Herzich Paul 4
4 · Solid Biosciences Inc. · Filed Feb 2, 2026
Research Summary
AI-generated summary of this filing
Solid Biosciences (SLDB) CTO Paul Herzich Sells 26,250 Shares
What Happened
- Paul Herzich, Chief Technology Officer of Solid Biosciences (SLDB), recorded the vesting/conversion of performance and restricted equity and a small open‑market sale. Following conversion/vesting events on Jan 29 and Jan 31, 2026, Herzich sold 26,250 shares on Feb 2, 2026 for a weighted average price of $6.44, totaling approximately $168,969. The sale was a sell‑to‑cover to satisfy tax withholding obligations after PSU vesting (not a discretionary trade).
Key Details
- Transaction dates and amounts:
- Jan 29, 2026: Conversion/exercise related entries for 54,925 shares (derivative conversion/related grant activity recorded).
- Jan 29, 2026: Grants recorded totaling 170,000 shares and 85,000 shares (zero exercise price; derivative awards).
- Jan 31, 2026: Conversion/exercise of 24,675 shares.
- Feb 2, 2026: Open‑market sale of 26,250 shares at a weighted average $6.44, gross proceeds ≈ $168,969.
- Price details: weighted average $6.44; sale prices ranged from $6.295 to $6.580 (filing provides range and offers to supply per‑trade detail on request).
- Shares owned after transaction: not specified in the excerpt provided (see full Form 4 for “Ownership Following Reported Transaction”).
- Notable footnotes:
- The sale was a sell‑to‑cover to cover withholding taxes after PSUs vested and was effected under a durable automatic sell instruction (adopted Aug 16, 2024) — not a discretionary sale by the reporting person.
- PSUs convert one‑for‑one to common stock; one PSU performance milestone (25% of target) was certified on Jan 29, 2026, causing partial vesting.
- Grants and vesting schedules: PSU/RSU grants and an option were noted with multi‑year vesting schedules (see footnotes for four‑year vesting detail).
- Filing timeliness: Form was filed Feb 2, 2026 for transactions dated Jan 29–Feb 2, 2026; this filing appears timely under the two business‑day Form 4 requirement.
Context
- These entries reflect equity award vesting/conversion events (PSUs/RSUs/options) and a routine sell‑to‑cover to satisfy tax withholding—not an independent open‑market bet by the insider. For full ownership figures and the detailed breakdown of conversions vs. cancellations, consult the full Form 4 (Accession No. 0001193125-26-034076).
Insider Transaction Report
Form 4
Herzich Paul
Chief Technology Officer
Transactions
- Exercise/Conversion
Common Stock
[F1]2026-01-29+54,925→ 81,547 total - Exercise/Conversion
Common Stock
[F2]2026-01-31+24,675→ 106,222 total - Sale
Common Stock
[F3][F4]2026-02-02$6.44/sh−26,250$168,969→ 79,972 total - Exercise/Conversion
Performance Stock Units
[F1][F5]2026-01-29−54,925→ 0 total→ Common Stock (54,925 underlying) - Award
Employee Stock Option (Right to Buy)
[F6]2026-01-29+170,000→ 170,000 totalExercise: $6.60Exp: 2036-01-29→ Common Stock (170,000 underlying) - Award
Restricted Stock Units
[F2][F7]2026-01-29+85,000→ 85,000 total→ Common Stock (85,000 underlying) - Exercise/Conversion
Restricted Stock Units
[F2][F8]2026-01-31−24,675→ 74,025 total→ Common Stock (24,675 underlying)
Footnotes (8)
- [F1]Each performance stock unit ("PSUs") converts to common stock on a one-for-one basis.
- [F2]Each restricted stock unit ("RSUs") converts to common stock on a one-for-one basis.
- [F3]This sale was made to cover withholding taxes following the vesting of previously granted PSUs pursuant to a durable automatic sale instruction letter adopted by Mr. Herzich on August 16, 2024 effecting the sell-to-cover election. The sale does not represent a discretionary trade by Mr. Herzich.
- [F4]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.295 to $6.580, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (4) to this Form.
- [F5]The PSUs were granted on June 11, 2024 and provide for the vesting of 25% of the target number of underlying RSUs granted upon the achievement of each of four independent performance milestones predetermined by the Board ("Performance Milestones"), subject to the grantee's continued service with the Company (the "Approval Conditions"). The Performance Milestones are tied to the achievement of certain business objectives, as certified by the Board on specified evaluation dates, and are non-market and non-financial in nature. The performance criteria specified for the first Performance Milestone was determined to be met on January 29, 2026 (the "2026 Grant Date") resulting in the vesting of the PSUs as to 25% of the underlying shares.
- [F6]This option was granted on the 2026 Grant Date and vests over four years, with 25% of the original number of shares vesting on the first anniversary of the 2026 Grant Date and 2.0833% of the original number of shares monthly thereafter until the fourth such anniversary.
- [F7]The RSUs were granted on the 2026 Grant Date and vest over four years, with 25% of the original number of shares vesting on each anniversary of the 2026 Grant Date until the fourth such anniversary.
- [F8]On January 31, 2025 (the "2025 Grant Date"), the reporting person was granted 98,700 RSUs, with 25% of the original number of shares vesting on each anniversary of the 2025 Grant Date until the fourth such anniversary.
Signature
/s/ Kimberly Cornwell as attorney-in-fact for Paul Herzich|2026-02-02