Meta Platforms, Inc.
PL ˙ WSE ˙ US30303M1027
2.259,00 PLN ↑10,00 (0,44%)
2026-06-05
DEL PRIS
SecurityPL:META / Meta Platforms, Inc.
InstitutionBlair William & Co/il
Latest Disclosed Ownership721,720 shares
Latest Disclosed Value $ 412,917,905
Blair William & Co/il ownership in META / Meta Platforms, Inc.

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 721,720 shares of Meta Platforms, Inc. (PL:META) valued at $1,480,608,580 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 736,202 shares of Meta Platforms, Inc.. This represents a change in shares of -1.97% during the quarter. The current value of the position is $1,630,365,480 USD.

Blair William & Co/il has a history of taking positions in derivatives of the underlying security (META) 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.

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.

PL: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)
2026-05-08 2026-03-31 13F META PLATFORMS CL A 30303M102 721,720 -14,482 -1.97 412,918 -15.03 1.1833
2026-02-17 2025-12-31 13F META PLATFORMS CL A 30303M102 736,202 57,345 8.45 485,960 -2.52 1.3043
2025-11-12 2025-09-30 13F META PLATFORMS CL A 30303M102 678,857 102,259 17.73 498,539 17.14 1.3270
2025-07-24 2025-06-30 13F META PLATFORMS CL A 30303M102 576,598 25,440 4.62 425,581 33.97 1.1821
2025-05-09 2025-03-31 13F META PLATFORMS CL A 30303M102 551,158 173,886 46.09 317,665 43.81 0.9581
2025-02-12 2024-12-31 13F META PLATFORMS CL A 30303M102 377,272 20,594 5.77 220,897 8.19 0.6425
2024-11-12 2024-09-30 13F META PLATFORMS CL A 30303M102 356,678 25,412 7.67 204,177 22.24 0.5996
2024-08-12 2024-06-30 13F META PLATFORMS CL A 30303M102 331,266 19,899 6.39 167,031 10.48 0.5152
2024-05-09 2024-03-31 13F META PLATFORMS CL A 30303M102 311,367 13,731 4.61 151,194 43.51 0.4749
2024-02-12 2023-12-31 13F META PLATFORMS CL A 30303M102 297,636 24,363 8.92 105,351 28.42 0.3590
2023-11-09 2023-09-30 13F META PLATFORMS CL A 30303M102 273,273 19,633 7.74 82,039 12.71 0.3146
2023-08-11 2023-06-30 13F META PLATFORMS CL A 30303M102 253,640 11,106 4.58 72,789 41.61 0.2666
2023-05-12 2023-03-31 13F META PLATFORMS CL A 30303M102 242,534 -7,004 -2.81 51,403 71.17 0.2053
2023-02-10 2022-12-31 13F META PLATFORMS CL A 30303M102 249,538 -89,993 -26.51 30,029 -34.81 0.1306
2022-11-09 2022-09-30 13F META PLATFORMS CL A 30303M102 339,531 -26,829 -7.32 46,067 -22.02 0.2116
2022-08-10 2022-06-30 13F META PLATFORMS CL A 30303M102 366,360 -27,064 -6.88 59,075 -32.47 0.2621
2022-05-13 2022-03-31 13F META PLATFORMS CL A 30303M102 393,424 -159,261 -28.82 87,482 -52.94 0.3066
2022-02-14 2021-12-31 13F META PLATFORMS CL A 30303M102 552,685 14,916 2.77 185,896 1.85 0.5831
2021-11-12 2021-09-30 13F FACEBOOK CL A 30303M102 537,769 6,318 1.19 182,514 -1.23 0.6213
2021-08-12 2021-06-30 13F FACEBOOK CL A 30303M102 531,451 -12,059 -2.22 184,791 15.44 0.6403
2021-05-13 2021-03-31 13F FACEBOOK CL A 30303M102 543,510 -73,950 -11.98 160,080 -5.09 0.6039
2021-02-09 2020-12-31 13F FACEBOOK CL A 30303M102 617,460 24,061 4.05 168,665 8.53 0.6183
2020-11-06 2020-09-30 13F FACEBOOK CL A 30303M102 593,399 75,517 14.58 155,411 32.16 0.6592
2020-08-12 2020-06-30 13F FACEBOOK CL A 30303M102 517,882 71,272 15.96 117,595 57.86 0.5607
2020-05-11 2020-03-31 13F FACEBOOK CL A 30303M102 446,610 122,211 37.67 74,495 11.88 0.4656
2020-02-13 2019-12-31 13F FACEBOOK CL A 30303M102 324,399 3,178 0.99 66,583 16.40 0.3422
2019-11-12 2019-09-30 13F FACEBOOK CL A 30303M102 321,221 -1,304 -0.40 57,203 -8.10 0.3296
2019-08-13 2019-06-30 13F FACEBOOK CL A 30303M102 322,525 10,233 3.28 62,247 19.58 0.3559
2019-05-14 2019-03-31 13F FACEBOOK CL A 30303M102 312,292 6,872 2.25 52,056 30.02 0.3174
2019-02-14 2018-12-31 13F FACEBOOK CL A 30303M102 305,420 -226,814 -42.62 40,038 -54.26 0.2924
2018-11-13 2018-09-30 13F FACEBOOK CL A 30303M102 532,234 -100,841 -15.93 87,531 -28.85 0.5363
2018-08-13 2018-06-30 13F FACEBOOK CL A 30303M102 633,075 -163,993 -20.57 123,019 -3.41 0.8367
2018-05-15 2018-03-31 13F FACEBOOK CL A 30303M102 797,068 -393,870 -33.07 127,363 -39.40 0.9007
2018-02-14 2017-12-31 13F FACEBOOK CL A 30303M102 1,190,938 -3,627 -0.30 210,153 2.96 1.4265
2017-11-13 2017-09-30 13F FACEBOOK INC-A COM 30303M102 1,194,565 6,387 0.54 204,115 13.78 1.5307
2017-08-04 2017-06-30 13F FACEBOOK INC-A COM 30303M102 1,188,178 39,137 3.41 179,391 13.14 1.3470
2017-05-10 2017-03-31 13F FACEBOOK INC-A COM 30303M102 1,149,041 82,409 7.73 158,551 29.20 1.2778
2017-02-14 2016-12-31 13F FACEBOOK INC-A COM 30303M102 1,066,632 66,981 6.70 122,716 -4.30 1.0976
2016-11-14 2016-09-30 13F FACEBOOK INC-A COM 30303M102 999,651 26,534 2.73 128,225 15.30 1.1334
2016-08-08 2016-06-30 13F FACEBOOK INC-A COM 30303M102 973,117 -21,148 -2.13 111,208 -1.97 1.0369
2016-05-16 2016-03-31 13F FACEBOOK INC-A COM 30303M102 994,265 168,467 20.40 113,445 31.26 1.0680
2016-02-16 2015-12-31 13F FACEBOOK INC-A COM 30303M102 825,798 -224,241 -21.36 86,427 -8.44 0.8115
2015-11-12 2015-09-30 13F FACEBOOK INC-A COM 30303M102 1,050,039 -1,195,488 -53.24 94,398 -50.98 0.8167
2015-08-03 2015-06-30 13F FACEBOOK INC-A COM 30303M102 2,245,527 786,618 53.92 192,587 60.56 0.2880
2015-05-11 2015-03-31 13F FACEBOOK INC-A COM 30303M102 1,458,909 1,458,909 0.00 119,944 0.1847
2015-02-05 2014-12-31 13F FACEBOOK INC-A COM 30303M102 0 -1,297,981 -100.00 0 -100.00
2014-11-04 2014-09-30 13F FACEBOOK INC-A COM 30303M102 1,297,981 19,536 1.53 102,592 19.26 0.1755
2014-08-01 2014-06-30 13F FACEBOOK INC-A COM 30303M102 1,278,445 802,391 168.55 86,026 199.98 0.1405
2014-05-06 2014-03-31 13F FACEBOOK INC-A COM 30303M102 476,054 86,550 22.22 28,677 34.73 0.0474
2014-02-11 2013-12-31 13F FACEBOOK INC-A COM 30303M102 389,504 35,282 9.96 21,285 19.63 0.0352
2013-11-12 2013-09-30 13F FACEBOOK INC-A COM 30303M102 354,222 165,004 87.20 17,792 277.99 0.0316
2013-08-07 2013-06-30 13F FACEBOOK INC-A COM 30303M102 189,218 189,218 4,707 0.0093
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
(%)
2018-05-15 2018-03-31 13F FACEBOOK CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-14 2017-12-31 13F FACEBOOK CL A Call 200 -71.43 35 -70.83 n/a n/a n/a
2017-11-13 2017-09-30 13F FACEBOOK INC-A OPTION Call 700 -91.57 120 -90.42 n/a n/a n/a
2017-08-04 2017-06-30 13F FACEBOOK INC CL A OPTION Call 8,300 7.79 1,253 14.53 n/a n/a n/a
2017-05-10 2017-03-31 13F FACEBOOK INC CL A OPTION Call 7,700 13.24 1,094 39.90 n/a n/a n/a
2017-02-14 2016-12-31 13F FACEBOOK INC-A OPTION Call 6,800 41.67 782 26.95 n/a n/a n/a
2016-11-14 2016-09-30 13F CALL OPTION Call 4,800 616 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
(%)
2018-08-13 2018-06-30 13F FACEBOOK CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F FACEBOOK CL A Put 300 48 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.