Amentum Holdings, Inc. (AMTM) research

Amentum Holdings, Inc.
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Sector
Professional Services
Last price
$18.24
As of

Kresmion compiles this page from AMTM's SEC filings, its 13F institutional holders and the market events Kresmion detects, each linked to its source.

Amentum Holdings, Inc. (AMTM): 7 institutional managers tracked by Kresmion reported non-option positions in their 2026Q2 Form 13F filings, and the most recent SEC filing on record for the company is a Form 8-K filed 2026-10-02.

As of . Source: SEC EDGAR filings for AMTM. Method and limitations.

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You are seeing 5 of 15 signals recorded on AMTM since 2026-07-24.

The five above landed across 3 days. The other 10 were recorded on 1 other days. 11 of the 15 are institutional flow rows, which arrive in batches on filing days.

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Largest reported share positions in AMTM (2026Q2)

Manager / securityMarket value% portfolioQoQ
MILLENNIUM MANAGEMENT LLCCUSIP 023939101 · 2026Q2$44M0.02%,
CITADEL ADVISORS LLCCUSIP 023939101 · 2026Q2$13.9M0.00%,
Point72 Asset Management, L.P.CUSIP 023939101 · 2026Q2$13.4M0.01%,
TWO SIGMA INVESTMENTS, LPCUSIP 023939101 · 2026Q2$5.9M0.00%,
D. E. Shaw & Co., Inc.CUSIP 023939101 · 2026Q2$4M0.00%,
SOROS FUND MANAGEMENT LLCCUSIP 023939101 · 2026Q2$2.4M0.03%,
Bridgewater Associates, LPCUSIP 023939101 · 2026Q2$976K0.00%,

Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.

Recent SEC filings, AMTM

AMTM against its peers

AMTM's operating margin of 3.3% ranks in the 23rd percentile of 23 Professional Services sub-industry peers, fiscal periods ending between 2025-06-30 and 2026-03-31.

MetricAMTMPeer medianPercentilen
Revenue FY14.4B USD4.6B USD9423
Gross marginn/a37.4%n/a16
Operating margin3.3%10.3%2323
Net margin0.5%7.4%1824
Return on equity1.5%17.8%1824
P / E67.6x21.0x9319

Peers (24): KBR, PSN, EXLS, RHI, G, FCN, PL, BZ, EXPO, TNET, MMS, MAN, PCTY, BAH, INOD, PAYC, NSP, TRU, CNXC, ICFI, WLDN, SSNC, CRAI, UPWK. Left out: CACI (period gap). Fiscal periods ending between 2025-06-30 and 2026-03-31. Every figure is one full fiscal year read from one annual filing (AMTM: 10-K), reported in USD. Nothing is trailing twelve months and nothing is converted between currencies. Source: SEC EDGAR XBRL company facts (public domain); prices from Kresmion's daily equity market-data snapshot. Open the full comparison.

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