Dimensional Fund Advisors Lp ownership in ABM / ABM Industries Incorporated

ABM Industries Incorporated

US ˙ NYSE ˙ US0009571003

Security	ABM / ABM Industries Incorporated
Institution	Dimensional Fund Advisors Lp
Latest Disclosed Ownership	4,020,125 shares
Ownership	6.50%

2025-10-09 - Dimensional Fund Advisors Lp has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,020,125 shares of ABM Industries Incorporated (US:ABM). This represents 6.5 percent ownership of the company. In their previous filing dated 2024-02-09 , Dimensional Fund Advisors Lp had reported owning 4,687,812 shares, indicating a decrease of -14.24 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2025-10-09	2025-10-09	13G/A	4,687,812	4,020,125	-14.24	6.50	-13.33
2024-02-09	2024-02-09	13G/A	4,507,066	4,687,812	4.01	7.50	8.70
2023-02-10	2023-02-10	13G/A	4,093,973	4,507,066	10.09	6.90	13.11
2022-02-08	2022-02-08	13G/A	4,242,856	4,093,973	-3.51	6.10	-4.69
2021-02-12	2021-02-12	13G/A	4,289,424	4,242,856	-1.09	6.40	-0.62
2020-02-12	2020-02-12	13G/A	4,308,210	4,289,424	-0.44	6.44	-1.23
2019-02-08	2019-02-08	13G	2,580,190	4,308,210	66.97	6.52	65.48
2018-02-09	2018-02-09	13G/A	2,831,516	2,580,190	-8.88	3.94	-22.75
2017-02-09	2017-02-09	13G	3,042,772	2,831,516	-6.94	5.10	-6.08
2016-02-09	2016-02-09	13G		3,042,772		5.43

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-07	2026-03-31	13F	ABM INDS	COM	000957100	4,076,047	24,213	0.60	157,007	-8.39	0.0070
2026-02-12	2025-12-31	13F	ABM INDS	COM	000957100	4,051,834	31,709	0.79	171,394	-7.56	0.0360
2025-11-12	2025-09-30	13F	ABM INDS	COM	000957100	4,020,125	-16,376	-0.41	185,406	-2.71	0.0398
2025-08-12	2025-06-30	13F	ABM INDS	COM	000957100	4,036,501	-205,422	-4.84	190,560	-5.14	0.0441
2025-05-13	2025-03-31	13F	ABM INDS	COM	000957100	4,241,923	-190,510	-4.30	200,895	-11.44	0.0499
2025-02-13	2024-12-31	13F	ABM INDS	COM	000957100	4,432,433	-179,596	-3.89	226,853	-6.77	0.0545
2024-11-07	2024-09-30	13F	ABM INDS	COM	000957100	4,612,029	-48,872	-1.05	243,324	3.23	0.0590
2024-08-09	2024-06-30	13F	ABM INDS	COM	000957100	4,660,901	-17,551	-0.38	235,700	12.91	0.0616
2024-05-10	2024-03-31	13F	ABM INDS	COM	000957100	4,678,452	-9,024	-0.19	208,753	-0.66	0.0565
2024-02-07	2023-12-31	13F	ABM INDS	COM	000957100	4,687,476	66,334	1.44	210,141	13.66	0.0614
2023-11-09	2023-09-30	13F	ABM INDS	COM	000957100	4,621,142	29,740	0.65	184,893	-5.58	0.0606
2023-08-09	2023-06-30	13F	ABM INDS	COM	000957100	4,591,402	27,901	0.61	195,824	-4.51	0.0624
2023-05-12	2023-03-31	13F	ABM INDS	COM	000957100	4,563,501	56,435	1.25	205,082	102,441.00	0.0691
2023-02-09	2022-12-31	13F	ABM INDS	COM	000957100	4,507,066	161,827	3.72	200	-99.88	0.0592
2022-11-10	2022-09-30	13F	ABM INDS	COM	000957100	4,345,239	89,431	2.10	166,121	-10.10	0.0638
2022-08-12	2022-06-30	13F	ABM INDS	COM	000957100	4,255,808	82,664	1.98	184,783	-3.82	0.0663
2022-05-13	2022-03-31	13F	ABM INDS	COM	000957100	4,173,144	79,437	1.94	192,131	14.89	0.0592
2022-02-09	2021-12-31	13F	ABM INDS	COM	000957100	4,093,707	-53,171	-1.28	167,226	-10.41	0.0506
2021-11-12	2021-09-30	13F	ABM INDS	COM	000957100	4,146,878	64,669	1.58	186,654	3.10	0.0601
2021-08-12	2021-06-30	13F	ABM INDS	COM	000957100	4,082,209	-115,485	-2.75	181,045	-15.45	0.0573
2021-05-14	2021-03-31	13F	ABM INDS	COM	000957100	4,197,694	-45,162	-1.06	214,125	33.37	0.0708
2021-03-08	2020-12-31	13F/A-2	ABM INDS	COM	000957100	4,242,856	-79,185	-1.83	160,550	1.33	0.0580
2021-02-11	2020-12-31	13F	ABM INDS	COM	000957100	4,242,856	-79,185		160,550		57,982.1263
2020-11-12	2020-09-30	13F	ABM INDS	COM	000957100	4,322,041	-45,844	-1.05	158,446	-0.07	0.0672
2020-08-13	2020-06-30	13F	ABM INDS	COM	000957100	4,367,885	91,559	2.14	158,555	52.21	0.0697
2020-05-14	2020-03-31	13F	ABM INDS	COM	000957100	4,276,326	-13,098	-0.31	104,170	-35.60	0.0543
2020-02-14	2019-12-31	13F	ABM INDS	COM	000957100	4,289,424	-40,297	-0.93	161,757	2.86	0.0590
2019-11-12	2019-09-30	13F	ABM INDS	COM	000957100	4,329,721	9,589	0.22	157,256	-9.00	0.0611
2019-08-13	2019-06-30	13F	ABM INDS	COM	000957100	4,320,132	-61,798	-1.41	172,804	8.49	0.0671
2019-08-12	2019-03-31	13F/A-2	ABM INDS	COM	000957100	4,381,930	73,720	1.71	159,282	15.14	0.0634
2019-05-10	2019-03-31	13F	ABM INDS	COM	000957100	4,381,930	73,720		159,282
2019-02-26	2018-12-31	13F/A-1	ABM INDS	COM	000957100	4,308,210	314,837	7.88	138,334	7.41	0.0627
2019-02-13	2018-12-31	13F	ABM INDS	COM	000957100	4,308,210	314,837		138,334
2018-11-13	2018-09-30	13F	ABM INDS	COM	000957100	3,993,373	537,375	15.55	128,786	27.71	0.0490
2018-08-10	2018-06-30	13F	ABM INDS	COM	000957100	3,455,998	702,579	25.52	100,846	9.40	0.0402
2018-05-11	2018-03-31	13F	ABM INDS	COM	000957100	2,753,419	173,229	6.71	92,184	-5.28	0.0384
2018-02-12	2017-12-31	13F	ABM INDS	COM	000957100	2,580,190	200,136	8.41	97,325	-1.96	0.0403
2017-11-13	2017-09-30	13F	ABM INDS	COM	000957100	2,380,054	10,556	0.45	99,272	0.90	0.0434
2017-08-11	2017-06-30	13F	ABM INDS	COM	000957100	2,369,498	-78,691	-3.21	98,382	-7.83	0.0454
2017-05-12	2017-03-31	13F	ABM INDS	COM	000957100	2,448,189	-383,327	-13.54	106,741	-7.69	0.0510
2017-02-09	2016-12-31	13F	ABM INDS	COM	000957100	2,831,516	-55,372	-1.92	115,639	0.90	0.0578
2016-11-10	2016-09-30	13F	ABM INDS	COM	000957100	2,886,888	-131,255	-4.35	114,609	4.10	0.0619
2016-08-09	2016-06-30	13F	ABM INDS	COM	000957100	3,018,143	58,720	1.98	110,100	15.14	0.0634
2016-05-13	2016-03-31	13F	ABM INDS	COM	000957100	2,959,423	-83,349	-2.74	95,619	10.38	0.0572
2016-02-10	2015-12-31	13F	ABM INDS	COM	000957100	3,042,772	327,118	12.05	86,629	16.80	0.0540
2015-11-13	2015-09-30	13F	ABM INDS	COM	000957100	2,715,654	323,278	13.51	74,166	-5.69	0.0487
2015-08-14	2015-06-30	13F	ABM INDS	COM	000957100	2,392,376	234,057	10.84	78,638	14.36	0.0482
2015-05-14	2015-03-31	13F	ABM INDS	COM	000957100	2,158,319	196,659	10.03	68,765	22.35	0.0434
2015-02-06	2014-12-31	13F	ABM INDS	COM	000957100	1,961,660	151,144	8.35	56,202	20.83	0.0369
2014-11-13	2014-09-30	13F	ABM INDS	COM	000957100	1,810,516	96,420	5.63	46,513	0.58	0.0330
2014-08-08	2014-06-30	13F	ABM INDS	COM	000957100	1,714,096	115,209	7.21	46,246	0.64	0.0321
2014-05-14	2014-03-31	13F	ABM INDS	COM	000957100	1,598,887	72,938	4.78	45,951	5.33	0.0343
2014-02-12	2013-12-31	13F	ABM INDS	COM	000957100	1,525,949	73,678	5.07	43,627	12.85	0.0340
2013-11-13	2013-09-30	13F	ABM INDS	COM	000957100	1,452,271	61,238	4.40	38,659	13.39	0.0335
2013-08-15	2013-06-30	13F	ABM INDS	COM	000957100	1,391,033	1,391,033		34,095		0.0321

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.