FormFactor, Inc.
US ˙ NasdaqGS ˙ US3463751087

SecurityFORM / FormFactor, Inc.
InstitutionAmundi
Latest Disclosed Ownership8,126 shares
Latest Disclosed Value $ 788,141
Amundi reports 9.12% increase in ownership of FORM / FormFactor, Inc.

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 8,126 shares of FormFactor, Inc. (US:FORM) valued at $788,141 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,447 shares of FormFactor, Inc.. This represents a change in shares of 9.12% during the quarter. The current value of the position is $1,024,039 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)
2026-05-15 2026-03-31 13F FORMFACTOR COM 346375108 8,126 679 9.12 788 89.88 0.0001
2026-02-17 2025-12-31 13F FORMFACTOR COM 346375108 7,447 7,447 415 0.0001
2025-08-13 2025-06-30 13F FORMFACTOR COM 346375108 0 -31,171 -100.00 0 -100.00
2025-05-15 2025-03-31 13F FORMFACTOR COM 346375108 31,171 -7,887 -20.19 787 -54.30 0.0003
2025-02-07 2024-12-31 13F FORMFACTOR COM 346375108 39,058 25,434 186.69 1,723 172.04 0.0006
2024-11-13 2024-09-30 13F FORMFACTOR COM 346375108 13,624 1,876 15.97 633 -13.29 0.0002
2024-08-14 2024-06-30 13F FORMFACTOR COM 346375108 11,748 -2,222 -15.91 731 24.36 0.0003
2024-05-15 2024-03-31 13F FORMFACTOR COM 346375108 13,970 3,927 39.10 588 50.90 0.0003
2024-02-14 2023-12-31 13F FORMFACTOR COM 346375108 10,043 -13 -0.13 389 14.41 0.0002
2023-11-14 2023-09-30 13F FORMFACTOR COM 346375108 10,056 248 2.53 341 3.34 0.0002
2023-08-14 2023-06-30 13F FORMFACTOR COM 346375108 9,808 -830 -7.80 330 3.79 0.0002
2023-05-15 2023-03-31 13F FORMFACTOR COM 346375108 10,638 10,638 318 0.0002
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.