Lam Research Corporation
US ˙ NasdaqGS ˙ US5128071082

SecurityLRCX / Lam Research Corporation
InstitutionBlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I
Latest Disclosed Ownership1,239 shares
Latest Disclosed Value $ 120,604
BlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I reports 75.14% decrease in ownership of LRCX / Lam Research Corporation

On August 28, 2025 - BlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I filed a NPORT-P form disclosing ownership of 1,239 shares of Lam Research Corporation (US:LRCX) valued at $120,604 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 27, 2025 disclosing 4,984 shares of Lam Research Corporation. This represents a change in shares of -75.14% during the quarter. The current value of the position is $331,779 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)
2025-08-28 2025-06-30 NP Lam Research EC US5128073062 1,239 -3,745 -75.14 121 -66.85 0.0794
2025-05-27 2025-03-31 NP Lam Research EC US5128073062 4,984 -976 -16.38 362 -15.81 0.2418
2025-02-27 2024-12-31 NP Lam Research EC US5128073062 5,960 5,514 1,236.32 430 18.46 0.2661
2024-11-26 2024-09-30 NP Lam Research EC US5128071082 446 -352 -44.11 364 -57.24 0.2237
2024-08-27 2024-06-30 NP Lam Research EC US5128071082 798 206 34.80 850 47.65 0.5141
2024-05-28 2024-03-31 NP Lam Research EC US5128071082 592 -3 -0.50 575 23.39 0.3360
2024-02-27 2023-12-31 NP Lam Research EC US5128071082 595 244 69.52 466 112.79 0.2795
2023-11-22 2023-09-30 NP Lam Research EC US5128071082 351 117 50.00 220 46.00 0.1323
2023-08-25 2023-06-30 NP Lam Research EC US5128071082 234 -202 -46.33 150 -35.06 0.0880
2023-05-26 2023-03-31 NP Lam Research EC US5128071082 436 -169 -27.93 231 -9.06 0.1365
2023-02-24 2022-12-31 NP Lam Research EC US5128071082 605 -320 -34.59 254 -24.85 0.1461
2022-11-28 2022-09-30 NP Lam Research EC US5128071082 925 351 61.15 339 38.52 0.1988
2022-08-26 2022-06-30 NP Lam Research EC US5128071082 574 -47 -7.57 245 -26.73 0.1373
2022-05-25 2022-03-31 NP Lam Research EC US5128071082 621 202 48.21 334 10.63 0.1685
2022-02-25 2021-12-31 NP Lam Research EC US5128071082 419 117 38.74 301 76.02 0.1402
2021-11-26 2021-09-30 NP Lam Research EC US5128071082 302 119 65.03 172 43.70 0.0787
2021-08-24 2021-06-30 NP Lam Research EC US5128071082 183 -54 -22.78 119 -15.60 0.0541
2021-05-25 2021-03-31 NP Lam Research EC US5128071082 237 -58 -19.66 141 1.44 0.0643
2021-02-24 2020-12-31 NP Lam Research EC US5128071082 295 244 478.43 139 768.75 0.0623
2020-08-24 2020-06-30 NP Lam Research EC US5128071082 51 -120 -70.18 16 -60.98 0.0079
2020-05-26 2020-03-31 NP Lam Research EC US5128071082 171 171 41 0.0202
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.