Meta Platforms, Inc.
US ˙ NasdaqGS ˙ US30303M1027

SecurityMETA / Meta Platforms, Inc.
InstitutionBoston Partners
Latest Disclosed Ownership1,495,356 shares
Latest Disclosed Value $ 855,763,412
Boston Partners reports 34.34% increase in ownership of META / Meta Platforms, Inc.

On May 11, 2026 - Boston Partners filed a 13F-HR form disclosing ownership of 1,495,356 shares of Meta Platforms, Inc. (US:META) valued at $855,538,028 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,113,139 shares of Meta Platforms, Inc.. This represents a change in shares of 34.34% during the quarter. The current value of the position is $931,576,881 USD.

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)
2026-05-11 2026-03-31 13F META PLATFORMS CL A 30303M102 1,495,356 382,217 34.34 855,763 16.69 0.3830
2026-02-13 2025-12-31 13F META PLATFORMS CL A 30303M102 1,113,139 1,113,139 733,356 0.7593
2023-02-08 2022-12-31 13F META PLATFORMS CL A 30303M102 0 -3,203,564 -100.00 0 -100.00
2022-11-09 2022-09-30 13F META PLATFORMS CL A 30303M102 3,203,564 902,469 39.22 427,503 15.25 0.6257
2022-08-10 2022-06-30 13F META PLATFORMS CL A 30303M102 2,301,095 778,942 51.17 370,923 9.58 0.5184
2022-05-10 2022-03-31 13F META PLATFORMS CL A 30303M102 1,522,153 44,949 3.04 338,493 -31.86 0.4101
2022-02-04 2021-12-31 13F META PLATFORMS CL A 30303M102 1,477,204 -69,546 -4.50 496,750 -5.33 0.5984
2021-11-05 2021-09-30 13F FACEBOOK CL A 30303M102 1,546,750 121,436 8.52 524,737 5.87 0.6648
2021-08-12 2021-06-30 13F FACEBOOK CL A 30303M102 1,425,314 347,552 32.25 495,646 56.10 0.6321
2021-05-10 2021-03-31 13F FACEBOOK CL A 30303M102 1,077,762 714,221 196.46 317,509 219.73 0.4258
2021-02-10 2020-12-31 13F/A-1 FACEBOOK CL A 30303M102 363,541 -505,425 -58.16 99,305 -56.37 0.1544
2021-02-04 2020-12-31 13F FACEBOOK CL A 30303M102 363,541 -505,425 99,305 59,577.0975
2020-11-13 2020-09-30 13F/A-1 FACEBOOK CL A 30303M102 868,966 -369,699 -29.85 227,582 -19.11 0.4144
2020-11-09 2020-09-30 13F FACEBOOK CL A 30303M102 1,238,665 0 281,348 206,542.9468
2020-08-12 2020-06-30 13F FACEBOOK CL A 30303M102 1,238,665 29,390 2.43 281,348 39.54 0.5168
2020-05-13 2020-03-31 13F FACEBOOK CL A 30303M102 1,209,275 718,813 146.56 201,624 100.25 0.4004
2020-02-06 2019-12-31 13F/A-1 FACEBOOK CL A 30303M102 490,462 -53,897 -9.90 100,684 3.80 0.1332
2020-02-05 2019-12-31 13F FACEBOOK CL A 30303M102 490,462 -53,897 100,684 56,607.4855
2019-11-20 2019-09-30 13F/A-1 FACEBOOK CL A 30303M102 544,359 -28,954 -5.05 96,999 -12.37 0.1314
2019-11-08 2019-09-30 13F FACEBOOK CL A 30303M102 573,490 177 110,686 0.1464
2019-08-26 2019-06-30 13F/A-1 FACEBOOK CL A 30303M102 573,313 -33,680 -5.55 110,689 9.40 0.1452
2019-08-09 2019-06-30 13F FACEBOOK CL A 30303M102 573,313 -33,680 110,689
2019-05-13 2019-03-31 13F/A-1 FACEBOOK CL A 30303M102 606,993 606,993 101,180 0.1341
2019-05-03 2019-03-31 13F FACEBOOK CL A 30303M102 606,993 101,180 0.1341
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.