Westpac Banking Corp reports 42.98% decrease in ownership of BAH / Booz Allen Hamilton Holding Corporation

부즈 앨런 해밀턴 홀딩 코퍼레이션

US ˙ NYSE ˙ US0995021062

Security	BAH / Booz Allen Hamilton Holding Corporation
Institution	Westpac Banking Corp
Latest Disclosed Ownership	959 shares
Latest Disclosed Value	$ 74,831

On May 11, 2026 - Westpac Banking Corp filed a 13F-HR form disclosing ownership of 959 shares of Booz Allen Hamilton Holding Corporation (US:BAH) valued at $74,831 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 1,682 shares of Booz Allen Hamilton Holding Corporation. This represents a change in shares of -42.98% during the quarter. The current value of the position is $76,730 USD.

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 (%)
2026-05-11	2026-03-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	959	-723	-42.98	75	-47.52	0.0026
2026-02-10	2025-12-31	13F	BOOZ ALLEN HAMILTON HOLDING CORP USD 0.01	CL A	099502106	1,682	-16,065	-90.52	142	-92.05	0.0090
2025-11-14	2025-09-30	13F/A-1	BOOZ ALLEN HAMILTON HOLDING CORP USD 0.01	CL A	099502106	17,747	-4,734	-21.06	1,774	-24.23	0.1099
2025-11-12	2025-09-30	13F	BOOZ ALLEN HAMILTON HOLDING CORP USD 0.01	CL A	099502106	17,747	-4,734		1,774		0.0445
2025-08-11	2025-06-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	22,481	21,574	2,378.61	2,341	2,389.36	0.1565
2025-05-13	2025-03-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	907	907		95		0.0070
2023-08-10	2023-06-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	0	-11,437	-100.00	0	-100.00
2023-05-04	2023-03-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	11,437	0	0.00	1,060	-11.30	0.0143
2023-02-06	2022-12-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	11,437	0	0.00	1,195	13.16	0.0177
2022-11-08	2022-09-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	11,437	0	0.00	1,056	2.23	0.0161
2022-08-10	2022-06-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	11,437	-1,526	-11.77	1,033	-9.23	0.0135
2022-05-11	2022-03-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	12,963	-1,711	-11.66	1,139	-8.52	0.0131
2022-02-08	2021-12-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	14,674	447	3.14	1,244	10.28	0.0129
2021-10-27	2021-09-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	14,227	-953	-6.28	1,129	-12.76	0.0121
2021-08-11	2021-06-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	15,180	2,277	17.65	1,293	24.45	0.0130
2021-05-13	2021-03-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	12,903	-7,596	-37.06	1,039	-41.86	0.0115
2021-02-11	2020-12-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	20,499	5,498	36.65	1,787	43.65	0.0203
2020-11-10	2020-09-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	15,001	-1,262	-7.76	1,245	-1.66	0.0169
2020-08-12	2020-06-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	16,263	0	0.00	1,265	13.35	0.0189
2020-05-14	2020-03-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	16,263	4,826	42.20	1,116	37.27	0.0192
2020-02-11	2019-12-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	11,437	11,437		814		0.0105
2017-08-09	2017-06-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	0	-17,821	-100.00	0	-100.00
2017-05-18	2017-03-31	13F/A-1	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	17,821	-35	-0.20	631	-2.17	0.0051
2017-05-11	2017-03-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	17,821			631
2017-02-09	2016-12-31	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	17,856	2,951	19.80	644	36.73	0.0061
2016-11-10	2016-09-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	14,905	2,178	17.11	471	24.93	0.0051
2016-08-10	2016-06-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	12,727	12,727	-12.23	377	94.33	0.0041
2013-11-12	2013-09-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	0	-14,500	-100.00	0	-100.00
2013-08-14	2013-06-30	13F	BOOZ ALLEN HAMILTON HLDG COR	CL A	099502106	14,500	14,500		195		0.0030

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.