Meta Platforms, Inc.
MX ˙ BMV ˙ US30303M1027
SecurityMX:META / Meta Platforms, Inc.
InstitutionSamlyn Capital, Llc
Latest Disclosed Ownership290,844 shares
Latest Disclosed Value $ 166,400,578
Samlyn Capital, Llc ownership in META / Meta Platforms, Inc.

On May 15, 2026 - Samlyn Capital, Llc filed a 13F-HR form disclosing ownership of 290,844 shares of Meta Platforms, Inc. (MX:META) valued at $166,400,578 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 193,363 shares of Meta Platforms, Inc.. This represents a change in shares of 50.41% during the quarter.

Samlyn Capital, Llc has a history of taking positions in derivatives of the underlying security (META) in the form of stock options.

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:META / Meta Platforms, 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 META PLATFORMS CL A 30303M102 290,844 97,481 50.41 166,401 30.37 1.4696
2026-02-17 2025-12-31 13F META PLATFORMS CL A 30303M102 193,363 -120,764 -38.44 127,637 -44.67 2.0333
2025-11-14 2025-09-30 13F META PLATFORMS CL A 30303M102 314,127 -47,297 -13.09 230,689 -13.52 3.1736
2025-08-14 2025-06-30 13F META PLATFORMS CL A 30303M102 361,424 -51,890 -12.55 266,763 11.98 3.6650
2025-05-15 2025-03-31 13F META PLATFORMS CL A 30303M102 413,314 573 0.14 238,218 -1.43 3.5283
2025-02-14 2024-12-31 13F META PLATFORMS CL A 30303M102 412,741 211,855 105.46 241,664 110.15 3.6495
2024-11-14 2024-09-30 13F META PLATFORMS CL A 30303M102 200,886 200,886 114,995 1.7404
2024-08-14 2024-06-30 13F META PLATFORMS CL A 30303M102 0 -540,895 -100.00 0 -100.00
2024-05-15 2024-03-31 13F META PLATFORMS CL A 30303M102 540,895 283,811 110.40 262,648 188.63 4.3978
2024-02-14 2023-12-31 13F META PLATFORMS CL A 30303M102 257,084 -351,216 -57.74 90,997 -50.17 1.8118
2023-11-14 2023-09-30 13F META PLATFORMS CL A 30303M102 608,300 230,962 61.21 182,618 68.64 2.9854
2023-08-14 2023-06-30 13F META PLATFORMS CL A 30303M102 377,338 -418,630 -52.59 108,288 -35.81 1.8333
2023-05-15 2023-03-31 13F META PLATFORMS CL A 30303M102 795,968 -519,082 -39.47 168,697 6.60 3.0609
2023-02-14 2022-12-31 13F META PLATFORMS CL A 30303M102 1,315,050 1,249,090 1,893.71 158,253 1,668.39 3.0980
2022-11-14 2022-09-30 13F META PLATFORMS CL A 30303M102 65,960 65,960 8,949 0.1663
2021-11-15 2021-09-30 13F FACEBOOK CL A 30303M102 0 -850 -100.00 0 -100.00
2021-08-16 2021-06-30 13F FACEBOOK CL A 30303M102 850 -2,168 -71.84 296 -66.67 0.0043
2021-05-17 2021-03-31 13F FACEBOOK CL A 30303M102 3,018 1,515 100.80 888 116.06 0.0123
2021-02-16 2020-12-31 13F FACEBOOK CL A 30303M102 1,503 469 45.36 411 51.66 0.0059
2020-11-16 2020-09-30 13F FACEBOOK CL A 30303M102 1,034 -117,250 -99.13 271 -98.99 0.0049
2020-08-14 2020-06-30 13F FACEBOOK CL A 30303M102 118,284 118,284 26,858 0.4968
2018-02-14 2017-12-31 13F FACEBOOK CL A 30303M102 0 -231,253 -100.00 0 -100.00
2017-11-14 2017-09-30 13F FACEBOOK CL A 30303M102 231,253 231,253 39,514 0.9985
2017-08-14 2017-06-30 13F FACEBOOK CL A 30303M102 0 -277,100 -100.00 0 -100.00
2017-05-15 2017-03-31 13F FACEBOOK CL A 30303M102 277,100 277,100 39,362 0.9139
2017-02-14 2016-12-31 13F FACEBOOK CL A 30303M102 0 -224,601 -100.00 0 -100.00
2016-11-14 2016-09-30 13F FACEBOOK CL A 30303M102 224,601 187,763 509.70 28,809 584.46 0.6858
2016-08-15 2016-06-30 13F FACEBOOK CL A 30303M102 36,838 -415,477 -91.86 4,209 -91.84 0.1005
2016-05-16 2016-03-31 13F FACEBOOK CL A 30303M102 452,315 452,315 0.00 51,610 1.1085
2016-02-16 2015-12-31 13F FACEBOOK CL A 30303M102 0 -629,600 -100.00 0 -100.00
2015-11-16 2015-09-30 13F FACEBOOK CL A 30303M102 629,600 -376,900 -37.45 56,602 -34.43 1.0359
2015-08-14 2015-06-30 13F FACEBOOK CL A 30303M102 1,006,500 100,800 11.13 86,322 15.93 1.3713
2015-05-15 2015-03-31 13F FACEBOOK CL A 30303M102 905,700 905,700 74,462 1.1950
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
(%)
2026-02-17 2025-12-31 13F META PLATFORMS CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F META PLATFORMS CL A Put 53,000 38,922 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.