iShares Trust - iShares S&P 500 Growth ETF
MX ˙ BMV ˙ US4642873099
SecurityMX:IVW / iShares Trust - iShares S&P 500 Growth ETF
InstitutionMattern Capital Management, Llc
Latest Disclosed Ownership1,805 shares
Latest Disclosed Value $ 204,164
Mattern Capital Management, Llc reports 0.06% decrease in ownership of IVW / iShares Trust - iShares S&P 500 Growth ETF

On May 4, 2026 - Mattern Capital Management, Llc filed a 13F-HR form disclosing ownership of 1,805 shares of iShares Trust - iShares S&P 500 Growth ETF (MX:IVW) valued at $204,164 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 1,806 shares of iShares Trust - iShares S&P 500 Growth ETF. This represents a change in shares of -0.06% 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)
2026-05-04 2026-03-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 1,805 -1 -0.06 204 -8.11 0.0245
2026-01-29 2025-12-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 1,806 -69 -3.68 223 -1.77 0.0263
2025-10-21 2025-09-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 1,875 -79 -4.04 226 5.12 0.0266
2025-07-21 2025-06-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 1,954 -566 -22.46 215 -7.73 0.0258
2025-04-23 2025-03-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 2,520 -264 -9.48 234 -17.38 0.0298
2025-02-03 2024-12-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 2,784 -2,725 -49.46 283 -46.49 0.0368
2024-10-24 2024-09-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 5,509 -2,108 -27.67 527 -25.14 0.0664
2024-08-02 2024-06-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 7,617 -541 -6.63 705 2.33 0.0974
2024-05-14 2024-03-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 8,158 -7,413 -47.61 689 -41.15 0.0935
2024-02-14 2023-12-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 15,571 -164 -1.04 1,169 8.64 0.1700
2023-11-08 2023-09-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 15,735 -1,614 -9.30 1,077 -11.95 0.1742
2023-08-08 2023-06-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 17,349 205 1.20 1,223 11.60 0.1985
2023-05-12 2023-03-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 17,144 -316 -1.81 1,095 7.25 0.1932
2023-02-06 2022-12-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 17,460 -5 -0.03 1,021 1.09 0.1889
2022-11-08 2022-09-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 17,465 -331 -1.86 1,010 -5.96 0.2104
2022-08-08 2022-06-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 17,796 1,687 10.47 1,074 -12.68 0.2124
2022-05-03 2022-03-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 16,109 430 2.74 1,230 -6.25 0.2199
2022-02-03 2021-12-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 15,679 617 4.10 1,312 17.88 0.2295
2021-11-01 2021-09-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 15,062 548 3.78 1,113 5.40 0.2197
2021-08-03 2021-06-30 13F ISHARES TR S&P 500 GRWT ETF 464287309 14,514 2,399 19.80 1,056 33.84 0.2088
2021-05-17 2021-03-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 12,115 2,803 30.10 789 32.83 0.1706
2021-02-03 2020-12-31 13F ISHARES TR S&P 500 GRWT ETF 464287309 9,312 9,312 594 0.1424
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.