Meta Platforms, Inc.
MX ˙ BMV ˙ US30303M1027
SecurityMX:META / Meta Platforms, Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership475,030 shares
Latest Disclosed Value $ 271,068,823
Mercer Global Advisors Inc /adv ownership in META / Meta Platforms, Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 475,030 shares of Meta Platforms, Inc. (MX:META) valued at $271,068,823 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 461,718 shares of Meta Platforms, Inc.. This represents a change in shares of 2.88% during the quarter.

Mercer Global Advisors Inc /adv 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.

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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: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 475,030 13,312 2.88 271,069 -9.29 0.4011
2026-02-17 2025-12-31 13F META PLATFORMS CL A 30303M102 461,718 31,284 7.27 298,846 -4.93 0.4555
2025-11-14 2025-09-30 13F META PLATFORMS CL A 30303M102 430,434 430,434 314,340 0.5247
2025-08-14 2025-06-30 13F META PLATFORMS CL A 30303M102 0 -366,518 -100.00 0 -100.00
2025-05-15 2025-03-31 13F META PLATFORMS CL A 30303M102 366,518 14,224 4.04 211,242 2.41 0.4846
2025-02-14 2024-12-31 13F META PLATFORMS CL A 30303M102 352,294 -33,616 -8.71 206,272 -7.27 0.5033
2024-11-14 2024-09-30 13F META PLATFORMS CL A 30303M102 385,910 22,753 6.27 222,442 21.96 0.5206
2024-08-12 2024-06-30 13F META PLATFORMS CL A 30303M102 363,157 32,473 9.82 182,390 113,893.13 0.4973
2024-05-15 2024-03-31 13F META PLATFORMS CL A 30303M102 330,684 -12,611 -3.67 161 32.23 0.4567
2024-02-15 2023-12-31 13F META PLATFORMS CL A 30303M102 343,295 18,424 5.67 122 24.74 0.3655
2023-11-15 2023-09-30 13F/A-1 META PLATFORMS CL A 30303M102 324,871 11,975 3.83 98 8.99 0.3704
2023-11-14 2023-09-30 13F META PLATFORMS CL A 30303M102 324,871 11,975 98 0.3703
2023-08-14 2023-06-30 13F META PLATFORMS CL A 30303M102 312,896 -2,946 -0.93 90 36.92 0.3564
2023-05-16 2023-03-31 13F META PLATFORMS CL A 30303M102 315,842 13,004 4.29 66 80.56 0.2990
2023-02-09 2022-12-31 13F META PLATFORMS CL A 30303M102 302,838 16,861 5.90 36 -99.91 0.1825
2022-11-15 2022-09-30 13F META PLATFORMS CL A 30303M102 285,977 26,609 10.26 38,801 -7.23 0.2303
2022-08-10 2022-06-30 13F META PLATFORMS CL A 30303M102 259,368 -3,408 -1.30 41,823 -28.42 0.2560
2022-05-10 2022-03-31 13F FACEBOOK CL A 30303M102 262,776 43,276 19.72 58,431 -20.86 0.3441
2022-02-04 2021-12-31 13F FACEBOOK CL A 30303M102 219,500 -10,370 -4.51 73,829 -5.37 0.4559
2021-11-10 2021-09-30 13F FACEBOOK CL A 30303M102 229,870 8,051 3.63 78,016 1.15 0.5449
2021-08-10 2021-06-30 13F FACEBOOK CL A 30303M102 221,819 16,061 7.81 77,129 27.27 0.5932
2021-08-10 2021-03-31 13F/A-1 FACEBOOK CL A 30303M102 205,758 40,499 24.51 60,602 34.24 0.5512
2021-05-11 2021-03-31 13F FACEBOOK CL A 30303M102 187,068 21,809 55,097 0.5275
2021-02-12 2020-12-31 13F FACEBOOK CL A 30303M102 165,259 -3,992 -2.36 45,143 2.03 0.5638
2020-12-10 2020-09-30 13F FACEBOOK CL A 30303M102 169,251 8,756 5.46 44,246 21.41 0.6656
2020-08-10 2020-06-30 13F FACEBOOK CL A 30303M102 160,495 33,092 25.97 36,444 71.49 0.6617
2020-05-18 2020-03-31 13F FACEBOOK CL A 30303M102 127,403 -876 -0.68 21,251 -19.29 0.4677
2020-02-13 2019-12-31 13F FACEBOOK INC CL A COM 30303M102 128,279 839 0.66 26,330 16.02 0.5258
2019-11-12 2019-09-30 13F FACEBOOK INC CL A COM 30303M102 127,440 -1,988 -1.54 22,694 -9.15 0.5337
2019-08-14 2019-06-30 13F FACEBOOK INC CL A COM 30303M102 129,428 -11,978 -8.47 24,980 5.98 0.6621
2019-04-23 2019-03-31 13F/A-1 FACEBOOK INC CL A COM 30303M102 141,406 141,406 23,571 0.8477
2019-04-12 2019-03-31 13F FACEBOOK INC CL A COM 30303M102 137,355 18,006 0.9596
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
(%)
2025-11-14 2025-09-30 13F META PLATFORMS CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F META PLATFORMS CL A Put 393,842 288,851 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.