Amentum Holdings, Inc. (AMTM) — Institutional Holders, Q2 2026 (page 3)
466 institutional investment managers reported a AMTM position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $4.3B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 201 to 300. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
AMTM 13F holders ranked 201–300 of 466
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 201 | SECURITY NATIONAL BANK OF SO DAK#201 · 25,964 sh | 25,964 | $536.7K | 0.25% | -0.6% |
| 202 | LEAVELL INVESTMENT MANAGEMENT#202 · 24,660 sh | 24,660 | $509.7K | 0.02% | +48.2% |
| 203 | OPPENHEIMER ASSET MANAGEMENT#203 · 24,597 sh | 24,597 | $508.4K | — | -12.6% |
| 204 | Feynman Point Asset Management#204 · 24,075 sh | 24,075 | $497.6K | 0.91% | New |
| 205 | Peak Asset Management#205 · 24,000 sh | 24,000 | $496.1K | 0.07% | 0.0% |
| 206 | Pathstone#206 · 23,947 sh | 23,947 | $495.0K | <0.01% | +9.9% |
| 207 | SECURITY NATIONAL BANK OF SIOUX CITY IOWA#207 · 23,326 sh | 23,326 | $482.1K | 0.20% | +31.3% |
| 208 | US BANCORP \DE\#208 · 22,681 sh | 22,681 | $468.8K | <0.01% | -6.6% |
| 209 | HSBC PLC#209 · 22,218 sh | 22,218 | $460.1K | <0.01% | New |
| 210 | Toroso Investments#210 · 22,071 sh | 22,071 | $456.2K | <0.01% | +54.0% |
| 211 | DEUTSCHE BANK AG\#211 · 21,821 sh | 21,821 | $451.0K | <0.01% | +9.9% |
| 212 | Grantham, Mayo, Van Otterloo#212 · 21,601 sh | 21,601 | $446.5K | <0.01% | New |
| 213 | NEVILLE RODIE & SHAW#213 · 21,486 sh | 21,486 | $444.0K | — | -1.5% |
| 214 | Gryphon Financial Partners#214 · 21,057 sh | 21,057 | $435.2K | 0.04% | +11.5% |
| 215 | GUIDANCE CAPITAL#215 · 20,853 sh | 20,853 | $433.1K | 0.09% | +7.1% |
| 216 | STEPHENS#216 · 20,516 sh | 20,516 | $424.1K | <0.01% | -12.3% |
| 217 | BANK OF MONTREAL#217 · 20,485 sh | 20,485 | $423.4K | <0.01% | +2.6% |
| 218 | Summit Trail Advisors#218 · 20,229 sh | 20,229 | $418.1K | <0.01% | +44.9% |
| 219 | LATHROP INVESTMENT MANAGEMENT#219 · 19,526 sh | 19,526 | $404.0K | 0.07% | -2.6% |
| 220 | MUTUAL OF AMERICA CAPITAL MANAGEMENT#220 · 19,129 sh | 19,129 | $395.4K | — | +8.8% |
| 221 | WEATHERLY ASSET MANAGEMENT L. P.#221 · 18,650 sh | 18,650 | $385.5K | — | +92.5% |
| 222 | COMMONWEALTH EQUITY SERVICES#222 · 18,240 sh | 18,240 | $377.0K | <0.01% | +4.3% |
| 223 | HANCOCK WHITNEY#223 · 18,236 sh | 18,236 | $376.9K | <0.01% | New |
| 224 | TOTH FINANCIAL ADVISORY#224 · 18,226 sh | 18,226 | $376.7K | — | -18.5% |
| 225 | ASO GROUP Ltd#225 · 17,724 sh | 17,724 | $366.0K | 0.16% | 0.0% |
| 226 | State of Wyoming#226 · 17,667 sh | 17,667 | $365.2K | 0.04% | +112.8% |
| 227 | Shay Capital#227 · 17,500 sh | 17,500 | $361.7K | 0.02% | New |
| 228 | CLIFFORD SWAN INVESTMENT COUNSEL#228 · 17,495 sh | 17,495 | $361.6K | 0.01% | -8.9% |
| 229 | Vanguard Personalized Indexing Management#229 · 17,111 sh | 17,111 | $353.7K | <0.01% | +3.8% |
| 230 | CIBC Asset Management#230 · 17,104 sh | 17,104 | $353.5K | <0.01% | -7.2% |
| 231 | SIMPLEX TRADING#231 · 17,003 sh | 17,003 | $351.5K | <0.01% | New |
| 232 | Machina Capital S.A.S.#232 · 16,681 sh | 16,681 | $344.8K | 0.05% | +101.4% |
| 233 | Cambridge Investment Research Advisors#233 · 16,485 sh | 16,485 | $341.0K | <0.01% | -14.3% |
| 234 | Elo Mutual Pension Insurance#234 · 16,030 sh | 16,030 | $331.3K | <0.01% | New |
| 235 | TEACHER RETIREMENT SYSTEM OF TEXAS#235 · 15,882 sh | 15,882 | $328.3K | <0.01% | +63.2% |
| 236 | Sanctuary Advisors#236 · 15,732 sh | 15,732 | $325.2K | <0.01% | New |
| 237 | Heritage Wealth Advisors#237 · 15,532 sh | 15,532 | $321.0K | 0.01% | -5.0% |
| 238 | TRUIST FINANCIAL#238 · 15,323 sh | 15,323 | $316.7K | <0.01% | -6.5% |
| 239 | Caitong International Asset Management , Ltd#239 · 15,239 sh | 15,239 | $315.0K | 0.04% | +418.9% |
| 240 | Moran Wealth Management#240 · 15,076 sh | 15,076 | $311.6K | — | -23.0% |
| 241 | FIRST MANHATTAN#241 · 14,242 sh | 14,242 | $294.4K | <0.01% | +0.9% |
| 242 | HighTower Advisors#242 · 14,108 sh | 14,108 | $291.6K | <0.01% | -24.2% |
| 243 | Walleye Capital#243 · 13,836 sh | 13,836 | $286.0K | <0.01% | +261.5% |
| 244 | FRANKLIN RESOURCES#244 · 13,587 sh | 13,587 | $280.8K | <0.01% | +14.7% |
| 245 | PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#245 · 13,525 sh | 13,525 | $280.0K | <0.01% | 0.0% |
| 246 | Intrinsic Value Partners#246 · 13,399 sh | 13,399 | $277.0K | 0.19% | -3.6% |
| 247 | Sterling Capital Management#247 · 13,388 sh | 13,388 | $276.7K | — | -7.1% |
| 248 | Granite Investment Partners#248 · 13,248 sh | 13,248 | $273.8K | 0.01% | 0.0% |
| 249 | Formidable Asset Management#249 · 13,065 sh | 13,065 | $270.1K | 0.04% | -3.0% |
| 250 | First Bank#250 · 13,029 sh | 13,029 | $269.3K | — | -2.9% |
| 251 | QUADRANT CAPITAL GROUP#251 · 13,002 sh | 13,002 | $268.8K | — | -52.1% |
| 252 | MERCER GLOBAL ADVISORS#252 · 12,996 sh | 12,996 | $268.6K | <0.01% | -16.0% |
| 253 | Cetera Investment Advisers#253 · 12,885 sh | 12,885 | $266.3K | <0.01% | -47.1% |
| 254 | Mitsubishi UFJ & Banking#254 · 12,499 sh | 12,499 | $258.4K | <0.01% | New |
| 255 | CAHABA WEALTH MANAGEMENT#255 · 12,076 sh | 12,076 | $249.6K | — | 0.0% |
| 256 | PNC FINANCIAL SERVICES GROUP#256 · 12,020 sh | 12,020 | $248.5K | <0.01% | -12.1% |
| 257 | 111 Capital#257 · 11,779 sh | 11,779 | $243.5K | 0.04% | New |
| 258 | PFG Investments#258 · 11,351 sh | 11,351 | $234.6K | <0.01% | +9.9% |
| 259 | Lipe & Dalton#259 · 10,916 sh | 10,916 | $226.0K | — | 0.0% |
| 260 | XPONANCE#260 · 10,908 sh | 10,908 | $225.5K | <0.01% | -5.0% |
| 261 | SHUFRO ROSE#261 · 10,734 sh | 10,734 | $221.9K | 0.01% | 0.0% |
| 262 | Janney Montgomery Scott#262 · 10,442 sh | 10,442 | $216.0K | <0.01% | -18.0% |
| 263 | Swiss Life Asset Management Ltd#263 · 10,448 sh | 10,448 | $216.0K | <0.01% | -36.7% |
| 264 | AE Wealth Management#264 · 10,379 sh | 10,379 | $214.5K | <0.01% | +12.3% |
| 265 | LECAP ASSET MANAGEMENT LTD#265 · 10,370 sh | 10,370 | $214.3K | — | New |
| 266 | Advyzon Investment Management#266 · 10,228 sh | 10,228 | $211.4K | 0.02% | -1.2% |
| 267 | Cinctive Capital Management#267 · 10,000 sh | 10,000 | $206.7K | <0.01% | New |
| 268 | Allworth Financial#268 · 9,805 sh | 9,805 | $202.7K | <0.01% | -2.0% |
| 269 | SFMG#269 · 9,785 sh | 9,785 | $202.3K | 0.01% | 0.0% |
| 270 | Excelsior Advisor Network#270 · 9,779 sh | 9,779 | $202.1K | 0.03% | New |
| 271 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt#271 · 9,500 sh | 9,500 | $196.4K | <0.01% | 0.0% |
| 272 | Ensign Peak Advisors#272 · 9,386 sh | 9,386 | $194.0K | <0.01% | 0.0% |
| 273 | DANSKE BANK A/S#273 · 8,536 sh | 8,536 | $176.4K | <0.01% | +5.0% |
| 274 | SRS Capital Advisors#274 · 8,294 sh | 8,294 | $171.4K | <0.01% | +399.3% |
| 275 | Aberdeen Wealth Management#275 · 8,291 sh | 8,291 | $171.4K | 0.08% | -4.0% |
| 276 | Smithfield#276 · 7,890 sh | 7,890 | $161.0K | <0.01% | 0.0% |
| 277 | CX Institutional#277 · 7,694 sh | 7,694 | $159.0K | — | -2.6% |
| 278 | STRS OHIO#278 · 6,195 sh | 6,195 | $128.1K | <0.01% | +62.7% |
| 279 | KBC Group NV#279 · 5,431 sh | 5,431 | $112.0K | — | 0.0% |
| 280 | BOK Financial Private Wealth#280 · 5,268 sh | 5,268 | $108.9K | <0.01% | -14.0% |
| 281 | GAMMA Investing#281 · 4,958 sh | 4,958 | $102.5K | — | -12.4% |
| 282 | Horizon Investments#282 · 4,407 sh | 4,407 | $91.1K | <0.01% | +18.4% |
| 283 | Rockefeller Capital Management L.P.#283 · 4,108 sh | 4,108 | $84.9K | <0.01% | -3.4% |
| 284 | New Age Alpha Advisors#284 · 4,015 sh | 4,015 | $83.0K | <0.01% | New |
| 285 | Parallel Advisors#285 · 3,948 sh | 3,948 | $81.6K | <0.01% | -8.1% |
| 286 | WHITTIER#286 · 3,614 sh | 3,614 | $80.4K | <0.01% | 0.0% |
| 287 | Washington Advisors#287 · 3,598 sh | 3,598 | $74.4K | — | -55.7% |
| 288 | Covestor Ltd#288 · 3,512 sh | 3,512 | $73.0K | 0.04% | +47.9% |
| 289 | TD Waterhouse Canada#289 · 3,342 sh | 3,342 | $67.5K | — | -24.9% |
| 290 | MCDONALD PARTNERS#290 · 3,092 sh | 3,092 | $63.9K | 0.02% | New |
| 291 | Farther Finance Advisors#291 · 2,521 sh | 2,521 | $52.1K | — | -4.9% |
| 292 | MetLife Investment Management#292 · 2,489 sh | 2,489 | $51.4K | <0.01% | -4.6% |
| 293 | Integrated Wealth Concepts#293 · 2,405 sh | 2,405 | $49.7K | <0.01% | New |
| 294 | BNP Paribas Asset Management Holding S.A.#294 · 2,375 sh | 2,375 | $49.1K | 0.00% | +2.1% |
| 295 | LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP#295 · 2,174 sh | 2,174 | $44.9K | — | 0.0% |
| 296 | SIGNATUREFD#296 · 2,164 sh | 2,164 | $44.7K | — | -7.3% |
| 297 | Pinnacle Wealth Planning Services#297 · 1,932 sh | 1,932 | $39.9K | <0.01% | -38.5% |
| 298 | UMB Bank, n.a.#298 · 1,844 sh | 1,844 | $38.1K | <0.01% | -26.3% |
| 299 | Salomon & Ludwin#299 · 1,868 sh | 1,868 | $37.7K | <0.01% | +43.1% |
| 300 | Nykredit A/S#300 · 1,800 sh | 1,800 | $37.2K | <0.01% | — |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.