FORM Institutional Ownership & Shareholders
FORMFACTOR INC (FORM) is currently held by 505 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $11.03B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of FORM tracked by InsiderSet, reporting ownership valued at approximately $1.68B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $917.70M, representing an estimated loss of -45.27% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 50% of the total disclosed FORM value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Earnest Partners Llc, and several other long-term asset managers with concentrated positions in FORMFACTOR INC (FORM).
This page ranks the largest institutional FORM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
505
Total Reported Value
$11.03B
Largest Holder
Blackrock, Inc.
Largest Position
$1.68B
Insider Transactions (90d)
25
Latest Filing Quarter
Q2 2026
New Institutional Positions
103
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 10,484,409 | $1,676,771,596 | $917,700,320 | -$759,071,276 | -45.27% | |
| Vanguard Portfolio Management Llc | 0.04% | 5,242,203 | $838,385,526 | $458,850,029 | -$379,535,497 | -45.27% | |
| Earnest Partners Llc | 2.17% | 3,763,214 | $601,850,815 | $329,394,121 | -$272,456,694 | -45.27% | |
| Vanguard Capital Management Llc | 0.01% | 3,515,254 | $562,194,572 | $307,690,183 | -$254,504,389 | -45.27% | |
| State Street Corp | 0.01% | 2,581,477 | $412,855,617 | $225,956,682 | -$186,898,935 | -45.27% | |
| Polar Capital Holdings Plc | 0.97% | 2,146,098 | $343,225,453 | $187,847,958 | -$155,377,495 | -45.27% | |
| Geode Capital Management, Llc | 0.02% | 1,833,001 | $294,523,633 | $160,442,578 | -$134,081,055 | -45.52% | |
| Bank Of America Corp | 0.02% | 1,783,638 | $285,257,225 | $156,121,834 | -$129,135,391 | -45.27% | |
| Primecap Management Co/Ca/ | 0.16% | 1,690,114 | $270,299,932 | $147,935,678 | -$122,364,254 | -45.27% | |
| Invesco Ltd. | 0.02% | 1,578,533 | $252,454,784 | $138,168,993 | -$114,285,791 | -45.27% | |
| Dimensional Fund Advisors Lp | 0.04% | 1,418,910 | $226,842,562 | $124,197,192 | -$102,645,370 | -45.25% | |
| Sei Investments Co | 0.19% | 1,343,056 | $214,794,999 | $117,557,692 | -$97,237,307 | -45.27% | |
| Jane Street Group, Llc | 0.13% | 1,309,873 | $209,487,988 | $114,653,184 | -$94,834,804 | -45.27% | |
| Fuller & Thaler Asset Management, Inc. | 0.52% | 1,184,611 | $189,454,834 | $103,689,001 | -$85,765,833 | -45.27% | |
| Norges Bank | 0.02% | 1,024,043 | $163,775,197 | $89,634,484 | -$74,140,713 | -45.27% | |
| Morgan Stanley | 0.01% | 899,947 | $143,928,819 | $78,772,361 | -$65,156,458 | -45.27% | |
| Alliancebernstein L.P. | 0.05% | 1,457,060 | $141,320,249 | $127,536,462 | -$13,783,787 | -9.75% | |
| Charles Schwab Investment Management Inc | 0.02% | 750,027 | $119,951,818 | $65,649,863 | -$54,301,955 | -45.27% | |
| Price T Rowe Associates Inc | 0.01% | 721,754 | $115,431,000 | $63,175,128 | -$52,255,872 | -45.27% | |
| Tremblant Capital Group | 3.28% | 713,450 | $114,102,059 | $62,448,279 | -$51,653,781 | -45.27% | |
| Millennium Management Llc | 0.07% | 670,867 | $107,291,759 | $58,720,989 | -$48,570,770 | -45.27% | |
| Goldman Sachs Group Inc | 0.01% | 661,399 | $105,777,542 | $57,892,254 | -$47,885,288 | -45.27% | |
| Pictet Asset Management Holding Sa | 0.10% | 653,999 | $104,334,020 | $57,244,532 | -$47,089,488 | -45.13% | |
| Bank Of New York Mellon Corp | 0.02% | 649,307 | $103,843,657 | $56,833,842 | -$47,009,815 | -45.27% | |
| Nuveen, Llc | 0.02% | 649,293 | $103,841,429 | $56,832,616 | -$47,008,813 | -45.27% | |
| Reinhart Partners, Llc. | 2.40% | 659,667 | $98,494,880 | $57,740,653 | -$40,754,227 | -41.38% | |
| T. Rowe Price Investment Management, Inc. | 0.06% | 592,746 | $94,798,000 | $51,883,057 | -$42,914,943 | -45.27% | |
| Northern Trust Corp | 0.01% | 588,018 | $94,041,719 | $51,469,216 | -$42,572,503 | -45.27% | |
| Needham Investment Management Llc | 2.64% | 547,500 | $87,561,675 | $47,922,675 | -$39,639,000 | -45.27% | |
| Vanguard Fiduciary Trust Co | 0.02% | 504,235 | $80,642,304 | $44,135,690 | -$36,506,614 | -45.27% | |
| Hrt Financial Lp | 0.14% | 489,065 | $78,216,000 | $42,807,859 | -$35,408,141 | -45.27% | |
| Gf Fund Management Co. Ltd. | 0.92% | 475,964 | $71,066,185 | $41,661,129 | -$29,405,056 | -41.38% | |
| Ameriprise Financial Inc | 0.01% | 435,956 | $69,722,444 | $38,159,229 | -$31,563,215 | -45.27% | |
| Two Sigma Investments, Lp | 0.05% | 425,688 | $68,080,282 | $37,260,471 | -$30,819,811 | -45.27% | |
| D. E. Shaw & Co., Inc. | 0.04% | 421,377 | $67,390,823 | $36,883,129 | -$30,507,694 | -45.27% | |
| Bessemer Group Inc | 0.09% | 414,090 | $66,225,000 | $36,245,298 | -$29,979,702 | -45.27% | |
| Principal Financial Group Inc | 0.03% | 413,690 | $66,161,442 | $36,210,286 | -$29,951,156 | -45.27% | |
| Capital World Investors | 0.01% | 411,030 | $65,736,028 | $35,977,456 | -$29,758,572 | -45.27% | |
| Natixis Advisors, Llc | 0.07% | 393,987 | $63,010,000 | $34,485,682 | -$28,524,318 | -45.27% | |
| Susquehanna International Group, Llp | 0.06% | 389,826 | $62,344,872 | $34,121,470 | -$28,223,402 | -45.27% | |
| Massachusetts Financial Services Co | 0.02% | 381,320 | $60,984,508 | $33,376,940 | -$27,607,568 | -45.27% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.11% | 378,075 | $60,465,535 | $33,092,905 | -$27,372,630 | -45.27% | |
| Arrowstreet Capital, Limited Partnership | 0.03% | 376,376 | $60,193,814 | $32,944,191 | -$27,249,623 | -45.27% | |
| Royal Bank Of Canada | 0.01% | 334,072 | $53,428,000 | $29,241,322 | -$24,186,678 | -45.27% | |
| Fisher Asset Management, Llc | 0.01% | 313,652 | $50,162,363 | $27,453,960 | -$22,708,403 | -45.27% | |
| Jones Financial Companies Lllp | 0.02% | 371,323 | $48,554,212 | $32,501,902 | -$16,052,310 | -33.06% | |
| Ubs Group Ag | 0.01% | 296,102 | $47,355,593 | $25,917,808 | -$21,437,785 | -45.27% | |
| Renaissance Technologies LLC | Jim Simons | 0.07% | 295,568 | $47,270,190 | $25,871,067 | -$21,399,123 | -45.27% |
| Select Equity Group, L.P. | 0.24% | 285,686 | $45,689,762 | $25,006,096 | -$20,683,666 | -45.27% | |
| Public Sector Pension Investment Board | 0.11% | 267,868 | $42,840,129 | $23,446,486 | -$19,393,643 | -45.27% |
Frequently asked questions about FORM
Who are the largest institutional holders of FORM?
The largest institutional holders of FORM reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Portfolio Management Llc, Earnest Partners Llc, Vanguard Capital Management Llc, and State Street Corp. InsiderSet ranks institutional holders by their latest reported FORM position.
What is FORM institutional ownership?
This page tracks FORM positions reported by institutional investment managers through SEC Form 13F. FORMFACTOR INC (FORM) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own FORM?
InsiderSet currently tracks 505 institutional managers reporting FORM holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of FORM shareholders.
How much FORM stock do institutions own?
Institutional investment managers disclosed approximately $11.03B in FORM holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was FORM institutional ownership last updated?
The latest FORM institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional FORM holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its FORM position after the reporting date.
Are institutions buying or selling FORM?
Institutional buying and selling can be analyzed by comparing FORM positions across consecutive 13F reporting periods. InsiderSet's FORM Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View FORM ownership changes.
How has FORM institutional ownership changed over time?
InsiderSet tracks FORM institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.