InsiderTrades

Form 4 for STDN Standard Nuclear, Inc.

Accepted 2026-07-22 20:58:58 ET · period of report 2026-07-17 · accession 0001213900-26-080554 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-07-22 20:58 2026-07-17 STDN Welara Capital Partners LLC Series 3 10% C - Cnv Deriv — +20.24M 20.24M New —
DM 2026-07-22 20:58 2026-07-17 STDN Welara Capital Partners LLC Series 3 10% C - Cnv Deriv — -20.24M 0 -100% —

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Class A Common Stock 2026-07-17 C A 20,243,094 — 20,243,094 D — — (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1.
2 Derivative Series Seed-1 Preferred Stock 2026-07-17 C D 15,000,000 — 0 D — · — to — 15,000,000 Class A Common Stock (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1.
3 Derivative Series A Preferred Stock 2026-07-17 C D 3,515,018 — 0 D — · — to — 3,515,018 Class A Common Stock (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1.
4 Derivative Series A-2 Preferred Stock 2026-07-17 C D 1,728,076 — 0 D — · — to — 1,728,076 Class A Common Stock (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1. (F1) Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1.