Follow-The-Filings

Security · featured owners

AMTM Amentum Holdings Inc.

Industrials COM Equity as of 2026 Q2 among managers we track

  • 2 Owners
  • Max 0.2%
  • $14M
  • 1 add 1 reduce 1 exit

AMTM (Amentum Holdings Inc.) is held in 2 featured 13F books as of 2026 Q2. Ruane, Cunniff & Goldfarb is the largest tracked holder by portfolio weight (0.17%). Figures are as-filed 13F, not free float.

Who owns this now

Largest portfolio weights among featured holders · max 0.2% (Ruane, Cunniff & Goldfarb) · not free-float ownership

  1. Ruane, Cunniff & Goldfarb reduce 0.17%
  2. George Soros add 0.03%

holders

sorted by value · long equity only · current book 2026 Q2 · open a manager for their book

history
Ruane, Cunniff & Goldfarb 2026 Q2 0.17% Reduce −66.9% 537,213 $11M history
George Soros - Soros Fund Management 2026 Q2 0.03% Add +9.9% 118,276 $2M history
Lee Ainslie - Maverick Capital exited 2026 Q2 last 2026 Q1 0.01% Exit −0.01% 46,335 $1M history

2 current · 1 exited last period · options excluded

financials

US-GAAP annual · as tagged in Form 10-K · fiscal years · values link to the SEC filing

Income statement

Metric FY2024 FY2025
Revenue $8.39B $14.39B
Gross profit * — $1.51B
Gross margin * — 10.5%
Net income -$82M $66M
Net margin * -1.0% 0.5%

Balance sheet

Metric FY2024 FY2025
Total current assets $3.08B $3.11B
Total non-current assets * $8.89B $8.35B
Total assets $11.97B $11.46B
Total current liabilities $1.96B $2.35B
Total non-current liabilities * $5.46B $4.49B
Total equity $4.46B $4.5B

Cash flow

Metric FY2024 FY2025
Cash from operations $47M $543M
Cash from investing $475M $228M
Cash from financing -$382M -$790M
Net change in cash $147M -$15M

Source: SEC companyfacts (US-GAAP 10-K) · * = computed (not a single XBRL tag) · fiscal year as labeled by the issuer · not adjusted or audited by Follow-The-Filings

ownership over time

filing count by report period · click a bar for that quarter’s holders