FormFactor, Inc.
US ˙ NasdaqGS ˙ US3463751087

SecurityFORM / FormFactor, Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership1,155 shares
Latest Disclosed Value $ 42
Shell Asset Management Co reports 64.91% decrease in ownership of FORM / FormFactor, Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 1,155 shares of FormFactor, Inc. (US:FORM) valued at $42,065 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 3,292 shares of FormFactor, Inc.. The current value of the position is $145,553 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)
2025-11-07 2025-09-30 13F FORMFACTOR COM 346375108 1,155 -2,137 -64.91 0 0.0042
2025-07-23 2025-06-30 13F FORMFACTOR COM 346375108 3,292 -364 -9.96 0 0.0039
2025-05-14 2025-03-31 13F FORMFACTOR COM 346375108 3,656 11 0.30 0 0.0049
2025-02-14 2024-12-31 13F FORMFACTOR COM 346375108 3,645 0 0.00 0 0.0070
2024-11-07 2024-09-30 13F FORMFACTOR COM 346375108 3,645 3,645 0 0.0074
2017-04-26 2017-03-31 13F FORMFACTOR COM 346375108 0 -53,783 -100.00 0 -100.00
2017-01-10 2016-12-31 13F FORMFACTOR COM 346375108 53,783 -470 -0.87 602 2.21 0.0163
2016-10-28 2016-09-30 13F FORMFACTOR COM 346375108 54,253 54,253 589 0.0141
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.