SentinelOne, Inc.
US ˙ NYSE ˙ US81730H1095

SecurityS / SentinelOne, Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership13,208 shares
Latest Disclosed Value $ 170,119
Brown Advisory Inc reports 70.79% decrease in ownership of S / SentinelOne, Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 13,208 shares of SentinelOne, Inc. (US:S) valued at $170,119 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 45,212 shares of SentinelOne, Inc.. This represents a change in shares of -70.79% during the quarter. The current value of the position is $215,290 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 Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F SENTINELONE CL A 81730H109 13,208 -32,004 -70.79 170 -74.93 0.0003
2026-02-13 2025-12-31 13F SENTINELONE CL A 81730H109 45,212 -83,086 -64.76 678 -69.99 0.0009
2025-11-14 2025-09-30 13F SENTINELONE CL A 81730H109 128,298 -51 -0.04 2,259 -3.71 0.0029
2025-08-13 2025-06-30 13F SENTINELONE CL A 81730H109 128,349 -225 -0.17 2,346 0.39 0.0031
2025-04-30 2025-03-31 13F SENTINELONE CL A 81730H109 128,574 -15,054 -10.48 2,337 -26.69 0.0033
2025-02-14 2024-12-31 13F SENTINELONE CL A 81730H109 143,628 14,052 10.84 3,189 2.87 0.0040
2024-11-13 2024-09-30 13F SENTINELONE CL A 81730H109 129,576 -138 -0.11 3,099 13.52 0.0039
2024-08-14 2024-06-30 13F SENTINELONE CL A 81730H109 129,714 1,131 0.88 2,730 -8.91 0.0036
2024-04-24 2024-03-31 13F SENTINELONE CL A 81730H109 128,583 47 0.04 2,997 -15.03 0.0040
2024-02-08 2023-12-31 13F SENTINELONE CL A 81730H109 128,536 0 0.00 3,527 62.76 0.0050
2023-10-25 2023-09-30 13F SENTINELONE CL A 81730H109 128,536 0 0.00 2,167 11.70 0.0036
2023-07-31 2023-06-30 13F SENTINELONE CL A 81730H109 128,536 -30,747 -19.30 1,941 -25.53 0.0030
2023-05-08 2023-03-31 13F SENTINELONE CL A 81730H109 159,283 -4,357 -2.66 2,606 9.13 0.0044
2023-02-13 2022-12-31 13F SENTINELONE CL A 81730H109 163,640 -113,811 -41.02 2,388 -66.34 0.0044
2022-11-14 2022-09-30 13F SENTINELONE CL A 81730H109 277,451 -41,227 -12.94 7,091 -4.64 0.0138
2022-11-14 2022-06-30 13F/A-2 SENTINELONE CL A 81730H109 318,678 30,363 10.53 7,436 -33.43 0.0140
2022-09-13 2022-06-30 13F/A-1 SENTINELONE CL A 81730H109 312,088 -4,272 7,281 0.0126
2022-08-02 2022-06-30 13F SENTINELONE CL A 81730H109 312,088 27,264 7,281 0.0048
2022-11-14 2022-03-31 13F/A-2 SENTINELONE CL A 81730H109 288,315 206,283 251.47 11,171 169.70 0.0166
2022-09-13 2022-03-31 13F/A-1 SENTINELONE CL A 81730H109 316,360 234,328 12,257 0.0172
2022-05-09 2022-03-31 13F SENTINELONE CL A 81730H109 284,824 202,792 11,035 0.0150
2022-01-27 2021-12-31 13F SENTINELONE CL A 81730H109 82,032 17,546 27.21 4,142 19.88 0.0051
2021-11-12 2021-09-30 13F SENTINELONE CL A 81730H109 64,486 -196,181 -75.26 3,455 -68.81 0.0051
2021-07-29 2021-06-30 13F SENTINELONE CL A 81730H109 260,667 260,667 11,078 0.0167
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.