AMERICAN TOWER CORP /MA/ (AMT) — Institutional Holders, Q2 2026 (page 4)
1,763 institutional investment managers reported a AMT position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $72.0B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 301 to 400. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
AMT 13F holders ranked 301–400 of 1,763
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 301 | Advisors Asset Management#301 · 98,143 sh | 98,143 | $16.1M | 0.24% | -8.8% |
| 302 | Rockefeller Capital Management L.P.#302 · 97,932 sh | 97,932 | $16.0M | 0.02% | -6.3% |
| 303 | EDGAR LOMAX#303 · 97,685 sh | 97,685 | $16.0M | 1.19% | -8.3% |
| 304 | LIBERTY ONE INVESTMENT MANAGEMENT#304 · 96,548 sh | 96,548 | $15.8M | 1.58% | New |
| 305 | USS Investment Management Ltd#305 · 96,155 sh | 96,155 | $15.7M | 0.06% | +11.3% |
| 306 | Aptus Capital Advisors#306 · 91,445 sh | 91,445 | $15.0M | 0.10% | +9.1% |
| 307 | Pathstone#307 · 90,324 sh | 90,324 | $14.8M | 0.04% | +3.8% |
| 308 | PINEBRIDGE INVESTMENTS#308 · 89,330 sh | 89,330 | $14.6M | 0.12% | +12.8% |
| 309 | AMALGAMATED BANK#309 · 89,123 sh | 89,123 | $14.6M | — | -9.6% |
| 310 | HEITMAN REAL ESTATE SECURITIES#310 · 89,033 sh | 89,033 | $14.6M | 0.93% | +18.4% |
| 311 | BWCP#311 · 88,418 sh | 88,418 | $14.5M | 2.07% | +4.1% |
| 312 | XTX Topco Ltd#312 · 87,858 sh | 87,858 | $14.4M | 0.19% | +184.9% |
| 313 | FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A.#313 · 85,263 sh | 85,263 | $13.9M | — | +4.2% |
| 314 | Pinnacle Financial Partners#314 · 84,692 sh | 84,692 | $13.9M | 0.09% | -2.0% |
| 315 | LBP AM SA#315 · 84,252 sh | 84,252 | $13.8M | 0.14% | +23.9% |
| 316 | Vantage Investment Partners#316 · 84,031 sh | 84,031 | $13.7M | — | +21.5% |
| 317 | PRUDENTIAL PLC#317 · 83,340 sh | 83,340 | $13.6M | 0.07% | +1.4% |
| 318 | SCOTIA CAPITAL#318 · 83,233 sh | 83,233 | $13.6M | 0.05% | +0.2% |
| 319 | Motley Fool Asset Management#319 · 82,722 sh | 82,722 | $13.5M | — | -3.5% |
| 320 | MML INVESTORS SERVICES#320 · 81,728 sh | 81,728 | $13.4M | 0.03% | +63.1% |
| 321 | MAR VISTA INVESTMENT PARTNERS#321 · 81,434 sh | 81,434 | $13.3M | 1.33% | -8.8% |
| 322 | Rockbridge Capital Management#322 · 78,863 sh | 78,863 | $12.9M | 8.31% | -5.0% |
| 323 | Rakuten Investment Management#323 · 76,213 sh | 76,213 | $12.9M | 0.04% | +9.7% |
| 324 | LGT Group Foundation#324 · 77,193 sh | 77,193 | $12.6M | 0.14% | +8.1% |
| 325 | Barton Investment Management#325 · 77,038 sh | 77,038 | $12.6M | — | -1.8% |
| 326 | Timbercreek Asset Management Ltd.#326 · 75,688 sh | 75,688 | $12.6M | 1.74% | +2410.4% |
| 327 | Carnegie Investment Counsel#327 · 76,525 sh | 76,525 | $12.5M | — | -12.3% |
| 328 | Capital Analysts#328 · 75,234 sh | 75,234 | $12.3M | 0.28% | +4.7% |
| 329 | TD Waterhouse Canada#329 · 73,822 sh | 73,822 | $12.3M | — | -1.0% |
| 330 | Resona Asset Management ,Ltd.#330 · 72,478 sh | 72,478 | $12.0M | 0.06% | -5.1% |
| 331 | STOCK YARDS BANK#331 · 73,395 sh | 73,395 | $12.0M | 0.34% | -17.1% |
| 332 | Wealthfront Advisers#332 · 73,066 sh | 73,066 | $12.0M | 0.02% | -33.0% |
| 333 | Engineers Gate Manager#333 · 72,676 sh | 72,676 | $11.9M | 0.15% | New |
| 334 | Vontobel Holding Ltd.#334 · 72,376 sh | 72,376 | $11.8M | — | -84.9% |
| 335 | Fideuram Asset Management (Ireland) dac#335 · 64,078 sh | 64,078 | $11.8M | 0.22% | +4268.0% |
| 336 | OSAIC#336 · 71,246 sh | 71,246 | $11.7M | 0.01% | +27.4% |
| 337 | Vest Financial#337 · 71,270 sh | 71,270 | $11.7M | — | +1.6% |
| 338 | FIRST ADVISORS#338 · 71,226 sh | 71,226 | $11.7M | <0.01% | -45.8% |
| 339 | ANCHOR CAPITAL ADVISORS#339 · 70,867 sh | 70,867 | $11.6M | 0.33% | -25.6% |
| 340 | Utah Retirement Systems#340 · 70,764 sh | 70,764 | $11.6M | 0.11% | -7.0% |
| 341 | BRITISH COLUMBIA INVESTMENT MANAGEMENT#341 · 69,911 sh | 69,911 | $11.4M | 0.07% | -62.9% |
| 342 | Police & Firemen's Retirement System of New Jersey#342 · 69,542 sh | 69,542 | $11.4M | 0.09% | -3.4% |
| 343 | NEW YORK LIFE INVESTMENT MANAGEMENT#343 · 69,372 sh | 69,372 | $11.3M | 0.08% | -0.3% |
| 344 | Metis Global Partners#344 · 69,324 sh | 69,324 | $11.3M | 0.26% | +77.6% |
| 345 | Sumitomo Mitsui DS Asset Management Company, Ltd#345 · 69,317 sh | 69,317 | $11.3M | — | +0.2% |
| 346 | Epoch Investment Partners#346 · 68,619 sh | 68,619 | $11.2M | 0.06% | -5.8% |
| 347 | Wallington Asset Management#347 · 68,499 sh | 68,499 | $11.2M | 1.38% | -0.1% |
| 348 | Groupe la Francaise#348 · 67,010 sh | 67,010 | $11.0M | 0.07% | +737.9% |
| 349 | DF DENT#349 · 66,426 sh | 66,426 | $10.9M | 0.21% | -49.6% |
| 350 | MIZUHO SECURITIES USA#350 · 64,776 sh | 64,776 | $10.9M | 0.11% | +128.9% |
| 351 | MILLER HOWARD INVESTMENTS#351 · 66,322 sh | 66,322 | $10.8M | — | +8.1% |
| 352 | Calamos Advisors#352 · 66,276 sh | 66,276 | $10.8M | 0.04% | -54.8% |
| 353 | Raiffeisen Bank International AG#353 · 64,256 sh | 64,256 | $10.8M | — | +14.4% |
| 354 | FIRST HORIZON NATIONAL#354 · 66,131 sh | 66,131 | $10.8M | — | -9.2% |
| 355 | B. Metzler seel. Sohn & AG#355 · 66,057 sh | 66,057 | $10.8M | 0.09% | +17.2% |
| 356 | CULLEN/FROST BANKERS#356 · 65,764 sh | 65,764 | $10.8M | — | -1.0% |
| 357 | Toroso Investments#357 · 64,617 sh | 64,617 | $10.6M | 0.02% | +77.2% |
| 358 | FULLER & THALER ASSET MANAGEMENT#358 · 63,457 sh | 63,457 | $10.4M | 0.03% | +0.6% |
| 359 | DAVIS SELECTED ADVISERS#359 · 63,250 sh | 63,250 | $10.3M | 0.04% | -2.1% |
| 360 | UNIVEST FINANCIAL#360 · 62,911 sh | 62,911 | $10.3M | 0.51% | -3.4% |
| 361 | WASHINGTON#361 · 62,249 sh | 62,249 | $10.2M | — | -3.2% |
| 362 | YOUSIF CAPITAL MANAGEMENT#362 · 62,173 sh | 62,173 | $10.2M | — | -5.3% |
| 363 | STEPHENS#363 · 61,576 sh | 61,576 | $10.1M | 0.11% | -0.6% |
| 364 | Skylands Capital#364 · 61,491 sh | 61,491 | $10.1M | — | +4.7% |
| 365 | River Road Asset Management#365 · 61,338 sh | 61,338 | $10.0M | 0.11% | -6.0% |
| 366 | Ethic#366 · 61,239 sh | 61,239 | $10.0M | 0.12% | +10.1% |
| 367 | Cohen Klingenstein#367 · 60,914 sh | 60,914 | $10.0M | — | 0.0% |
| 368 | LGT Fund Management Ltd.#368 · 60,063 sh | 60,063 | $9.8M | 0.41% | -7.6% |
| 369 | Defiance ETFs#369 · 59,149 sh | 59,149 | $9.8M | 0.13% | -2.0% |
| 370 | Penserra Capital Management#370 · 60,040 sh | 60,040 | $9.8M | 0.08% | -2.4% |
| 371 | PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#371 · 59,890 sh | 59,890 | $9.8M | 0.03% | -0.3% |
| 372 | CABOT WEALTH MANAGEMENT#372 · 59,299 sh | 59,299 | $9.7M | 0.99% | 0.0% |
| 373 | Edge Wealth Management#373 · 59,087 sh | 59,087 | $9.7M | — | +0.4% |
| 374 | Capital Innovations#374 · 58,925 sh | 58,925 | $9.6M | 2.50% | New |
| 375 | MERCER GLOBAL ADVISORS#375 · 58,701 sh | 58,701 | $9.6M | 0.01% | +64.4% |
| 376 | Soltis Investment Advisors#376 · 58,660 sh | 58,660 | $9.6M | — | +9.4% |
| 377 | BLI - Banque de Luxembourg Investments#377 · 55,995 sh | 55,995 | $9.5M | 0.33% | New |
| 378 | Sanctuary Advisors#378 · 57,761 sh | 57,761 | $9.4M | 0.04% | -5.2% |
| 379 | OREGON PUBLIC EMPLOYEES RETIREMENT FUND#379 · 57,322 sh | 57,322 | $9.4M | 0.10% | +6.9% |
| 380 | ING GROEP NV#380 · 57,282 sh | 57,282 | $9.4M | 0.05% | +53.3% |
| 381 | PBU - The Pension Fund of Early Childhood & Youth Educators#381 · 57,164 sh | 57,164 | $9.4M | 0.21% | -70.4% |
| 382 | Jupiter Topco#382 · 56,539 sh | 56,539 | $9.2M | <0.01% | — |
| 383 | SOROS CAPITAL MANAGEMENT#383 · 56,298 sh | 56,298 | $9.2M | 1.65% | +6.4% |
| 384 | HOWLAND CAPITAL MANAGEMENT#384 · 54,438 sh | 54,438 | $9.0M | — | -40.9% |
| 385 | PREVAIL INNOVATIVE WEALTH ADVISORS#385 · 54,433 sh | 54,433 | $8.9M | — | New |
| 386 | MACKENZIE FINANCIAL#386 · 54,410 sh | 54,410 | $8.9M | <0.01% | -4.7% |
| 387 | Haverford#387 · 54,307 sh | 54,307 | $8.9M | 0.08% | -65.9% |
| 388 | TRILLIUM ASSET MANAGEMENT#388 · 53,510 sh | 53,510 | $8.8M | 0.27% | -5.1% |
| 389 | NewEdge Advisors#389 · 53,338 sh | 53,338 | $8.7M | 0.03% | New |
| 390 | Waverly Advisors#390 · 53,328 sh | 53,328 | $8.7M | 0.05% | +16.7% |
| 391 | BRIDGES INVESTMENT MANAGEMENT#391 · 52,869 sh | 52,869 | $8.6M | 0.11% | +0.2% |
| 392 | AIA Group Ltd#392 · 52,804 sh | 52,804 | $8.6M | 0.11% | -22.7% |
| 393 | Rafferty Asset Management#393 · 52,474 sh | 52,474 | $8.6M | 0.02% | +31.9% |
| 394 | Adelante Capital Management#394 · 52,165 sh | 52,165 | $8.5M | 0.56% | -3.9% |
| 395 | OP Asset Management Ltd#395 · 52,064 sh | 52,064 | $8.5M | 0.09% | +9.2% |
| 396 | Candriam S.C.A.#396 · 51,670 sh | 51,670 | $8.4M | 0.04% | -4.7% |
| 397 | Spears Abacus Advisors#397 · 51,456 sh | 51,456 | $8.4M | 0.15% | New |
| 398 | WILKINS INVESTMENT COUNSEL#398 · 51,244 sh | 51,244 | $8.4M | 1.13% | +1.6% |
| 399 | Horizon Investments#399 · 51,205 sh | 51,205 | $8.4M | 0.09% | -12.4% |
| 400 | Vanguard Personalized Indexing Management#400 · 51,117 sh | 51,117 | $8.4M | 0.07% | -2.2% |
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.