Jane Street’s FormFactor FORM Stock Holding History

Jane Street’s Portfolio FORM Stock Details FORM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$89.8M	Buy	925,617 +807,083	+681%	+$69.5M	0.01%	693
2025 Q4	$6.61M	Sell	118,534 -20,425	-15%	-$1.03M	﹤0.01%	2829
2025 Q3	$5.06M	Sell	138,959 -34,404	-20%	-$1.11M	﹤0.01%	3400
2025 Q2	$5.97M	Sell	173,363 -35,761	-17%	-$1.09M	﹤0.01%	2773
2025 Q1	$5.92M	Buy	209,124 +180,617	+634%	+$6.64M	﹤0.01%	2686
2024 Q4	$1.25M	Sell	28,507 -134,062	-82%	-$5.76M	﹤0.01%	4959
2024 Q3	$7.48M	Buy	162,569 +20,638	+15%	+$1.03M	﹤0.01%	2266
2024 Q2	$8.59M	Buy	141,931 +105,987	+295%	+$5.53M	﹤0.01%	2214
2024 Q1	$1.64M	Sell	35,944 -20,220	-36%	-$842K	﹤0.01%	4484
2023 Q4	$2.34M	Buy	56,164 +42,999	+327%	+$1.57M	﹤0.01%	4050
2023 Q3	$460K	Buy	13,165 +1,407	+12%	+$47.3K	﹤0.01%	6423
2023 Q2	$402K	Sell	11,758 -8,944	-43%	-$267K	﹤0.01%	6650
2023 Q1	$659K	Buy	+20,702	New	+$593K	﹤0.01%	5823
2022 Q4	–	Sell	-20,592	Closed	-$516K	–	9426
2022 Q3	$516K	Buy	20,592 +12,970	+170%	+$421K	﹤0.01%	6635
2022 Q2	$295K	Buy	+7,622	New	+$294K	﹤0.01%	7630
2021 Q4	–	Sell	-6,566	Closed	-$269K	–	10300
2021 Q3	$245K	Sell	6,566 -2,448	-27%	-$91.1K	﹤0.01%	8545
2021 Q2	$328K	Sell	9,014 -10,749	-54%	-$424K	﹤0.01%	7994
2021 Q1	$892K	Buy	19,763 +14,916	+308%	+$678K	﹤0.01%	5672
2020 Q4	$209K	Buy	+4,847	New	+$175K	﹤0.01%	6902
2014 Q4	–	Sell	-12,985	Closed	-$93K	–	2643
2014 Q3	$93K	Sell	12,985 -16,446	-56%	-$122K	﹤0.01%	2365
2014 Q2	$245K	Buy	+29,431	New	+$195K	﹤0.01%	2011
2013 Q4	–	Sell	-11,050	Closed	-$76K	–	2527
2013 Q3	$76K	Sell	11,050 -800	-7%	-$5.44K	﹤0.01%	2575
2013 Q2	$80K	Buy	+11,850	New	+$64.9K	﹤0.01%	2478

Other funds holding FORM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

EARNEST Partners Atlanta, Georgia $24.3B AUM 34.41% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

PCH

Polar Capital Holdings London, United Kingdom $28.2B AUM 115.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

SEI Investments Oaks, Pennsylvania $108B AUM 26.14% 1-Year Est. Return

Jane Street's FORM Position: Q1 2026 in Review

Jane Street increased its FormFactor (FORM) stake by 681% in Q1 2026, buying an estimated $69.5M and bringing the position to 925,617 shares worth $89.8M. The position accounts for 0.01% of the portfolio, ranked #693.

Jane Street first reported a position in FORM in Q2 2013 and has held it in 23 quarters since. 393 funds tracked by Wall St. Rank hold FORM as of Q1 2026.

Jane Street held 925,617 shares of FormFactor worth $89.8M as of Q1 2026.
Jane Street bought 807,083 FormFactor shares in Q1 2026, an estimated $69.5M.
FormFactor made up 0.01% of Jane Street's portfolio in Q1 2026, its #693 holding.
Jane Street first reported a position in FormFactor in Q2 2013 and has held it in 23 quarters since.
393 funds tracked by Wall St. Rank held FormFactor as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.