Booz Allen Hamilton Holding Corporation
MX ˙ BMV ˙ US0995021062
SecurityMX:BAH / Booz Allen Hamilton Holding Corporation
InstitutionGrantham, Mayo, Van Otterloo & Co. LLC
Latest Disclosed Ownership258,717 shares
Latest Disclosed Value $ 20,187,688
Grantham, Mayo, Van Otterloo & Co. LLC reports 0.29% increase in ownership of BAH / Booz Allen Hamilton Holding Corporation

On May 14, 2026 - Grantham, Mayo, Van Otterloo & Co. LLC filed a 13F-HR form disclosing ownership of 258,717 shares of Booz Allen Hamilton Holding Corporation (MX:BAH) valued at $20,187,688 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 257,973 shares of Booz Allen Hamilton Holding Corporation. This represents a change in shares of 0.29% during the quarter.

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 Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 258,717 744 0.29 20,188 -7.24 0.0516
2026-02-17 2025-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 257,973 -103,778 -28.69 21,763 -39.81 0.0556
2025-11-13 2025-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 361,751 3,304 0.92 36,157 -3.13 0.1020
2025-08-13 2025-06-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 358,447 358,447 37,325 0.1123
2025-05-14 2025-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 0 -3,278 -100.00 0 -100.00
2025-02-13 2024-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 3,278 -14,352 -81.41 422 -85.33 0.0014
2024-11-13 2024-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 17,630 1,133 6.87 2,869 13.04 0.0090
2024-08-13 2024-06-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 16,497 7,569 84.78 2,539 91.55 0.0086
2024-05-14 2024-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 8,928 8,928 1,325 0.0048
2023-11-13 2023-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 0 -108,260 -100.00 0 -100.00
2023-08-14 2023-06-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 108,260 0 0.00 12,082 20.40 0.0559
2023-05-12 2023-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 108,260 39,940 58.46 10,035 40.53 0.0510
2023-02-13 2022-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 68,320 934 1.39 7,141 14.74 0.0380
2022-11-10 2022-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 67,386 67,386 6,223 0.0359
2022-02-11 2021-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 0 -9,400 -100.00 0 -100.00
2021-11-12 2021-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 9,400 -73,100 -88.61 746 -89.38 0.0037
2021-08-12 2021-06-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 82,500 -2,977 -3.48 7,027 2.09 0.0351
2021-05-13 2021-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL 099502106 85,477 72,000 534.24 6,883 485.79 0.0376
2021-02-12 2020-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 13,477 -1,700 -11.20 1,175 -6.67 0.0072
2020-11-13 2020-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 15,177 -2,979 -16.41 1,259 -10.84 0.0090
2020-08-13 2020-06-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 18,156 -8,373 -31.56 1,412 -22.46 0.0105
2020-05-14 2020-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 26,529 -1,200 -4.33 1,821 -7.66 0.0152
2020-02-13 2019-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 27,729 -5,971 -17.72 1,972 -17.59 0.0132
2019-11-13 2019-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 33,700 -21,600 -39.06 2,393 -34.64 0.0166
2019-08-13 2019-06-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 55,300 -3,100 -5.31 3,661 7.84 0.0258
2019-05-14 2019-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 58,400 1,400 2.46 3,395 32.15 0.0244
2019-02-13 2018-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 57,000 2,200 4.01 2,569 -5.55 0.0205
2018-11-14 2018-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 54,800 54,800 2,720 0.0184
2017-05-15 2017-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 0 -32,695 -100.00 0 -100.00
2017-02-13 2016-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 32,695 -39,039 -54.42 1,179 -48.02 0.0064
2016-11-10 2016-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 71,734 -594,373 -89.23 2,268 -88.51 0.0107
2016-08-12 2016-06-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 666,107 114,120 20.67 19,743 18.12 0.0810
2016-05-13 2016-03-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 551,987 403,087 270.71 16,714 263.82 0.0624
2016-02-12 2015-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 148,900 -19,900 -11.79 4,594 3.84 0.0165
2015-11-13 2015-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 168,800 142,067 531.43 4,424 764.06 0.0154
2014-02-13 2013-12-31 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 26,733 12,893 93.16 512 91.76 0.0012
2013-11-14 2013-09-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 13,840 -5,376 -27.98 267 -20.06 0.0007
2013-08-13 2013-06-30 13F BOOZ ALLEN HAMILTON HLDG COR CL A 099502106 19,216 19,216 334 0.0009
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.