Catherine Stehman-Breen

CIK 1702233 · View on SEC EDGAR ↗

Insider

First SEC filing: July 29, 2021 · Latest: June 9, 2026

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 17 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

17 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 7, 2020 DYN P 35,574 $2.81 $99,963 35,574 Direct — Acquired 826.0% (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 5, 2026 DYN Stock option (right to buy) Common Stock (35,152) $17.04 June 4, 2036 35,152 Acquired
May 28, 2026 TNYA Stock Option (Right to buy) Common Stock (120,000) $0.80 May 27, 2036 120,000 Acquired
May 30, 2025 DYN Stock option (right to buy) Common Stock (35,000) $11.96 May 29, 2035 35,000 Acquired
May 29, 2025 TNYA Stock Option (Right to buy) Common Stock (107,400) $0.44 May 28, 2035 107,400 Acquired
Oct. 18, 2024 TNYA Stock Option (Right to buy) Common Stock (34,000) $2.04 Oct. 17, 2034 34,000 Acquired
May 22, 2024 DYN Stock option (right to buy) Common Stock (25,133) $31.53 May 21, 2034 25,133 Acquired
June 9, 2023 TNYA Stock Option (Right to buy) Common Stock (29,532) $7.12 June 8, 2033 29,532 Acquired
May 24, 2023 DYN Stock Option (right to buy) Common Stock (24,900) $13.49 May 23, 2033 24,900 Acquired
July 5, 2022 DYN Stock Option (right to buy) Common Stock (7,222) $5.54 July 30, 2030 7,222 Acquired
June 10, 2022 TNYA Stock Option (Right to buy) Common Stock (39,727) $5.26 June 9, 2032 39,727 Acquired
June 3, 2022 DYN Stock Option (right to buy) Common Stock (19,596) $4.58 June 2, 2032 19,596 Acquired
May 26, 2021 DYN Stock Option (right to buy) Common Stock (19,596) $19.56 May 25, 2031 19,596 Acquired
Sept. 21, 2020 DYN Series B Preferred Stock Common Stock (10,725) — — 35,574 Disposed
Aug. 7, 2020 DYN Series B Preferred Stock Common Stock (10,725) — — 35,574 Acquired
July 31, 2020 DYN Stock Option (right to buy) Common Stock (14,444) $5.54 July 30, 2030 14,444 Acquired
July 31, 2020 DYN Stock Option (right to buy) Common Stock (11,156) $5.54 July 30, 2030 11,156 Acquired
April 3, 2017 SRPT Stock Option (right to buy) Common Stock (100,000) $29.70 April 3, 2027 100,000 Acquired

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

Initial ownership (Form 3) 8 holdings

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

Date Ticker Security Shares Ownership
July 29, 2021 TNYA Common Stock 8,125 Direct
July 29, 2021 TNYA Stock Option (Right to Buy)→ Common Stock (21,875) 21,875 Direct
Sept. 16, 2020 DYN Common Stock 104,988 Direct
Sept. 16, 2020 DYN Stock Option (right to buy)→ Common Stock (32,808) 32,808 Direct
Sept. 16, 2020 DYN Stock Option (right to buy)→ Common Stock (11,156) 11,156 Direct
Sept. 16, 2020 DYN Stock Option (right to buy)→ Common Stock (14,444) 14,444 Direct
Sept. 16, 2020 DYN Series B Preferred Stock→ Common Stock (10,725) 10,725 Direct
April 5, 2017 SRPT No Securities Owned 0 Direct

Compensation (DEF 14A)

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

SRPT

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2017 $288,173 — — $1,447,210 — — $65,446 $1,800,829

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