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SCHEDULE 13G Filed 2026-08-06 Event — SEC 0000763212-26-000027 →

PRIMECAP MANAGEMENT CO/CA/ Amentum Holdings, Inc. AMTM

Stake: Shares: Class: COMM

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
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Issuer Cluster
1 13D/G filings on this issuer
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Filer Track Record
5 filings by this filer
4 other filings in the data moat
Short Interest · settle 2026-07-15
DTC 7.03
13,453,698 shares short · -2.1% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
2 holders · $23.33M
Point72 Asset MgmtSoros Fund Management

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