FormFactor, Inc.
US ˙ NasdaqGS ˙ US3463751087

SecurityFORM / FormFactor, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership21,039 shares
Latest Disclosed Value $ 2,040,582
Stifel Financial Corp reports 17.80% decrease in ownership of FORM / FormFactor, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 21,039 shares of FormFactor, Inc. (US:FORM) valued at $2,040,573 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 25,595 shares of FormFactor, Inc.. This represents a change in shares of -17.80% during the quarter. The current value of the position is $2,663,643 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)
2026-05-12 2026-03-31 13F FORMFACTOR COM 346375108 21,039 -4,556 -17.80 2,041 42.96 0.0004
2026-02-13 2025-12-31 13F FORMFACTOR COM 346375108 25,595 9,433 58.37 1,428 142.69 0.0013
2025-11-12 2025-09-30 13F FORMFACTOR COM 346375108 16,162 838 5.47 589 11.57 0.0005
2025-08-14 2025-06-30 13F FORMFACTOR COM 346375108 15,324 -4,758 -23.69 527 -7.22 0.0005
2025-05-14 2025-03-31 13F FORMFACTOR COM 346375108 20,082 -9,036 -31.03 568 -55.66 0.0006
2025-02-13 2024-12-31 13F FORMFACTOR COM 346375108 29,118 5,151 21.49 1,281 16.24 0.0013
2024-11-14 2024-09-30 13F FORMFACTOR COM 346375108 23,967 -4,292 -15.19 1,102 -35.56 0.0012
2024-08-13 2024-06-30 13F FORMFACTOR COM 346375108 28,259 -2,552 -8.28 1,711 21.71 0.0019
2024-05-14 2024-03-31 13F FORMFACTOR COM 346375108 30,811 -1,845 -5.65 1,406 3.16 0.0016
2024-02-12 2023-12-31 13F FORMFACTOR COM 346375108 32,656 2,936 9.88 1,362 31.21 0.0017
2023-11-13 2023-09-30 13F FORMFACTOR COM 346375108 29,720 -4,897 -14.15 1,038 -12.33 0.0015
2023-08-14 2023-06-30 13F FORMFACTOR COM 346375108 34,617 -3,970 -10.29 1,185 -3.58 0.0016
2023-05-12 2023-03-31 13F FORMFACTOR COM 346375108 38,587 1,904 5.19 1,229 50.67 0.0018
2023-02-13 2022-12-31 13F FORMFACTOR COM 346375108 36,683 -12,704 -25.72 815 -34.11 0.0012
2022-11-14 2022-09-30 13F FORMFACTOR COM 346375108 49,387 -10,126 -17.01 1,237 -46.31 0.0020
2022-08-15 2022-06-30 13F FORMFACTOR COM 346375108 59,513 -3,045 -4.87 2,304 -12.36 0.0036
2022-05-13 2022-03-31 13F FORMFACTOR COM 346375108 62,558 -7,321 -10.48 2,629 -17.69 0.0036
2022-02-14 2021-12-31 13F FORMFACTOR COM 346375108 69,879 888 1.29 3,194 23.99 0.0042
2021-11-15 2021-09-30 13F FORMFACTOR COM 346375108 68,991 10,783 18.52 2,576 21.39 0.0038
2021-08-13 2021-06-30 13F FORMFACTOR COM 346375108 58,208 -573 -0.97 2,122 -19.95 0.0032
2021-05-14 2021-03-31 13F FORMFACTOR COM 346375108 58,781 1,600 2.80 2,651 7.76 0.0044
2021-02-12 2020-12-31 13F FORMFACTOR COM 346375108 57,181 2,548 4.66 2,460 80.48 0.0044
2020-11-16 2020-09-30 13F FORMFACTOR COM 346375108 54,633 -8,210 -13.06 1,363 -26.04 0.0028
2020-08-14 2020-06-30 13F FORMFACTOR COM 346375108 62,843 10,519 20.10 1,843 80.69 0.0042
2020-05-14 2020-03-31 13F FORMFACTOR COM 346375108 52,324 -53,166 -50.40 1,020 -62.79 0.0028
2020-02-13 2019-12-31 13F FORMFACTOR COM 346375108 105,490 68,436 184.69 2,741 296.10 0.0057
2019-11-19 2019-09-30 13F/A-1 FORMFACTOR COM 346375108 37,054 1,696 4.80 692 24.91 0.0018
2019-11-13 2019-09-30 13F FORMFACTOR COM 346375108 37,054 1,696 692 387.9007
2019-08-14 2019-06-30 13F FORMFACTOR COM 346375108 35,358 257 0.73 554 -1.95 0.0014
2019-05-14 2019-03-31 13F FORMFACTOR COM 346375108 35,101 1,199 3.54 565 18.70 0.0016
2019-02-13 2018-12-31 13F FORMFACTOR COM 346375108 33,902 12,765 60.39 476 63.01 0.0015
2018-11-13 2018-09-30 13F FORMFACTOR COM 346375108 21,137 21,137 292 0.0008
2015-11-16 2015-09-30 13F FORMFACTOR COM 346375108 0 -28,099 -100.00 0 -100.00
2015-08-17 2015-06-30 13F/A-1 FORMFACTOR COM 346375108 28,099 475 1.72 259 5.71 0.0013
2015-08-17 2015-06-30 13F FORMFACTOR COM 346375108 28,099 259
2015-05-14 2015-03-31 13F FORMFACTOR COM 346375108 27,624 2,467 9.81 245 13.43 0.0013
2015-02-13 2014-12-31 13F FORMFACTOR COM 346375108 25,157 -967 -3.70 216 15.51 0.0012
2014-11-13 2014-09-30 13F FORMFACTOR COM 346375108 26,124 26,124 187 0.0016
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.