SentinelOne, Inc.
MX ˙ BMV ˙ US81730H1095
SecurityMX:S1 / SentinelOne, Inc.
InstitutionPeak6 Llc
Latest Disclosed Ownership648,589 shares
Latest Disclosed Value $ 8,353,826
Peak6 Llc ownership in S1 / SentinelOne, Inc.

On May 14, 2026 - Peak6 Llc filed a 13F-HR form disclosing ownership of 648,589 shares of SentinelOne, Inc. (MX:S1) valued at $8,353,826 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 12, 2026 disclosing 93,637 shares of SentinelOne, Inc.. This represents a change in shares of 592.66% during the quarter.

Peak6 Llc has a history of taking positions in derivatives of the underlying security (S1) in the form of stock options. The firm currently holds call options representing 576,400 of underlying shares valued at $7,424,032 USD and put options representing 411,600 of underlying shares valued at $5,301,408 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:S1 / SentinelOne, Inc. Historical Put/Call Ratio
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 SENTINELONE CL A 81730H109 648,589 554,952 592.66 8,354 494.94 0.0196
2026-03-12 2025-12-31 13F/A-1 SENTINELONE CL A 81730H109 93,637 17,687 23.29 1,405 5.01 0.0026
2026-02-13 2025-12-31 13F SENTINELONE CL A 81730H109 93,637 17,687 1,405 0.0026
2026-03-30 2025-09-30 13F/A-1 SENTINELONE CL A 81730H109 75,950 43,675 135.32 1,337 126.99 0.0020
2025-11-14 2025-09-30 13F SENTINELONE CL A 81730H109 75,950 43,675 1,337 0.0020
2026-03-26 2025-06-30 13F/A-2 SENTINELONEINC CL A 81730H109 32,275 -46,050 -58.79 590 -58.61 0.0011
2025-11-13 2025-06-30 13F/A-1 SENTINELONEINC CL A 81730H109 32,275 -46,050 590 0.0011
2025-08-14 2025-06-30 13F SENTINELONEINC CL A 81730H109 32,275 -46,050 590 0.0011
2025-05-14 2025-03-31 13F SENTINELONE CL A 81730H109 78,325 8,980 12.95 1,424 -7.54 0.0032
2025-02-13 2024-12-31 13F SENTINELONE CL A 81730H109 69,345 69,345 1,539 0.0032
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F SENTINELONE CL A Call 576,400 28.83 7,424 10.62 n/a n/a n/a
2026-03-12 2025-12-31 13F/A SENTINELONE CL A Call 447,400 -1.54 6,711 -16.12 n/a n/a n/a
2026-02-13 2025-12-31 13F SENTINELONE CL A Call 447,400 6,711 n/a n/a n/a
2026-03-30 2025-09-30 13F/A SENTINELONE CL A Call 454,400 16.30 8,002 12.04 n/a n/a n/a
2025-11-14 2025-09-30 13F SENTINELONE CL A Call 454,400 8,002 n/a n/a n/a
2025-11-13 2025-06-30 13F/A SENTINELONEINC CL A Call 390,700 7,142 n/a n/a n/a
2026-03-26 2025-06-30 13F/A SENTINELONEINC CL A Call 390,700 169.08 7,142 170.59 n/a n/a n/a
2025-08-14 2025-06-30 13F SENTINELONEINC CL A Call 390,700 7,142 n/a n/a n/a
2025-05-14 2025-03-31 13F SENTINELONE CL A Call 145,200 -82.53 2,640 -85.70 n/a n/a n/a
2025-02-13 2024-12-31 13F SENTINELONE CL A Call 831,100 18,450 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F SENTINELONE CL A Put 411,600 -39.65 5,301 -48.18 n/a n/a n/a
2026-03-12 2025-12-31 13F/A SENTINELONE CL A Put 682,000 -3.00 10,230 -17.37 n/a n/a n/a
2026-02-13 2025-12-31 13F SENTINELONE CL A Put 682,000 10,230 n/a n/a n/a
2026-03-30 2025-09-30 13F/A SENTINELONE CL A Put 703,100 3.32 12,382 -0.47 n/a n/a n/a
2025-11-14 2025-09-30 13F SENTINELONE CL A Put 703,100 12,382 n/a n/a n/a
2025-11-13 2025-06-30 13F/A SENTINELONEINC CL A Put 680,500 12,440 n/a n/a n/a
2026-03-26 2025-06-30 13F/A SENTINELONEINC CL A Put 680,500 31.83 12,440 32.56 n/a n/a n/a
2025-08-14 2025-06-30 13F SENTINELONEINC CL A Put 680,500 12,440 n/a n/a n/a
2025-05-14 2025-03-31 13F SENTINELONE CL A Put 516,200 14.00 9,385 -6.65 n/a n/a n/a
2025-02-13 2024-12-31 13F SENTINELONE CL A Put 452,800 10,052 n/a n/a n/a
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.