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Companies › AMTM
AMENTUM HOLDINGS INC (AMTM)
Institutional ownership, SEC filings and insider activity
Sector: Professional Services · SEC CIK 0002011286 · EDGAR filings · Updated 2026-05-12
AMENTUM HOLDINGS INC (AMTM) has reported institutional ownership of 86.3%, with 483 institutional managers holding positions valued at $5.27B per the latest 13F reporting period.
Institutional ownership
86.3%
Institutional managers
483
Reported 13F value
$5.27B
Insider activity
59 trans.
$0 net flat
Latest updates
- 2026-05-12 — Quarterly report (10-Q) filed
- 2026-05-11 — Current report (8-K) filed
- 2026-05-07 — Insider transaction reported (Form 4)
- 2026-05-07 — Insider transaction reported (Form 4)
- 2026-05-07 — Insider transaction reported (Form 4)
- 2026-05-07 — Insider transaction reported (Form 4)
Institutional ownership overview
According to SEC 13F filings tracked by Sightfile, AMENTUM HOLDINGS INC has 483 institutional holders and institutional ownership of 86.3%.
Insider activity
Insiders reported 59 transactions (0 buys, 0 sells) across 20 reporting insiders, with a net reported value of $0.
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See full history, cross-references and alerts on SightfileSightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-05-12.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-05-12.