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Ken Griffin's FormFactor, Inc. (FORM) position

Yes: as of Q1 2026, Ken Griffin holds 201K shares of FORM worth $19M (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
$19M
Shares held
201K
% of portfolio
0.0%
Est. average buy price (i)
$41.70
Quarter-end price
$96.99

Estimated trade prices

Average price in quarters with purchases
$34.89
Average prices in quarters with sales
  • Q4 2023: $36.58 (18K shares sold)
  • Q3 2023: $33.62 (367K shares sold)
  • Q2 2023: $29.88 (28K shares sold)
  • Q4 2021: $40.94 (17K shares sold)
  • Q3 2021: $37.21 (126K shares sold)

FORM price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$20$50$100$15020222023202420252026Sold 126K shares (79.4%) · Q3 2021. Average closing price $37.21 · Price range $33.84–$40.42126KsharessoldSold 17K shares (51.3%) · Q4 2021. Average closing price $40.94 · Price range $34.79–$46.0417KsharessoldNew position of 22K shares · Q2 2022. Average closing price $38.58 · Price range $34.18–$42.7322KsharespurchasedAdded 166K shares (748.1%) · Q3 2022. Average closing price $32.47 · Price range $25.05–$40.74166KsharespurchasedAdded 66K shares (35.0%) · Q4 2022. Average closing price $23.31 · Price range $18.19–$28.0666KsharespurchasedAdded 200K shares (78.8%) · Q1 2023. Average closing price $28.65 · Price range $21.92–$32.59200KsharespurchasedSold 28K shares (6.1%) · Q2 2023. Average closing price $29.88 · Price range $26.56–$34.2228KsharessoldSold 367K shares (86.3%) · Q3 2023. Average closing price $33.62 · Price range $30.10–$37.16367KsharessoldSold 18K shares (30.5%) · Q4 2023. Average closing price $36.58 · Price range $31.70–$42.0118KsharessoldNew position of 20K shares · Q3 2024. Average closing price $49.90 · Price range $40.90–$62.2220KsharespurchasedAdded 31K shares (153.2%) · Q4 2024. Average closing price $42.98 · Price range $37.74–$48.7231KsharespurchasedNew position of 54K shares · Q2 2025. Average closing price $30.37 · Price range $23.18–$35.2654KsharespurchasedAdded 52K shares (95.1%) · Q3 2025. Average closing price $32.19 · Price range $27.62–$37.7052KsharespurchasedAdded 87K shares (82.2%) · Q4 2025. Average closing price $50.39 · Price range $38.14–$59.2887KsharespurchasedAdded 8K shares (4.1%) · Q1 2026. Average closing price $86.06 · Price range $59.19–$108.078Ksharespurchased← Earlier —1 purchase
Average closing price · filing quarter
$86.06
Price range · filing quarter
$59.19 – $108.07
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +8K +$677K +4.1% 201K May 15, 2026
Q4 2025 Added +87K +$4.4M +82.2% 193K Feb 17, 2026
Q3 2025 Added +52K +$1.7M +95.1% 106K Nov 14, 2025
Q2 2025 New +54K +$1.6M – 54K Aug 14, 2025
Q4 2024 Added +31K +$1.3M +153.2% 52K Feb 14, 2025
Q3 2024 New +20K +$1.0M – 20K Nov 14, 2024
Q4 2023 Reduced −18K −$652K −30.5% 41K Feb 14, 2024
Q3 2023 Reduced −367K −$12M −86.3% 58K Nov 14, 2023
Q2 2023 Reduced −28K −$827K −6.1% 425K Aug 14, 2023
Q1 2023 Added +200K +$5.7M +78.8% 453K May 15, 2023
Q4 2022 Added +66K +$1.5M +35.0% 253K Feb 14, 2023
Q3 2022 Added +166K +$5.4M +748.1% 188K Nov 14, 2022
Q2 2022 New +22K +$854K – 22K Aug 15, 2022
Q4 2021 Reduced −17K −$683K −51.3% 16K Feb 14, 2022
Q3 2021 Reduced −126K −$4.7M −79.4% 33K Nov 15, 2021
Q2 2021 Added +88K +$3.5M +124.0% 158K Aug 16, 2021
Q1 2021 First covered – – – 71K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
17 grouped rows from 17 quarters

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Common questions

Does Ken Griffin own FORM?

Yes. As of Q1 2026, Ken Griffin disclosed 201K shares of FORM, worth $19M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy FORM?

Ken Griffin held FORM since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell FORM?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in FORM. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of FORM does Ken Griffin own?

Ken Griffin disclosed 201K shares of FORM as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for FORM?

Ken Griffin's estimated average buy price for FORM is $41.70, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.