Insider at

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Insider transactions

05
0 buys (P) 6 sells (S) Net: $-4,077,375 + 40 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

40 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
April 10, 2026 TSHA S 10b5-1 200,000 $4.46 $892,000 1,136,410 Direct -14.97% Disposed 3.8% (price as of 2026-10-02)
Jan. 26, 2026 TSHA S 26,918 $4.61 $124,092 1,317,389 Direct -2.00% Disposed 0.4% (price as of 2026-10-02)
Jan. 23, 2026 TSHA S 89,132 $4.75 $423,377 1,344,307 Direct -6.22% Disposed -2.5% (price as of 2026-10-02)
Jan. 12, 2026 TSHA S 10b5-1 200,000 $4.71 $942,000 1,006,439 Direct -16.58% Disposed -1.7% (price as of 2026-10-02)
Dec. 1, 2025 TSHA S 260,047 $4.51 $1,172,812 1,006,439 Direct -20.53% Disposed 2.7% (price as of 2026-10-02)
Nov. 28, 2025 TSHA S 110,125 $4.75 $523,094 1,006,439 Direct -9.86% Disposed -2.5% (price as of 2026-10-02)
Sept. 10, 2025 TSHA S 10b5-1 200,000 $3.23 $646,000 1,006,439 Direct -16.58% Disposed 43.3% (price as of 2026-10-02)
Aug. 21, 2025 TSHA S 57,054 $2.85 $162,604 1,165,289 Direct -4.67% Disposed 62.5% (price as of 2026-10-02)
May 16, 2023 TSHA P 5,000 $0.68 $3,400 34,226 Direct +17.11% Acquired 580.9% (price as of 2026-10-02)
Feb. 2, 2022 TSHA P 10,000 $8.01 $80,100 29,226 Direct +52.01% Acquired -42.2% (price as of 2026-10-02)

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
June 10, 2026 SLDB Director Stock Option (Right to Buy) Common Stock (77,500) $6.61 June 10, 2036 77,500 Acquired
April 10, 2026 TSHA Employee Stock Option (right to buy) Common Stock (19,021) $1.71 Jan. 2, 2034 19,021 Disposed
Jan. 12, 2026 TSHA Employee Stock Option (right to buy) Common Stock (111,324) $0.70 Dec. 14, 2033 111,324 Disposed
Jan. 12, 2026 TSHA Employee Stock Option (right to buy) Common Stock (88,676) $1.71 Jan. 2, 2034 88,676 Disposed
Jan. 12, 2026 TSHA Employee Stock Option (right to buy) Common Stock (274,000) $4.86 Jan. 12, 2036 274,000 Acquired
Dec. 1, 2025 TSHA Employee Stock Option (right to buy) Common Stock (260,047) $1.71 Jan. 2, 2034 260,047 Disposed
Nov. 28, 2025 TSHA Employee Stock Option (right to buy) Common Stock (70,172) $0.70 Dec. 14, 2033 70,172 Disposed
Nov. 28, 2025 TSHA Employee Stock Option (right to buy) Common Stock (39,953) $1.71 Jan. 2, 2034 39,953 Disposed
Sept. 10, 2025 TSHA Employee Stock Option (right to buy) Common Stock (41,150) $0.70 Dec. 14, 2033 41,150 Disposed
June 12, 2025 SLDB Director Stock Option (Right to Buy) Common Stock (77,500) $4.58 June 12, 2035 77,500 Acquired
Jan. 2, 2025 TSHA Employee Stock Option (right to buy) Common Stock (324,500) $1.85 Jan. 2, 2035 324,500 Acquired
June 11, 2024 SLDB Director Stock Option (Right to Buy) Common Stock (34,400) $7.51 June 11, 2034 34,400 Acquired
Jan. 2, 2024 TSHA Employee Stock Option (right to buy) Common Stock (863,617) $1.71 Jan. 2, 2034 863,617 Acquired
Dec. 14, 2023 TSHA Employee Stock Option (right to buy) Common Stock (334,005) $0.70 Dec. 14, 2033 334,005 Acquired
June 6, 2023 SLDB Director Stock Option (Right to Buy) Common Stock (9,650) $6.37 June 6, 2033 9,650 Acquired
Dec. 30, 2022 TSHA Stock Option (right to buy) Common Stock (790,093) $2.26 Dec. 30, 2032 790,093 Acquired
Dec. 13, 2022 SLDB Director Stock Option (Right to Buy) Common Stock (9,650) $6.47 Dec. 13, 2032 9,650 Acquired
June 17, 2022 TSHA Stock Option (right to buy) Common Stock (15,500) $2.81 June 17, 2032 15,500 Acquired
June 7, 2022 SLDB Director Stock Option (Right to Buy) Common Stock (51,000) $0.62 June 7, 2032 51,000 Acquired
June 17, 2021 TSHA Stock Option (right to buy) Common Stock (15,500) $25.04 June 17, 2031 15,500 Acquired
June 16, 2021 SLDB Director Stock Option (Right to Buy) Common Stock (30,000) $3.94 June 16, 2031 30,000 Acquired
Sept. 28, 2020 TSHA Series B Preferred Stock Common Stock (19,226) · · 17,647 Disposed
Sept. 23, 2020 TSHA Stock Option (right to buy) Common Stock (31,000) $20.00 Sept. 23, 2030 31,000 Acquired
June 16, 2020 SLDB Director Stock Option (Right to Buy) Common Stock $3.03 June 16, 2030 10,000 Acquired
June 16, 2020 SLDB Director Stock Option (Right to Buy) Common Stock (30,000) $3.03 June 16, 2030 30,000 Acquired
June 13, 2019 SLDB Director Stock Option (Right to Buy) Common Stock (10,000) $5.26 June 13, 2029 10,000 Acquired
Dec. 13, 2018 SLDB Director Stock Option (Right to Buy) Common Stock (17,240) $23.58 Dec. 13, 2028 17,240 Acquired
Sept. 12, 2018 SLDB Director Stock Option (Right to Buy) Common Stock (2,760) $50.65 Sept. 12, 2028 2,760 Acquired

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

Initial ownership (Form 3) 4 holdings

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

DateTickerSecuritySharesOwnership
Sept. 23, 2020 TSHA Series B Preferred Stock→ Common Stock (19,226) 19,226 Direct
Sept. 23, 2020 TSHA Stock Option (right to buy)→ Common Stock (8,171) 8,171 Direct
May 9, 2019 IMVT Common Stock 20,000 Indirect
Sept. 13, 2018 SLDB Common Stock 2,000 Direct

Compensation (DEF 14A)

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

TSHA

M.D. President and Head of Research and Development and Director
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2025 $608,166 · · · $425,716 · $1,138 $2,092,890
2024 $584,775 · · · $321,626 · $774 $3,601,660
2023 $565,000 · · · $254,250 · $1,344 $1,248,120

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