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Disclosery

FORM FORMFACTOR INC

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Stock (common), issuer CIK 1039399

329 managers (335 13F filers) reported a position in FORM shares at 2025-12-31, 76,022,062 shares in all. 82 filers opened a position and 30 filers sold out during the quarter.

Managers
329
13F filers
335
New
82
Added
101
Reduced
106
Sold out
30
Shares held by filers
76,022,062

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.11,569,639$645M0.01%+333,49413F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding10,231,563$571M-77,501Timeline
EARNEST PARTNERS LLC5,774,992$322M1.38%-172,09613F-HRTimeline
STATE STREET CORPin group STATE STREET CORP2,869,544$160M0.01%-48,05013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/2,516,390$140M0.01%-16,95013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY2,271,562$127M0.01%+1,127,14613F-HR/ATimelineGroup
REINHART PARTNERS, LLC.2,152,348$120M3.6%-252,50613F-HRTimeline
PRIMECAP MANAGEMENT CO/CA/2,081,246$116M0.09%-243,36813F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,885,847$105M0.01%+7,15013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,722,259$96.1M0.02%-448,70813F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO1,685,072$94M0.09%+44,92813F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.1,414,688$78.9M0.02%-982,47313F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…1,369,024$76.4M0.02%-762,00613F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC1,316,050$73.4M0.02%+194,82513F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC1,256,545$70.1M0.04%+1,234,48813F-HRTimeline
ROYCE & ASSOCIATES LP1,157,891$64.6M0.65%-310,84213F-HRTimeline
FULLER & THALER ASSET MANAGEMENT, INC.1,084,528$60.5M0.2%new13F-HR/ATimeline
Channing Capital Management, LLC1,000,729$55.8M1.44%+536,44813F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/964,578$53.8M0.01%+308,82613F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co951,728$53.1M0.01%+3,61313F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC884,727$49.4M0.01%+372,30613F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP824,386$46M0.01%-41,50613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp751,352$41.9M0.01%-674,00313F-HRTimelineGroup
Nuveen, LLCin group TIAA705,927$39.4M0.01%+535,36313F-HRTimelineGroup
NEEDHAM INVESTMENT MANAGEMENT LLCin group NEEDHAM INVESTMENT MANAGEMENT…694,500$38.7M2.45%-45,50013F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …601,763$33.6M0.02%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA586,649$32.7M0.01%-274,73513F-HRTimelineGroup
NORGES BANK563,841$31.5M<0.01%new13F-HRTimeline
Assenagon Asset Management S.A.562,769$31.4M0.05%+446,61513F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC562,692$31.4M0.03%-84,20413F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC562,042$31.4M0.05%-152,03913F-HRTimelineGroup
WESTFIELD CAPITAL MANAGEMENT CO LP449,604$25.1M0.1%-577,05313F-HRTimeline
UBS Group AGgroup of 2 filers holding437,156$24.4M+85,252Timeline
Fisher Asset Management, LLC436,045$24.3M0.01%+293,74613F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.430,087$24M0.04%+314,97113F-HRTimelineGroup
Select Equity Group, L.P.426,819$23.8M0.11%-240,59313F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers418,631$23.4M0.03%+52,23513F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding370,395$20.7M-2,914Timeline
T. Rowe Price Investment Management, In…359,479$20.1M0.01%+359,30813F-HR/ATimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC358,786$20M0.01%-55,58613F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.332,927$18.6M<0.01%+20,05213F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC323,429$18M0.06%-65,02013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN315,252$17.6M<0.01%+30,32713F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO313,161$17.5M<0.01%+41,62613F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources287,572$16M<0.01%+271,22413F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…269,222$15M0.03%-31,94713F-HRTimelineGroup
Public Sector Pension Investment Board268,329$15M0.05%-32,41513F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND260,833$14.5M0.02%+126,94613F-HRTimeline
PINNACLE ASSOCIATES LTD239,778$13.4M0.17%-16,41913F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\217,954$12.2M<0.01%-49,15013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC204,768$11.4M0.01%+36,80813F-HRTimelineGroup
RHUMBLINE ADVISERS204,352$11.4M0.01%-15,16313F-HRTimeline
Connor, Clark & Lunn Investment Managem…202,681$11.3M0.03%+42,63413F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc202,151$11.3M<0.01%-3,68013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding198,535$11.1M-40,117Timeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC193,009$10.8M0.01%+87,09913F-HRTimelineGroup
PEREGRINE CAPITAL MANAGEMENT LLC181,590$10.1M0.31%-26,12813F-HRTimeline
SG Americas Securities, LLC175,432$9.79M0.01%+161,49413F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC175,136$9.77M<0.01%+13,74813F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…171,055$9.54M0.02%+118,55513F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …158,974$9.41M0.02%-81,03613F-HRTimelineGroup
Swiss National Bank152,100$8.48M0.01%+2,70013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC136,939$7.79M<0.01%-86,19113F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC135,443$7.56M0.01%+57,65613F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC122,738$6.85M<0.01%+12,28913F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC118,534$6.61M0.01%-20,42513F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding113,753$6.35M-365,783Timeline
HERALD INVESTMENT MANAGEMENT Ltd108,300$6.04M0.79%-10,00013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS95,926$5.35M<0.01%-290,26313F-HRTimelineGroup
Madison Asset Management, LLCin group Madison Asset Management, LLC95,562$5.33M0.06%-54,05713F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co94,020$5.24M0.01%-51513F-HRTimelineGroup
Trexquant Investment LP87,107$4.86M0.04%new13F-HRTimeline
Pier Capital, LLC86,298$4.81M0.77%new13F-HRTimeline
ExodusPoint Capital Management, LP84,215$4.7M0.05%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC82,369$4.59M<0.01%-30,80913F-HRTimelineGroup
ALGERT GLOBAL LLC79,780$4.45M0.07%-102,59113F-HR/ATimeline
STATE OF WISCONSIN INVESTMENT BOARD73,385$4.09M0.01%-9,63113F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…73,300$4.09M<0.01%+1,73313F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC72,739$4.06M0.04%new13F-HRTimelineGroup
Informed Momentum Co LLC70,554$3.94M0.44%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP68,653$3.83M<0.01%new13F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC67,898$3.78M0.01%new13F-HRTimelineGroup
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …61,400$3.42M0.04%-10,18313F-HRTimelineGroup
SORA INVESTORS LLC60,699$3.39M0.29%-52,83913F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.60,055$3.35M<0.01%-448,75213F-HRTimelineGroup
HARBOR CAPITAL ADVISORS, INC.54,648$3.05M0.24%-19,57513F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…53,265$2.97M0.01%-2,36713F-HRTimelineGroup
PDT Partners, LLC51,112$2.85M0.18%-20,06213F-HRTimeline
TUDOR INVESTMENT CORP ET AL50,741$2.83M0.02%new13F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC50,288$2.81M0.01%-2,39913F-HRTimelineGroup
NOMURA ASSET MANAGEMENT INTERNATIONAL I…in group NOMURA ASSET MANAGEMENT CO LTD49,966$2.79M<0.01%13F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC48,655$2.71M0.02%+8,13113F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…44,548$2.48M<0.01%+2,07813F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…44,307$2.47M0.01%-32,06913F-HRTimelineGroup
Creative Planningin group Creative Planning44,167$2.46M<0.01%+14,19713F-HRTimelineGroup
COMERICA BANK43,653$2.44M0.01%-39,27613F-HRTimeline
State of Tennessee, Department of Treas…34,275$2.42M0.01%+10,41813F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…42,793$2.39M0.01%-3,03913F-HRTimelineGroup
State of Alaska, Department of Revenue42,187$2.35M0.03%+58613F-HRTimeline
Cetera Investment Advisers40,980$2.29M<0.01%-1,05313F-HRTimeline
Linden Thomas Advisory Services, LLC39,800$2.22M0.23%-54613F-HRTimeline
Illinois Municipal Retirement Fund38,796$2.16M0.03%-1,10613F-HRTimeline
Verition Fund Management LLC38,775$2.16M0.01%-3,29713F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …37,179$2.08M<0.01%-94913F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…36,192$2.02M<0.01%-1813F-HRTimelineGroup
Louisiana State Employees Retirement Sy…35,500$1.98M0.03%+10013F-HRTimeline
Polymer Capital Management (US) LLC35,319$1.97M0.25%-86,68113F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.35,005$1.95M<0.01%+16,38913F-HRTimelineGroup
HRT FINANCIAL LP33,849$1.89M0.01%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson32,869$1.83M<0.01%013F-HRTimelineGroup
&PARTNERS31,645$1.77M0.01%-2,33313F-HRTimeline
Mirador Capital Partners LP31,374$1.75M0.24%-5,47313F-HRTimeline
Jackson Creek Investment Advisors LLC30,547$1.7M0.5%new13F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC21,060$1.67M0.02%-2,83813F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.29,207$1.63M0.25%new13F-HRTimeline
CAPITAL FUND MANAGEMENT S.A.28,652$1.6M0.02%+12,09913F-HRTimeline
PARADIGM CAPITAL MANAGEMENT INC/NY27,900$1.56M0.07%-150,00013F-HRTimeline
CastleKnight Management LP27,800$1.55M0.09%new13F-HRTimeline
Handelsbanken Fonder AB26,060$1.45M<0.01%-3,70013F-HRTimeline
SANDLER CAPITAL MANAGEMENT26,019$1.45M0.65%new13F-HRTimeline
Bridgewater Associates, LP25,979$1.45M0.01%new13F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP25,595$1.43M<0.01%+9,43313F-HRTimelineGroup
Holocene Advisors, LP24,910$1.39M<0.01%+2,65513F-HRTimeline
Mariner, LLCin group Mariner, LLC23,916$1.33M<0.01%-1,76213F-HRTimelineGroup
Janney Montgomery Scott LLC23,791$1.33M<0.01%-5,77113F-HRTimeline
CITIGROUP INCin group CITIGROUP INC23,380$1.3M<0.01%-5,09113F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…23,360$1.3M<0.01%-2,40313F-HRTimelineGroup
Grandeur Peak Global Advisors, LLC23,245$1.3M0.17%013F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC22,656$1.26M0.01%+6,97513F-HRTimelineGroup
AMALGAMATED BANK22,431$1.25M0.01%+1113F-HRTimeline
NorthCrest Asset Manangement, LLC19,740$1.24M0.03%+2413F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…22,052$1.23M<0.01%013F-HRTimeline
FMR LLCin group FMR LLC21,716$1.21M<0.01%+2,80213F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM21,418$1.19M0.01%-1,37813F-HRTimeline
Police & Firemen's Retirement System of…21,354$1.19M0.01%-20113F-HRTimeline
Bridgefront Capital, LLC21,280$1.19M0.3%new13F-HRTimeline
TWINBEECH CAPITAL LP21,200$1.18M0.08%new13F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP19,647$1.1M<0.01%-41,39113F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…19,368$1.08M0.01%-2,50613F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…19,191$1.07M0.01%-44813F-HRTimeline
Federation des caisses Desjardins du Qu…19,098$1.07M<0.01%-12,37213F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…16,073$1.05M<0.01%+37013F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC18,349$1.02M<0.01%+2,00813F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…18,136$1.01M<0.01%013F-HRTimeline
Sanctuary Advisors, LLC18,140$1.01M0.01%-2313F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND17,767$991K0.01%+40813F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC17,027$950K<0.01%-282,83213F-HRTimelineGroup
KLP KAPITALFORVALTNING AS16,400$915K<0.01%+90013F-HRTimeline
Quantinno Capital Management LP16,376$913K<0.01%+2,41913F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…16,210$904K<0.01%+1,19813F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT15,863$885K0.01%new13F-HRTimeline
Schonfeld Strategic Advisors LLC15,509$865K<0.01%-78013F-HRTimeline
Sunstone Asset Management, LP15,409$859K0.84%13F-HRTimeline
ProShare Advisors LLC15,147$845K<0.01%-14,18913F-HRTimeline
CONNABLE OFFICE INC14,930$833K0.08%-72813F-HRTimeline
GABELLI FUNDS LLCin group GAMCO Investors (Gabelli)14,629$816K0.01%013F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD14,100$786K<0.01%new13F-HRTimeline
Entropy Technologies, LP14,088$786K0.04%-5,06113F-HRTimeline
HighTower Advisors, LLC13,470$751K<0.01%-4,59613F-HRTimeline
CWM, LLCin group CWM, LLC13,310$742K<0.01%+11413F-HRTimelineGroup
GROUP ONE TRADING LLC12,684$708K0.02%+3,14113F-HRTimeline
Aquatic Capital Management LLC12,583$702K0.02%new13F-HRTimeline
SILVERCREST ASSET MANAGEMENT GROUP LLC12,536$699K<0.01%-5,37313F-HRTimeline
LPL Financial LLC11,895$664K<0.01%-1,58213F-HRTimeline
STRS OHIO11,700$653K<0.01%+7,70013F-HRTimeline
Maryland State Retirement & Pension Sys…11,385$635K0.01%+29913F-HRTimeline
QUADRANT CAPITAL GROUP LLC11,049$616K0.02%+3,63413F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd10,938$610K0.02%new13F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…10,874$607K<0.01%-1,22813F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC10,314$591K<0.01%+86113F-HRTimelineGroup
Blue Trust, Inc.10,346$577K0.01%-1,48913F-HRTimeline
PRAXIS INVESTMENT MANAGEMENT INC10,210$570K0.03%013F-HRTimeline
CAPTRUST FINANCIAL ADVISORS10,089$563K<0.01%+1,74813F-HRTimeline
Regal Partners Ltdin group Regal Partners Ltd10,000$558K0.03%new13F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …9,511$531K<0.01%+1,30513F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…9,330$520K<0.01%-6,83913F-HRTimelineGroup
AlphaQuest LLC9,236$515K0.03%-1,67013F-HRTimeline
Integrated Investment Consultants, LLC9,137$510K0.1%-1713F-HR/ATimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…8,860$494K0.01%+22213F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…8,739$487K<0.01%013F-HRTimeline
State of Wyoming8,594$479K0.05%+6,91413F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC8,380$467K0.04%-4,17513F-HRTimelineGroup
Welch & Forbes LLC8,000$446K0.01%013F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…7,868$439K<0.01%new13F-HRTimelineGroup
MACKENZIE FINANCIAL CORP7,581$432K<0.01%new13F-HRTimeline
Man Group plcin group Man Group plc7,516$419K<0.01%new13F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV7,509$419K<0.01%+15713F-HRTimeline
Amundiin group Amundi7,447$415K<0.01%new13F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC7,115$397K0.02%new13F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC7,069$394K<0.01%-8813F-HRTimelineGroup
EntryPoint Capital, LLC7,015$391K0.15%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…6,958$388K0.01%new13F-HRTimelineGroup
Caprock Group, LLC6,884$384K0.01%new13F-HRTimeline
Impact Partnership Wealth, LLC6,760$377K0.05%new13F-HRTimeline
EVERGREEN CAPITAL MANAGEMENT LLC6,744$376K0.01%new13F-HRTimeline
Atria Investments, Inc6,710$374K<0.01%+41313F-HRTimeline
XPONANCE LLC6,630$370K<0.01%+51913F-HRTimeline
VARCOV Co.6,547$365K0.14%13F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC6,379$356K<0.01%new13F-HRTimeline
Ameritas Investment Partners, Inc.group of 2 filers holding6,327$353K-473Timeline