Millrose Properties, Inc.
MX ˙ BMV
SecurityMX:MRP / Millrose Properties, Inc.
InstitutionPeak6 Llc
Latest Disclosed Ownership16,750 shares
Latest Disclosed Value $ 500,322
Peak6 Llc ownership in MRP / Millrose Properties, Inc.

On March 12, 2026 - Peak6 Llc filed a 13F-HR/A form disclosing ownership of 16,750 shares of Millrose Properties, Inc. (MX:MRP) valued at $500,322 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 30, 2026 disclosing 5,325 shares of Millrose Properties, Inc.. This represents a change in shares of 214.55% during the quarter.

Peak6 Llc has a history of taking positions in derivatives of the underlying security (MRP) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 17,450 of underlying shares valued at $521,232 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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:MRP / Millrose Properties, 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)
2026-03-12 2025-12-31 13F/A-1 MILLROSE PPTYS COM CL A 601137102 16,750 11,425 214.55 500 180.90 0.0009
2026-02-13 2025-12-31 13F MILLROSE PPTYS COM CL A 601137102 16,750 11,425 500
2026-03-30 2025-09-30 13F/A-1 MILLROSE PPTYS COM CL A 601137102 5,325 3,116 141.06 179 187.10 0.0003
2025-11-14 2025-09-30 13F MILLROSE PPTYS COM CL A 601137102 5,325 3,116 179 0.0003
2026-03-26 2025-06-30 13F/A-2 MILLROSE PPTYS COM CL A 601137102 2,209 2,209 63 0.0001
2025-11-13 2025-06-30 13F/A-1 MILLROSE PPTYS COM CL A 601137102 2,209 2,209 63 0.0001
2025-08-14 2025-06-30 13F MILLROSE PPTYS COM CL A 601137102 2,209 2,209 63 0.0001
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
(%)
2026-03-12 2025-12-31 13F/A MILLROSE PPTYS COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F MILLROSE PPTYS COM CL A Call 0 0 n/a n/a n/a
2026-03-30 2025-09-30 13F/A MILLROSE PPTYS COM CL A Call 16,400 551 n/a n/a n/a
2025-11-14 2025-09-30 13F MILLROSE PPTYS COM CL A Call 16,400 551 n/a n/a n/a
2025-11-13 2025-06-30 13F/A MILLROSE PPTYS COM CL A Call 0 0 n/a n/a n/a
2026-03-26 2025-06-30 13F/A MILLROSE PPTYS COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F MILLROSE PPTYS COM CL A Call 0 0 n/a n/a n/a
2025-05-14 2025-03-31 13F MILLROSE PPTYS COM CL A Call 5,400 143 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
(%)
2026-03-12 2025-12-31 13F/A MILLROSE PPTYS COM CL A Put 17,450 -34.77 521 -42.05 n/a n/a n/a
2026-02-13 2025-12-31 13F MILLROSE PPTYS COM CL A Put 17,450 521 n/a n/a n/a
2026-03-30 2025-09-30 13F/A MILLROSE PPTYS COM CL A Put 26,750 445.92 899 546.76 n/a n/a n/a
2025-11-14 2025-09-30 13F MILLROSE PPTYS COM CL A Put 26,750 899 n/a n/a n/a
2025-11-13 2025-06-30 13F/A MILLROSE PPTYS COM CL A Put 4,900 140 n/a n/a n/a
2026-03-26 2025-06-30 13F/A MILLROSE PPTYS COM CL A Put 4,900 -27.94 140 -22.78 n/a n/a n/a
2025-08-14 2025-06-30 13F MILLROSE PPTYS COM CL A Put 4,900 140 n/a n/a n/a
2025-05-14 2025-03-31 13F MILLROSE PPTYS COM CL A Put 6,800 180 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.