Stock Common Stock (2,437) · · 46,512 Disposed
Aug. 1, 2025 SI Series E Convertible Preferred Stock Common Stock (1,918) · · 36,614 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 12 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
July 30, 2025 SI Series Seed Convertible Preferred Stock→ Common Stock (5,241) 5,241 Indirect
July 30, 2025 SI Series A Convertible Preferred Stock→ Common Stock (18,151) 18,151 Indirect
July 30, 2025 SI Series B Convertible Preferred Stock→ Common Stock (16,190) 16,190 Indirect
July 30, 2025 SI Series C Convertible Preferred Stock→ Common Stock (2,437) 2,437 Indirect
July 30, 2025 SI Series E Convertible Preferred Stock→ Common Stock (1,918) 1,918 Indirect
July 30, 2025 SI Stock Option→ Common Stock (78,616) 78,616 Direct
July 30, 2025 SI Stock Option→ Common Stock (28,049) 28,049 Direct
July 30, 2025 SI Stock Option→ Common Stock (51,795) 51,795 Direct
July 30, 2025 SI Stock Option→ Common Stock (10,620) 10,620 Indirect
July 30, 2025 SI Stock Option→ Common Stock (2,619) 2,619 Indirect
July 30, 2025 SI Stock Option→ Common Stock (37,616) 37,616 Indirect
July 30, 2025 SI Stock Option→ Common Stock (1,648) 1,648 Indirect

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

SI

Chief Customer Experience Officer
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2025 $364,455 · · $148,238 $247,101 · $18,977 $778,771
2024 $349,939 · · · $133,533 · $13,800 $497,272

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.