Marcus & Millichap, Inc.
US ˙ NYSE ˙ US5663241090

SecurityMMI / Marcus & Millichap, Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership32,072 shares
Latest Disclosed Value $ 852,795
Citadel Advisors Llc ownership in MMI / Marcus & Millichap, Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 32,072 shares of Marcus & Millichap, Inc. (US:MMI) valued at $852,794 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 361,686 shares of Marcus & Millichap, Inc.. This represents a change in shares of -91.13% during the quarter. The current value of the position is $965,367 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (MMI) 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 0 of underlying shares valued at $0 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.

MMI / Marcus & Millichap, 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)
2026-05-15 2026-03-31 13F MARCUS & MILLICHAP COM 566324109 32,072 -329,614 -91.13 853 -91.37 0.0001
2026-02-17 2025-12-31 13F MARCUS & MILLICHAP COM 566324109 361,686 308,960 585.97 9,870 538.01 0.0015
2025-11-14 2025-09-30 13F MARCUS & MILLICHAP COM 566324109 52,726 -10,459 -16.55 1,548 -20.26 0.0002
2025-08-14 2025-06-30 13F MARCUS & MILLICHAP COM 566324109 63,185 -59,557 -48.52 1,940 -54.12 0.0003
2025-05-15 2025-03-31 13F MARCUS & MILLICHAP COM 566324109 122,742 -6,919 -5.34 4,228 -14.76 0.0008
2025-02-14 2024-12-31 13F MARCUS & MILLICHAP COM 566324109 129,661 20,133 18.38 4,961 14.29 0.0009
2024-11-14 2024-09-30 13F MARCUS & MILLICHAP COM 566324109 109,528 37,395 51.84 4,341 90.94 0.0008
2024-08-14 2024-06-30 13F MARCUS & MILLICHAP COM 566324109 72,133 50,700 236.55 2,274 210.52 0.0005
2024-05-15 2024-03-31 13F MARCUS & MILLICHAP COM 566324109 21,433 160 0.75 732 -21.21 0.0001
2024-02-14 2023-12-31 13F MARCUS & MILLICHAP COM 566324109 21,273 -3,970 -15.73 929 25.54 0.0002
2023-11-14 2023-09-30 13F MARCUS & MILLICHAP COM 566324109 25,243 -6,703 -20.98 741 -26.44 0.0002
2023-08-14 2023-06-30 13F MARCUS & MILLICHAP COM 566324109 31,946 -24,963 -43.86 1,007 -44.94 0.0002
2023-05-15 2023-03-31 13F MARCUS & MILLICHAP COM 566324109 56,909 47,793 524.28 1,827 481.85 0.0004
2023-02-14 2022-12-31 13F MARCUS & MILLICHAP COM 566324109 9,116 -5,783 -38.81 314 -35.66 0.0001
2022-11-14 2022-09-30 13F MARCUS & MILLICHAP COM 566324109 14,899 14,899 488 0.0001
2022-08-15 2022-06-30 13F MARCUS & MILLICHAP COM 566324109 0 -25,901 -100.00 0 -100.00
2022-05-16 2022-03-31 13F MARCUS & MILLICHAP COM 566324109 25,901 10,580 69.06 1,364 73.10 0.0003
2022-02-14 2021-12-31 13F MARCUS & MILLICHAP COM 566324109 15,321 -10,356 -40.33 788 -24.45 0.0002
2021-11-15 2021-09-30 13F MARCUS & MILLICHAP Cmn 566324109 25,677 -51,804 -66.86 1,043 -65.37 0.0002
2021-08-16 2021-06-30 13F MARCUS & MILLICHAP COM 566324109 77,481 -29,592 -27.64 3,012 -16.52 0.0007
2021-05-21 2021-03-31 13F/A-1 MARCUS & MILLICHAP COM 566324109 107,073 37,731 54.41 3,608 39.74 0.0009
2021-05-17 2021-03-31 13F MARCUS & MILLICHAP COM 566324109 107,073 37,731 3,608 0.0009
2021-02-16 2020-12-31 13F MARCUS & MILLICHAP COM 566324109 69,342 69,342 2,582 0.0007
2020-11-16 2020-09-30 13F MARCUS & MILLICHAP Cmn 566324109 0 -34,149 -100.00 0 -100.00
2020-08-14 2020-06-30 13F MARCUS & MILLICHAP Cmn 566324109 34,149 7,638 28.81 986 37.13 0.0004
2020-05-15 2020-03-31 13F MARCUS & MILLICHAP Cmn 566324109 26,511 20,624 350.33 719 228.31 0.0003
2020-02-14 2019-12-31 13F MARCUS & MILLICHAP Cmn 566324109 5,887 -2,366 -28.67 219 -25.26 0.0001
2019-11-14 2019-09-30 13F MARCUS & MILLICHAP Cmn 566324109 8,253 -4,726 -36.41 293 -26.75 0.0001
2019-08-14 2019-06-30 13F MARCUS & MILLICHAP Cmn 566324109 12,979 12,979 400 0.0002
2019-02-14 2018-12-31 13F MARCUS & MILLICHAP Cmn 566324109 0 -97,707 -100.00 0 -100.00
2018-11-13 2018-09-30 13F MARCUS & MILLICHAP Cmn 566324109 97,707 76,963 371.01 3,391 319.16 0.0015
2018-08-14 2018-06-30 13F/A-1 MARCUS & MILLICHAP Cmn 566324109 20,744 -47,331 -69.53 809 -67.05 0.0004
2018-08-10 2018-06-30 13F MARCUS & MILLICHAP Cmn 566324109 20,744 -47,331 809
2018-05-14 2018-03-31 13F/A-1 MARCUS & MILLICHAP Cmn 566324109 68,075 -26,970 -28.38 2,455 -20.78 0.0014
2018-05-11 2018-03-31 13F MARCUS & MILLICHAP Cmn 566324109 68,075 -26,970 2,455
2018-02-09 2017-12-31 13F MARCUS & MILLICHAP Cmn 566324109 95,045 11,599 13.90 3,099 37.61 0.0019
2017-11-09 2017-09-30 13F MARCUS & MILLICHAP Cmn 566324109 83,446 22,020 35.85 2,252 39.10 0.0017
2017-08-11 2017-06-30 13F MARCUS & MILLICHAP Cmn 566324109 61,426 31,269 103.69 1,619 118.49 0.0014
2017-05-12 2017-03-31 13F MARCUS & MILLICHAP Cmn 566324109 30,157 30,157 741 0.0007
2016-11-10 2016-09-30 13F MARCUS & MILLICHAP Cmn 566324109 0 -14,459 -100.00 0 -100.00
2017-01-31 2016-06-30 13F/A-1 MARCUS & MILLICHAP Cmn 566324109 14,459 -30,132 -67.57 367 -67.58 0.0004
2016-08-12 2016-06-30 13F MARCUS & MILLICHAP Cmn 566324109 14,459 367
2017-01-31 2016-03-31 13F/A-1 MARCUS & MILLICHAP Cmn 566324109 44,591 44,591 -33.52 1,132 -63.42 0.0014
2016-05-13 2016-03-31 13F MARCUS & MILLICHAP Cmn 566324109 44,591 1,132
2015-11-16 2015-09-30 13F MARCUS & MILLICHAP Cmn 566324109 0 -67,072 -100.00 0 -100.00
2015-08-14 2015-06-30 13F MARCUS & MILLICHAP Cmn 566324109 67,072 -37,844 -36.07 3,095 -21.29 0.0027
2015-05-15 2015-03-31 13F MARCUS & MILLICHAP Cmn 566324109 104,916 -26,167 -19.96 3,932 -9.78 0.0044
2015-02-17 2014-12-31 13F MARCUS & MILLICHAP Cmn 566324109 131,083 -564 -0.43 4,358 9.39 0.0053
2014-11-14 2014-09-30 13F MARCUS & MILLICHAP Cmn 566324109 131,647 704 0.54 3,984 19.28 0.0050
2014-08-14 2014-06-30 13F MARCUS & MILLICHAP Cmn 566324109 130,943 -168,718 -56.30 3,340 -37.52 0.0045
2014-05-15 2014-03-31 13F MARCUS & MILLICHAP Cmn 566324109 299,661 -691,208 -69.76 5,346 -63.79 0.0074
2014-02-14 2013-12-31 13F MARCUS & MILLICHAP Cmn 566324109 990,869 990,869 14,764 0.0192
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
(%)
2025-08-14 2025-06-30 13F MARCUS & MILLICHAP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F MARCUS & MILLICHAP COM Call 100 -90.91 3 -92.86 n/a n/a n/a
2025-02-14 2024-12-31 13F MARCUS & MILLICHAP COM Call 1,100 -8.33 42 -10.64 n/a n/a n/a
2024-11-14 2024-09-30 13F MARCUS & MILLICHAP COM Call 1,200 -45.45 48 -31.88 n/a n/a n/a
2024-08-14 2024-06-30 13F MARCUS & MILLICHAP COM Call 2,200 -42.11 69 -46.51 n/a n/a n/a
2024-05-15 2024-03-31 13F MARCUS & MILLICHAP COM Call 3,800 171.43 130 111.48 n/a n/a n/a
2024-02-14 2023-12-31 13F MARCUS & MILLICHAP COM Call 1,400 -74.07 61 -61.39 n/a n/a n/a
2023-11-14 2023-09-30 13F MARCUS & MILLICHAP COM Call 5,400 92.86 158 79.55 n/a n/a n/a
2023-08-14 2023-06-30 13F MARCUS & MILLICHAP COM Call 2,800 115.38 88 114.63 n/a n/a n/a
2023-05-15 2023-03-31 13F MARCUS & MILLICHAP COM Call 1,300 -60.61 42 -63.72 n/a n/a n/a
2023-02-14 2022-12-31 13F MARCUS & MILLICHAP COM Call 3,300 114 n/a n/a n/a
2019-05-15 2019-03-31 13F MARCUS & MILLICHAP Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F MARCUS & MILLICHAP Cmn Call 19,700 4.23 676 3.05 n/a n/a n/a
2018-11-13 2018-09-30 13F MARCUS & MILLICHAP Cmn Call 18,900 656 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
(%)
2025-02-14 2024-12-31 13F MARCUS & MILLICHAP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F MARCUS & MILLICHAP COM Put 2,200 0.00 87 26.09 n/a n/a n/a
2024-08-14 2024-06-30 13F MARCUS & MILLICHAP COM Put 2,200 -12.00 69 -18.82 n/a n/a n/a
2024-05-15 2024-03-31 13F MARCUS & MILLICHAP COM Put 2,500 127.27 85 77.08 n/a n/a n/a
2024-02-14 2023-12-31 13F MARCUS & MILLICHAP COM Put 1,100 -35.29 48 -2.04 n/a n/a n/a
2023-11-14 2023-09-30 13F MARCUS & MILLICHAP COM Put 1,700 -86.07 50 -87.24 n/a n/a n/a
2023-08-14 2023-06-30 13F MARCUS & MILLICHAP COM Put 12,200 139.22 384 135.58 n/a n/a n/a
2023-05-15 2023-03-31 13F MARCUS & MILLICHAP COM Put 5,100 -5.56 164 -12.37 n/a n/a n/a
2023-02-14 2022-12-31 13F MARCUS & MILLICHAP COM Put 5,400 186 n/a n/a n/a
2022-11-14 2022-09-30 13F MARCUS & MILLICHAP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F MARCUS & MILLICHAP COM Put 7,400 274 n/a n/a n/a
2021-02-16 2020-12-31 13F MARCUS & MILLICHAP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-16 2020-09-30 13F MARCUS & MILLICHAP COM Put 8,000 220 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.