Company · Ownership research

York Space Systems Inc. YSS

CIK 0002086587

Form 3 statements with an event date from Oct 1, 2023 to Oct 15, 2026.

Insider trading Initial holdings Institutional holders

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Where insider ownership starts.

Form 3 is an initial ownership statement filed when someone becomes a reporting insider. These holdings do not mean they bought shares that day.

202614 of 14 statements

Holdings date	Insider	Initial holdings
Apr 10, 2026	Davidson Janine Director	No securities reported	▾
Jan 29, 2026	Frantz Brian D Chief Accounting Officer	5.71K shares	▾
Jan 29, 2026	ROWE DAVID H. · AEROEQUITY GP, LLC · GREENE MICHAEL ROBERT 10% owner / 10% owner / 10% owner	30.20M shares	▾
Jan 29, 2026	McConville James Director	No securities reported	▾
Jan 29, 2026	Brothers Louis R Jr Director	No securities reported	▾
Jan 29, 2026	Boyd Andrew Director	No securities reported	▾
Jan 29, 2026	Erwin Tami A. Director	71.75K shares	▾
Jan 29, 2026	Letarte Tyler Director	No securities reported	▾
Jan 29, 2026	Konert Kirk Michael Director	No securities reported	▾
Jan 29, 2026	Rudra Devjyoti Chief Supply Chain Officer	334.83K shares	▾
Jan 29, 2026	Palko Monica J. See Remarks	680.59K shares	▾
Jan 29, 2026	Messerle Kevin Chief Financial Officer	917.44K shares	▾
Jan 29, 2026	Wallinger Dirk Chief Executive Officer · Director	3 stock holdings	▾
Jan 29, 2026	BlackRock Portfolio Management LLC 10% owner	17.09M shares	▾

Showing 14 / 14 statements in 2026. The complete set is available through the API.

York Space Systems Inc. · YSS

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.