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ABM · Abm Industries Inc /De/

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$47.10 -0.12 (-0.25%) At close · Aug 20
Market Cap
$2.76B
Shares
58.58M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 305
Total Value: $2,576,371,733
Total Shares: 58,236,255

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 305 13F filers · Δ vs Mar 31, 2026
Top Holder
16.0%
Sep 2023 → Jun 2026 · range 15.2% – 18.3%
+0.3 pts
Top 5
40.4%
Sep 2023 → Jun 2026 · range 40.4% – 51.0%
−0.1 pts
Top 10
57.6%
Sep 2023 → Jun 2026 · range 56.8% – 63.2%
+0.7 pts
HHI
507
Sep 2023 → Jun 2026 · range 505 – 716
Broadly held+2

Quarterly Activity

vs Mar 31, 2026
New
59
Increased
134
Decreased
78
Sold Out
45
Unchanged
34
Holder count: +14
Institutional value: +18.1%
Shares held: +2.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 310
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 771497 CUSIP 000957100 13F (30d) 299 filings 270 filers Visit website Investor relations