ACM Institutional Ownership
Who owns Aecom and what the big funds did with it last quarter, from every SEC 13F filing. 575 funds reported holding ACM at Jun 30, 2026, together owning 92.9% of the company.
- ▼260 buying vs 364 selling
- ▲Held by funds +4.6 pts
- ▼Funds holding -51
- ●Superinvestors: 2 added, 2 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 575 | 626 | −8.1% |
| In funds' top 10 | 1 | 1 | 0.0% |
| 13F shares | 120M | 114M | +5.2% |
| Held by funds | 92.9% | 88.3% | +4.6 pts |
| New positions | 75 | 93 | −19.4% |
| Increased | 185 | 229 | −19.2% |
| Reduced | 236 | 204 | +15.7% |
| Sold out | 128 | 117 | +9.4% |
| Calls (shares) | 13K | 16K | −15.2% |
| Puts (shares) | 21K | 9,600 | +121.9% |
| Put/call ratio | 1.59 | 0.61 | +161.6% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in ACM
All superinvestors →
Who owns ACM
share of fund held shares- Index and passive funds35.9%
- Active managers and hedge funds45.1%
- Banks and brokers13.7%
- Pensions, insurers and other5.3%
The top 10 holders own 47.7% of all ACM shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
172 funds changed their position- DekaBank Deutsche GirozentraleTrimmed−664K sh
- Robeco Institutional Asset Management B.V.Trimmed−271K sh
- Mackenzie Financial CorpAdded+266K sh
- KBC Group NVTrimmed−132K sh
- Robeco Schweiz AGAdded+100K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 11.17% | 14.4M | $1B | −1.4M |
| 2 | Primecap Management Co/ca/ | 6.83% | 8.8M | $613M | +140K |
| 3 | Vanguard Capital Management LLC | 4.51% | 5.8M | $405M | +7,676 |
| 4 | Barrow Hanley Mewhinney & Strauss LLC | 4.27% | 5.5M | $384M | +2.6M |
| 5 | Vanguard Portfolio Management LLC | 4.26% | 5.5M | $383M | −20K |
| 6 | State Street Corp | 3.19% | 4.1M | $287M | −935K |
| 7 | Fmr LLC | 2.92% | 3.8M | $262M | +1.7M |
| 8 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | 2.77% | 3.6M | $249M | +83K |
| 9 | Invesco Ltd. | 2.48% | 3.2M | $223M | −383K |
| 10 | First Trust Advisors LP | 1.90% | 2.4M | $171M | −580K |
- Barrow Hanley Mewhinney & Strauss LLC+2.6M sh+$185M
- Arrowstreet Capital, Limited Partnership+1.9M sh+$130M
- Norges Bank+1.9M sh+$129M
- Qube Research & Technologies Ltd+1.7M sh+$117M
- Fmr LLC+1.7M sh+$115M
- CIBC Bancorp USA Inc.+917K sh+$64M
- Impax Asset Management Group plc+746K sh+$52M
- AQR Capital Management LLC+734K sh+$50.7M
- Pictet Asset Management Holding SA−2M sh−$138M
- BlackRock, Inc.−1.4M sh−$96.4M
- Lord, Abbett & Co. LLC−1M sh−$85.2M
- State Street Corp−935K sh−$65.3M
- Northern Trust Corp−839K sh−$58.6M
- Lazard Asset Management LLC−633K sh−$44.2M
- First Trust Advisors LP−580K sh−$40.5M
- Nordea Investment Management AB−525K sh−$36M
ACM institutional ownership FAQ
Who owns the most ACM stock?
In Q2 2026 13F filings the largest holder of ACM was BlackRock, Inc., followed by Primecap Management Co/ca/ and Vanguard Capital Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of ACM is owned by institutions?
Funds that file 13F reports held 92.9% of ACM's shares at Jun 30, 2026, compared with 88.3% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying ACM?
In Q2 2026, 260 funds bought ACM (75 of them new positions) and 364 sold (128 sold out completely). Among well known investors, 2 added and 2 cut. Our fund sentiment for ACM is neutral.
What is ACM's institutional put/call ratio?
Funds reported $1.5M of ACM puts against $935K of calls, a put/call ratio of 1.59 (0.61 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this ACM ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.