$25.95
+0.61 (+2.41%)
Market Cap
$6.8B
Shares Outstanding
243,770,575
Institutional Holders
409
Total Inst. Value
$186.1B
% of Float Held
96.5%
QoQ Holder Change
—
Institutional data as of Q1 2025
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | PRIMECAP MANAGEMENT CO/CA/ | $183.1B | 10,061,589 |
| 2 | AMERICAN SECURITIES LLC | $798.9M | 43,893,904 |
| 3 | BlackRock, Inc. | $332.1M | 18,248,989 |
| 4 | Invesco Ltd. | $312.9M | 17,191,110 |
| 5 | VANGUARD GROUP INC | $297.4M | 16,342,560 |
| 6 | STATE STREET CORP | $119.7M | 6,576,351 |
| 7 | FMR LLC | $80.2M | 4,408,949 |
| 8 | FRONTIER CAPITAL MANAGEMENT CO LLC | $65.1M | 3,578,732 |
| 9 | THOMPSON SIEGEL & WALMSLEY LLC | $60.5M | 3,326,378 |
| 10 | DISCOVERY CAPITAL MANAGEMENT, LLC / CT | $47.9M | 2,630,930 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ | +3.6M | $183.1B |
| BlackRock, Inc. | +1.5M | $332.1M |
| Invesco Ltd. | +3.3M | $312.9M |
| STATE STREET CORP | +122K | $119.7M |
| FMR LLC | +2.0M | $80.2M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| Kovitz Investment Group Partners, LLC | -11.7M | $56K |
| COOPER CREEK PARTNERS MANAGEMENT LLC | -2.9M | $22.3M |
| Castalian Partners, LLC | -696K | $5.5M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | -343K | $9.7M |
| THRIVENT FINANCIAL FOR LUTHERANS | -303K | $24K |
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Frequently Asked Questions
How many institutional investors hold AMTM?
As of Q1 2025, 409 institutional investors report holding AMTM (Amentum Holdings, Inc.) in their 13F filings.
What percentage of Amentum Holdings, Inc. is owned by institutions?
Institutional investors hold approximately 96.5% of Amentum Holdings, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most AMTM?
The largest institutional holder of AMTM is PRIMECAP MANAGEMENT CO/CA/ with $183.1B in shares.
Are institutions buying or selling AMTM?
This quarter, 113 institutions opened new positions in AMTM and 92 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.