SecurityUS09248U7182 / BlackRock Liquidity Funds: T-Fund, Institutional Shares
InstitutionBLACKROCK SERIES, INC. - BlackRock International Fund Investor A
Latest Disclosed Ownership11,465,748 shares
Latest Disclosed Value $ 11,465,748
BLACKROCK SERIES, INC. - BlackRock International Fund Investor A reports 1,399.04% increase in ownership of US09248U7182 / BlackRock Liquidity Funds: T-Fund, Institutional Shares

On July 24, 2025 - BLACKROCK SERIES, INC. - BlackRock International Fund Investor A filed a NPORT-P form disclosing ownership of 11,465,748 shares of BlackRock Liquidity Funds: T-Fund, Institutional Shares (US:US09248U7182) valued at $11,465,748 USD as of May 30, 2025. The entity filed a previous NPORT-P on April 24, 2025 disclosing 764,873 shares of BlackRock Liquidity Funds: T-Fund, Institutional Shares. This represents a change in shares of 1,399.04% 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)
2025-07-24 2025-05-30 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 11,465,748 10,700,875 1,399.04 11,466 1,400.65 0.9550
2025-04-24 2025-02-28 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 764,873 -25,672,382 -97.11 765 -97.11 0.0575
2025-01-27 2024-11-29 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 26,437,255 10,266,826 63.49 26,437 63.49 1.8575
2024-10-24 2024-08-30 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 16,170,429 -20,554,791 -55.97 16,170 -55.97 0.9677
2024-07-24 2024-05-31 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 36,725,220 -3,494,361 -8.69 36,725 -8.69 2.1291
2024-04-24 2024-02-29 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 40,219,581 -13,395,848 -24.99 40,220 -24.99 2.3364
2024-01-25 2023-11-30 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 53,615,429 -11,199,446 -17.28 53,615 -17.28 3.1237
2023-10-27 2023-08-31 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 64,814,875 23,611,095 57.30 64,815 57.30 3.5912
2023-07-25 2023-05-31 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 41,203,780 23,665,802 134.94 41,204 134.95 2.3871
2023-04-25 2023-02-28 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 17,537,978 -20,531,643 -53.93 17,538 -53.93 1.0027
2023-01-24 2022-11-30 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 38,069,621 -89,491,634 -70.16 38,070 -70.16 2.1540
2022-10-27 2022-08-31 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 127,561,255 8,501,224 7.14 127,561 7.14 7.0462
2022-07-25 2022-05-31 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 119,060,031 99,520,219 509.32 119,060 509.35 5.4406
2022-04-25 2022-02-28 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 19,539,812 -23,395,644 -54.49 19,540 -54.49 0.7444
2022-01-25 2021-11-30 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 42,935,456 29,206,145 212.73 42,935 212.73 1.6684
2021-10-26 2021-08-31 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 13,729,311 -79,255,877 -85.23 13,729 -85.24 0.6123
2021-07-26 2021-05-28 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 92,985,188 57,019,125 158.54 92,985 158.54 5.4330
2021-04-27 2021-02-26 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 35,966,063 -12,055,510 -25.10 35,966 -25.10 3.3102
2021-01-27 2020-11-30 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 48,021,573 32,128,418 202.15 48,022 202.15 5.6944
2020-10-27 2020-08-31 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 15,893,155 5,173,395 48.26 15,893 48.27 2.1908
2020-07-22 2020-05-29 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 10,719,760 -2,498,615 -18.90 10,720 -18.91 1.6862
2020-06-24 2020-04-30 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 13,218,375 -9,699,067 -42.32 13,218 -42.32 2.2565
2020-03-27 2020-01-31 NP BlackRock Liquidity Funds T-Fund STIV US09248U7182 22,917,442 22,917,442 22,917 3.3677
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.