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Holder clone rankings through .
Of the 15 tracked institutions holding ACM, 5 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +1.1pt. It's a gauge of who owns the name, not just how many.
Among the 15 tracked institutional investors we monitor, ACM (AECOM) is held with a combined value of $3.11B across 40,075,981 shares. The largest holder is VANGUARD GROUP INC with a position worth $1.17B (0.02% of their portfolio). 8 funds increased their holdings. 7 funds reduced their position.
Total Institutional Value
$3.11B
Total Shares Held
40,075,981
Institutional Holders
15
% of Shares Outstanding
31.1%
of 128.70M shares · SEC 2026-08-07
Days to Cover
3.3-6.3%
5.94M shares short · FINRA 2026-09-30
Tracked 13F institutions hold 31.1% of ACM's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-08-07), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $1.17B | 0.02% | -1.8% |
| 2 | BlackRock, Inc. | $1.00B | 0.01% | -8.8% |
| 3 | STATE STREET CORP | $286.61M | 0.01% | -18.6% |
| 4 | FMR LLC | $262.32M | 0.01% | +78.3% |
| 5 | AQR CAPITAL MANAGEMENT LLC | $124.01M | 0.04% | +69.2% |
| 6 | MILLENNIUM MANAGEMENT LLC | $92.23M | 0.06% | +68.5% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | $52.13M | 0.07% | +12.8% |
| 8 | CITADEL ADVISORS LLC | $47.31M | 0.03% | -5.2% |
| 9 | Gotham Asset Management, LLC | $31.73M | 0.07% | +237.3% |
| 10 | Bridgewater Associates, LP | $11.41M | 0.05% | -10.8% |
| Description | Amount |
|---|---|
COOLING TOWER DESIGN HUGO BLACK FB AL0081ZZ BIRMINGHAM, AL 35203 | $320K |
GSA WICHITA FIRE ALARM REPLACEMENT DESIGN AT THE WICHITA US COURTHOUSE 401 NORTH MARKET ST, WICHITA KS 67202 | $197K |
ARCHITECTURAL ENGINEERING TECHNICAL STUDY AND ASSESSMENT OF ELEVATORS AT THE US POST OFFICE AND WATIES WARING JUDICIAL CENTER IN CHARLESTON, SC. | $170K |
| Member | Type | Date |
|---|---|---|
| Alan Armstrong | Sell | Mar 27, 2026 |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of ACM with a position worth $1.17B, representing 0.02% of their portfolio. In total, 15 institutional investors hold ACM with a combined value of $3.11B.
Institutional investors hold $3.11B worth of ACM stock across 15 positions. The largest institutional holder is VANGUARD GROUP INC with $1.17B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ACM, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
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Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
PROVIDE CONSTRUCTION MANAGEMENT AS AN AGENT (CMA) NON-PERSONAL ADVISORY SERVICES AS DESCRIBED IN THE PERFORMANCE WORK STATEMENT (PWS). | $1.3M |
PROFESSIONAL ARCHITECT-ENGINEER (A-E) DESIGN SERVICES FOR CONSTRUCTION ADMINISTRATIVE (CA) SERVICES FOR COF GB UPGRADE DOMESTIC WATER SYSTEM DESIGN PHASE 1 AT NASA/GSFC IN ACCORDANCE WITH ATTACHMENT A - STATEMENT OF WORK (SOW) CA COF GB UPGRADE DO | $100K |
TEN MILE DRAIN STORM SEWER REPLACEMENT IN ST. CLAIR SHORES, MI | $23.3M |
FY27 NECSAS AND ASSOCIATED SECO TECHNICAL SUPPORT, AGAINST AECOM IDIQ CONTRACT 1305M421DNAAA0016. PERIOD OF PERFORMANCE SHALL COMMENCE FROM OCTOBER 1, 2026 THROUGH SEPTEMBER 30, 2027. | $655K |
ARCHITECT AND ENGINEERING SERVICES FOR THE ODELL HORTON FB WORKPLACE NEEDS STUDY FOR THE THE ODELL HORTON FEDERAL BUILDING AT 167 N MAIN STREET, MEMPHIS, TENNESSEE 38103-1816. | $1.3M |
SEMI-ANNUAL GROUNDWATER SAMPLING TESTING | $25K |
SOCIAL SECURITY ADMINISTRATION SECURITY, OWNERS PROJECT CRITERIA DESIGN-BUILD PROCUREMENT CRITERIA PACKAGE PROJECT | $1.0M |
CONTINUATION OF ENGINEERING AND CONSTRUCTION SUPPORT SERVICES PROJECTS WHICH SHALL SUPPORT FIVE INDEPENDENT TASKS. TASK 1 IS SUPPORT REPLACE AMES POWER MANAGEMENT SYSTEM (APMS). TASK 2 IS SUPPORT REPLACE APMS CRITICAL METERS. TASK 3 IS SUPPORT REP | $245K |
TASK ORDER AWARD FOR BRATISLAVA CHANCERY CULTURAL SIGNIFICANT STUDY (CSS) | $172K |
PROJECT 663-26-002 - DOMESTIC WATER PUMP INSTALLATION, VAPUG HEALTH CARE SYSTEM | $110K |
BILLINGS PCE (08ME) - NEW TASK ORDER: REMEDIATION ENVIRONMENTAL SERVICES FOR THE INSTALLATION OF VARIOUS RESIDENTIAL MONITORING, MITIGATION, & CONTROL SYSTEMS. | $5.4M |
THE SINGLE FIRM FIXED-PRICE DELIVERY ORDER IS BEING WRITTEN IS ACCORDANCE WITH THE TERMS AND CONDITIONS OF A&E IDIQ 70Z05026D43000013 FOR FACILITY CONDITION ASSESSMENT AND MASTER PLAN UPGRADES FOR ROWLEY TRAINING CENTER (RTC). | $2.8M |
HYDRO & HYDRAULIC ANALYSIS: MO CA HI | $498K |
EXPANDING ABATEMENT OPTIONS IN FHWA'S TRAFFIC NOISE MODEL | $293K |
WARSAW COMPOUND SECURITY UPGRADE SUPPORT SERVICES | $468K |
MOJAVE DESERT SEED INCREASE CONTRACT | $324K |
AWARD OF A-E DESIGN SERVICES REPLACE HVAC BUILDING 96, BASE ELIZABETH CITY, NC | $161K |
Source: USASpending.gov · Federal contract awards for ACM
Last Close
$60.49
2026-10-23
YTD
-37.3%
3% of 52-week range
