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Of the 15 tracked institutions holding ACM, 8 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +4.1pt. 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 $3.44B across 39,035,277 shares. The largest holder is BlackRock, Inc. with a position worth $1.34B (0.02% of their portfolio). MAVERICK CAPITAL LTD opened a new position in the most recent quarter. 11 funds increased their holdings. 3 funds reduced their position.
Total Institutional Value
$3.44B
Total Shares Held
39,035,277
Institutional Holders
15
% of Shares Outstanding
30.4%
of 128.52M shares · SEC 2026-05-08
Days to Cover
5.5-3.5%
8.65M shares short · FINRA 2026-07-15
Tracked 13F institutions hold 30.4% 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 2026-05-08), 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 | BlackRock, Inc. | $1.34B | 0.02% | +3.6% |
| 2 | VANGUARD GROUP INC | $1.17B | 0.02% | -1.8% |
| 3 | STATE STREET CORP | $427.62M | 0.01% | -0.0% |
| 4 | FMR LLC | $178.81M | 0.01% | +77.7% |
| 5 | AQR CAPITAL MANAGEMENT LLC | $89.60M | 0.04% | +521.4% |
| 6 | MILLENNIUM MANAGEMENT LLC | $66.50M | 0.03% | +107.1% |
| 7 | CITADEL ADVISORS LLC | $60.62M | 0.04% | +38.8% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | $56.17M | 0.09% | +3.9% |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | $18.46M | 0.00% | +12.1% |
| 10 | Bridgewater Associates, LP | $15.54M | 0.07% | +329.2% |
| Description | Amount |
|---|---|
A/E SERVICES FOR HISTORIC STUDIES AT LUKEVILLE LPOE, AZ DOE & HSR UPDATE AT TECATE LPOE, CA | $72K |
PROGRAM MANAGEMENT INFORMATION SYSTEM AND SHORT-TERM PROGRAM MANAGEMENT SERVICES. | $5.8M |
A/E SERVICES TO DEVELOP A STUDY TO DEVELOP SOLUTIONS TO PERMANENTLY ADDRESS THE SOUTH FOUNDATION WALL ISSUE IN THE STEAM ROOM AT 26 FEDERAL PLAZA, NY, NY | $149K |
| Member | Type | Date |
|---|---|---|
| Alan Armstrong | Sell | Mar 27, 2026 |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ACM with a position worth $1.34B, representing 0.02% of their portfolio. In total, 15 institutional investors hold ACM with a combined value of $3.44B.
In the most recent quarter, 1 fund opened a new position in ACM. Additionally, 11 increased their holdings and 3 reduced their positions.
Institutional investors hold $3.44B worth of ACM stock across 15 positions. The largest institutional holder is BlackRock, Inc. with $1.34B 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.
Get notified when hedge funds change their ACM positions.
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 →
FIRE PROTECTION ENGINEERING (FPE) SUPPORT SEE SECTION J1 FOR ATTACHED STATEMENT OF WORK | $124K |
CMA SERVICES | $5.3M |
DESIGN, CONSTRUCTION PROCUREMENT AND M & I SERVICES FOR THE BROADWAY ANNEX AND FOB FACADE REPAIRS AT 26 FEDERAL PLAZA, NEW YORK, NY 10278. | $445K |
THE PURPOSE OF THE CALL ORDER IS TO PROVIDE FTA WITH SUPPORT CONDUCTING STATUTORILY REQUIRED ASSESSMENTS OF FUTURE ECONOMIC DEVELOPMENT EFFECTS OF CIG PROJECTS. | $118K |
ENGINEERING SERVICES FOR PROJECTS NC NP BLRI PVT PRES FY26(1), NP SER PMS FY26(1) AND NP SER PMS FY27(1) FOR THE PREPARATION OF THE PLANS, SPECIFICATIONS, AND ESTIMATE (PS&E) AND OTHER SUPPORTING DOCUMENTS IN ACCORDANCE WITH THE STATEMENT OF WORK | $1.6M |
THE PURPOSE OF THIS CONTRACT IS FOR NATIONAL STRATEGY FOR EMERGING TECHNOLOGIES TO SUPPORT AUTOMATED VEHICLE USE IN REMOTE PUBLIC LANDS. | $3.3M |
THE PURPOSE OF THIS CONTRACT IS TO PROVIDE A/E SERVICES FOR THE ASO PROTOTYPE LIBRARY. | $498K |
GEGR 247390 REPLACE OUTDATED HVAC SYSTEM | $272K |
TITLE III CONSTRUCTION MANAGEMENT SERVICES, REHABILITATE WESTSIDE OFF-GRID PHOTOVOLTAIC SYSTEM, PINNACLES NATIONAL PARK, CALIFORNIA | $70K |
SOUTHEAST REGIONAL ARCHITECT-ENGINEER (SERAE) TASK ORDER TO PROVIDE A FACILLITY PLAN AND CONSTRUCTION COMPLETION REVIEW (GIGABAY). | $274K |
AWARD - HARDENING MANAGEMENT & INSPECTION AND GARAGE PROTECTION PROJECT FOR THE KINNEARY FEDERAL BUILDING AND COURTHOUSE IN COLUMBUS, OH | $92K |
MULTIPLE-AWARD INDEFINITE DELIVERY/INDEFINITE QUANTITY (IDIQ) TASK ORDER CONTRACT (MATOC) FOR PROFESSIONAL ARCHITECT-ENGINEERING (A/E) SERVICES THAT WILL COVER THE ENTIRE UNITED STATES AND ITS TERRITORIES | $5K |
NEW TASK ORDER FOR DESIGN, ENGINEERING AND CONSTRUCTION SUPPORT SERVICES FOR THE REPLACEMENT OF THE ABOVE GROUND FIRE WATER STORAGE TANKS AT BUILDING 303A | $266K |
STEAM DISTRIBUTION SYSTEM RESTORATION | $255K |
TITLE II DESIGN DEVELOPMENT AND FINAL CONSTRUCTION DOCUMENTS SERVICES, REPAIR FAILING RETAINING WALL AT DIAMOND RANCH, SANTA MONICA NATIONAL RECREATION AREA, CALIFORNIA | $114K |
REPAIR ADMINISTRATION BUILDING 658-26-108 | $893K |
DESIGN SERVICES FOR REPLACE ROOF AND HVAC STATION OPS CENTER AT STA MARBLEHEAD | $267K |
Source: USASpending.gov · Federal contract awards for ACM
Last Close
$70.56
2026-07-24
YTD
-26.8%
5% of 52-week range
