FormFactor, Inc.
US ˙ NasdaqGS ˙ US3463751087

SecurityFORM / FormFactor, Inc.
InstitutionUs Bancorp \de\
Latest Disclosed Ownership856 shares
Latest Disclosed Value $ 83,024
Us Bancorp \de\ reports 64.12% decrease in ownership of FORM / FormFactor, Inc.

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 856 shares of FormFactor, Inc. (US:FORM) valued at $83,023 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 2,386 shares of FormFactor, Inc.. This represents a change in shares of -64.12% during the quarter. The current value of the position is $108,374 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)
2026-05-14 2026-03-31 13F FORMFACTOR COM 346375108 856 -1,530 -64.12 83 -37.59 0.0000
2026-01-30 2025-12-31 13F FORMFACTOR COM 346375108 2,386 5 0.21 133 54.65 0.0002
2025-11-12 2025-09-30 13F FORMFACTOR COM 346375108 2,381 -722 -23.27 87 -18.87 0.0001
2025-07-24 2025-06-30 13F FORMFACTOR COM 346375108 3,103 13 0.42 107 21.84 0.0001
2025-05-08 2025-03-31 13F FORMFACTOR COM 346375108 3,090 -515 -14.29 87 -44.94 0.0001
2025-02-05 2024-12-31 13F FORMFACTOR COM 346375108 3,605 204 6.00 159 1.28 0.0002
2024-10-28 2024-09-30 13F FORMFACTOR COM 346375108 3,401 1,219 55.87 156 18.18 0.0002
2024-08-07 2024-06-30 13F FORMFACTOR COM 346375108 2,182 0 0.00 132 33.33 0.0002
2024-05-08 2024-03-31 13F FORMFACTOR COM 346375108 2,182 1,826 512.92 100 607.14 0.0001
2024-02-09 2023-12-31 13F FORMFACTOR COM 346375108 356 12 3.49 15 16.67 0.0000
2023-11-03 2023-09-30 13F FORMFACTOR COM 346375108 344 -117 -25.38 12 -20.00 0.0000
2023-08-10 2023-06-30 13F FORMFACTOR COM 346375108 461 41 9.76 16 15.38 0.0000
2023-05-09 2023-03-31 13F FORMFACTOR COMMON STOCK 346375108 420 -53 -11.21 13 30.00 0.0000
2023-02-13 2022-12-31 13F FORMFACTOR COMMON STOCK 346375108 473 -2,551 -84.36 11 -86.67 0.0000
2022-10-27 2022-09-30 13F FORMFACTOR COMMON STOCK 346375108 3,024 -33 -1.08 75 -36.44 0.0002
2022-08-01 2022-06-30 13F FORMFACTOR COMMON STOCK 346375108 3,057 -100 -3.17 118 -10.61 0.0002
2022-05-11 2022-03-31 13F FORMFACTOR COMMON STOCK 346375108 3,157 -197 -5.87 132 -14.29 0.0002
2022-02-11 2021-12-31 13F FORMFACTOR COMMON STOCK 346375108 3,354 411 13.97 154 40.00 0.0002
2021-11-10 2021-09-30 13F FORMFACTOR COMMON STOCK 346375108 2,943 129 4.58 110 7.84 0.0002
2021-08-05 2021-06-30 13F FORMFACTOR COMMON STOCK 346375108 2,814 1,866 196.84 102 137.21 0.0002
2021-04-28 2021-03-31 13F FORMFACTOR COMMON STOCK 346375108 948 -4,636 -83.02 43 -82.08 0.0001
2021-02-04 2020-12-31 13F FORMFACTOR COMMON STOCK 346375108 5,584 -367 -6.17 240 61.07 0.0005
2020-11-10 2020-09-30 13F FORMFACTOR COMMON STOCK 346375108 5,951 1,011 20.47 149 2.76 0.0004
2020-08-07 2020-06-30 13F FORMFACTOR COMMON STOCK 346375108 4,940 304 6.56 145 55.91 0.0004
2020-05-13 2020-03-31 13F FORMFACTOR COMMON STOCK 346375108 4,636 -5,197 -52.85 93 -63.53 0.0003
2020-02-04 2019-12-31 13F FORMFACTOR COMMON STOCK 346375108 9,833 0 0.00 255 39.34 0.0007
2019-11-08 2019-09-30 13F FORMFACTOR COMMON STOCK 346375108 9,833 0 0.00 183 18.83 0.0005
2019-08-13 2019-06-30 13F FORMFACTOR COMMON STOCK 346375108 9,833 -4,913 -33.32 154 -35.02 0.0004
2019-05-08 2019-03-31 13F FORMFACTOR COMMON STOCK 346375108 14,746 0 0.00 237 13.94 0.0007
2019-02-13 2018-12-31 13F FORMFACTOR COMMON STOCK 346375108 14,746 0 0.00 208 2.46 0.0007
2018-10-31 2018-09-30 13F FORMFACTOR COMMON STOCK 346375108 14,746 0 0.00 203 3.57 0.0006
2018-08-08 2018-06-30 13F FORMFACTOR COMMON STOCK 346375108 14,746 0 0.00 196 -2.49 0.0006
2018-05-08 2018-03-31 13F FORMFACTOR COMMON STOCK 346375108 14,746 0 0.00 201 -12.99 0.0006
2018-02-02 2017-12-31 13F FORMFACTOR COMMON STOCK 346375108 14,746 -5,254 -26.27 231 -31.45 0.0007
2017-11-13 2017-09-30 13F FORMFACTOR COMMON STOCK 346375108 20,000 18,526 1,256.85 337 1,772.22 0.0011
2017-07-19 2017-06-30 13F FORMFACTOR COMMON STOCK 346375108 1,474 1,474 18 0.0001
2015-11-16 2015-09-30 13F FORMFACTOR COMMON STOCK 346375108 0 -14,625 -100.00 0 -100.00
2015-08-10 2015-06-30 13F FORMFACTOR COMMON STOCK 346375108 14,625 -200 -1.35 135 3.05 0.0005
2015-05-08 2015-03-31 13F FORMFACTOR COMMON STOCK 346375108 14,825 1,520 11.42 131 14.91 0.0005
2015-02-13 2014-12-31 13F FORMFACTOR COMMON STOCK 346375108 13,305 -1,590 -10.67 114 6.54 0.0004
2014-11-14 2014-09-30 13F FORMFACTOR COMMON STOCK 346375108 14,895 14,895 59.85 107 69.84 0.0004
2013-11-07 2013-09-30 13F FORMFACTOR COMMON STOCK 346375108 0 -9,318 -100.00 0 -100.00
2013-08-09 2013-06-30 13F FORMFACTOR COMMON STOCK 346375108 9,318 9,318 63 0.0003
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.