Meta Platforms, Inc.
MX ˙ BMV ˙ US30303M1027
SecurityMX:META / Meta Platforms, Inc.
InstitutionTidemark, LLC
Latest Disclosed Ownership958 shares
Latest Disclosed Value $ 547,968
Tidemark, LLC reports 6.92% increase in ownership of META / Meta Platforms, Inc.

On May 7, 2026 - Tidemark, LLC filed a 13F-HR form disclosing ownership of 958 shares of Meta Platforms, Inc. (MX:META) valued at $547,968 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 896 shares of Meta Platforms, Inc.. This represents a change in shares of 6.92% during the quarter.

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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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)
2026-05-07 2026-03-31 13F META PLATFORMS INC CL A Stock 30303M102 958 62 6.92 548 -7.45 0.1393
2026-02-10 2025-12-31 13F META PLATFORMS Common Stock 30303M102 896 -25 -2.71 591 -12.57 0.1680
2025-11-03 2025-09-30 13F META PLATFORMS Common Stock 30303M102 921 51 5.86 677 5.30 0.1972
2025-08-11 2025-06-30 13F META PLATFORMS Common Stock 30303M102 870 180 26.09 642 61.71 0.2070
2025-05-09 2025-03-31 13F META PLATFORMS Common Stock 30303M102 690 56 8.83 398 7.01 0.1459
2025-02-10 2024-12-31 13F META PLATFORMS Common Stock 30303M102 634 42 7.09 371 9.44 0.1422
2024-11-07 2024-09-30 13F META PLATFORMS Common Stock 30303M102 592 -26 -4.21 339 9.00 0.1392
2024-08-12 2024-06-30 13F META PLATFORMS Common Stock 30303M102 618 12 1.98 312 5.78 0.1434
2024-05-13 2024-03-31 13F META PLATFORMS Common Stock 30303M102 606 151 33.19 294 82.61 0.1642
2024-02-09 2023-12-31 13F META PLATFORMS Common Stock 30303M102 455 455 161 0.1008
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.