Possible new SI-BONE shares

SIBNDilution

Known so far: no new shares from the prospectus covers read · shelf not limited by the baby-shelf rule · not yet read: converts, ATM.

Shelf room

  • Room today not capped by the baby-shelf rule ($800M float, Jun 30, 2025)
How this is worked out

Shelf room on the S-3ASR of Feb 24, 2026: not limited by the baby-shelf rule, because the $800M public float stated as of Jun 30, 2025 is $75M or more. Sources: S-3ASR Feb 24, 2026, effective Feb 24, 2026 · public float, as of Jun 30, 2025.

What could become new SI-BONE (SIBN) shares: warrants and options and RSUs, each with the 10-Q, 10-K, S-3 or 424B filing it comes from.

SI-BONE dilution ladder

Every source of new shares on record, from the filings that created it.

45.1M outstanding; up to 48M fully diluted, +6%

  1. Outstandingas of Oct 28, 2026 (10-Q filed Nov 3) · share count on the cover page
    45.1M
  2. Warrants4,62510-Q Nov 3, 2026 · equity note
    +4,625
  3. Options and RSUs618K options, 2.3M RSUs10-Q Nov 3, 2026 · equity note
    +2.9M

Not stated in the filings we read: an ATM program, convertible notes.

Counts, sizes and prices as stated in each filing; the fully diluted count is arithmetic on them. Dollars become shares only at a price a filing states. Not advice.

Shares outstanding

45.1M

Feb 2025 to Oct 2026: from 42.5M to 45.1M.

From the share count on the cover of each 10-Q and 10-K, dated as each cover states.