FormFactor, Inc.
US ˙ NasdaqGS ˙ US3463751087

SecurityFORM / FormFactor, Inc.
InstitutionCAPROCK Group, Inc.
Latest Disclosed Ownership5,167 shares
Latest Disclosed Value $ 501,147
CAPROCK Group, Inc. reports 24.94% decrease in ownership of FORM / FormFactor, Inc.

On May 11, 2026 - CAPROCK Group, Inc. filed a 13F-HR form disclosing ownership of 5,167 shares of FormFactor, Inc. (US:FORM) valued at $501,147 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 6,884 shares of FormFactor, Inc.. This represents a change in shares of -24.94% during the quarter. The current value of the position is $651,145 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 FORMFACTOR COM 346375108 5,167 -1,717 -24.94 501 30.81 0.0122
2026-01-28 2025-12-31 13F FORMFACTOR COM 346375108 6,884 6,884 384 0.0081
2025-11-06 2025-09-30 13F FORMFACTOR COM 346375108 0 -7,558 -100.00 0 -100.00
2025-05-15 2025-03-31 13F FORMFACTOR COM 346375108 7,558 697 10.16 214 -29.24 0.0065
2025-01-23 2024-12-31 13F FORMFACTOR COM 346375108 6,861 42 0.62 302 -3.83 0.0099
2024-11-07 2024-09-30 13F FORMFACTOR COM 346375108 6,819 95 1.41 314 -23.10 0.0114
2024-08-06 2024-06-30 13F FORMFACTOR COM 346375108 6,724 72 1.08 407 34.32 0.0166
2024-04-29 2024-03-31 13F FORMFACTOR COM 346375108 6,652 -45 -0.67 304 8.60 0.0174
2024-01-18 2023-12-31 13F FORMFACTOR COM 346375108 6,697 -35 -0.52 279 18.72 0.0178
2023-10-18 2023-09-30 13F FORMFACTOR COM 346375108 6,732 22 0.33 235 2.62 0.0178
2023-08-10 2023-06-30 13F FORMFACTOR COM 346375108 6,710 0 0.00 230 7.51 0.0169
2023-04-26 2023-03-31 13F FORMFACTOR COM 346375108 6,710 6,710 214 0.0166
2021-08-13 2021-06-30 13F FORMFACTOR COM 346375108 0 -4,580 -100.00 0 -100.00
2021-04-29 2021-03-31 13F FORMFACTOR COM 346375108 4,580 -1,900 -29.32 207 -25.81 0.0226
2021-01-29 2020-12-31 13F FORMFACTOR COM 346375108 6,480 6,480 279 0.0318
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.