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BIO BIO RAD LABS INC

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CL A (common), issuer CIK 12208

381 managers (395 13F filers) reported a position in BIO shares at 2026-03-31, 19,987,725 shares in all. 54 filers opened a position and 61 filers sold out during the quarter.

Managers
381
13F filers
395
New
54
Added
145
Reduced
99
Sold out
61
Shares held by filers
19,987,725

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
First Eagle Investment Management, LLCin group First Eagle Investment Manage…2,602,772$726M1.23%+32,29913F-HR/ATimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding1,807,221$504M+1,804,068Timeline
BlackRock, Inc.in group BlackRock, Inc.1,680,060$468M0.01%-88813F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,089,323$304M0.06%+12,25113F-HRTimelineGroup
ARIEL INVESTMENTS, LLC785,961$219M2.45%+21,28913F-HRTimeline
UBS Group AGgroup of 2 filers holding780,403$218M+169,140Timeline
EARNEST PARTNERS LLC588,731$164M0.68%-14,86313F-HRTimeline
STATE STREET CORPin group STATE STREET CORP559,570$156M0.01%-3413F-HRTimelineGroup
Capital World Investors450,000$125M0.02%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/444,957$124M0.01%-49213F-HRTimelineGroup
First Pacific Advisors, LP407,358$114M1.59%+5,90113F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…396,150$110M0.04%-3,05713F-HRTimelineGroup
Capital Research Global Investorsin group Capital Research Global Inves…385,579$107M0.02%-108,89313F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC364,682$102M0.01%+26,35413F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO287,912$80.3M0.07%-4,00213F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC278,835$77.7M0.03%+254,34113F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY273,931$76.4M<0.01%+87,54413F-HRTimelineGroup
PARNASSUS INVESTMENTS, LLC254,305$70.9M0.21%+2,16513F-HRTimeline
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…226,070$63M0.74%013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP218,497$60.9M0.01%+2,32613F-HRTimelineGroup
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding217,526$60.6M+217,266Timeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co196,558$54.8M0.01%+16,16913F-HRTimelineGroup
Mawer Investment Management Ltd.188,784$52.6M0.34%-45,16213F-HRTimeline
THOMPSON SIEGEL & WALMSLEY LLC176,465$49.2M0.87%-15,49613F-HRTimeline
GW&K Investment Management, LLC174,708$48.7M0.43%-2,37513F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources170,354$47.5M0.01%+33,13713F-HRTimelineGroup
SOUTHEASTERN ASSET MANAGEMENT INC/TN/162,804$45.4M2.23%-64,82613F-HRTimeline
Gotham Asset Management, LLC152,384$42.5M0.13%+35,36613F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC148,669$41.4M0.03%+139,18913F-HRTimelineGroup
Assenagon Asset Management S.A.147,834$41.2M0.07%+145,62313F-HRTimeline
Freestone Grove Partners LP147,605$41.1M0.3%+37,08113F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp126,856$35.4M0.01%-2,49813F-HRTimelineGroup
MANGROVE PARTNERS IM, LLC126,853$35.4M2.86%013F-HRTimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.120,120$33.5M0.05%13F-HRTimelineGroup
Fisher Asset Management, LLC118,683$33.1M0.01%-12,41113F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE110,241$30.7M0.04%+3713F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.109,895$30.6M0.05%-4,03413F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding107,162$29.9M+11,941Timeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC102,800$28.6M0.04%-17,83413F-HRTimelineGroup
Boston Trust Walden Corpgroup of 2 filers holding101,688$28.3M-235,762Timeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …99,720$27.8M0.02%-22,85413F-HRTimelineGroup
Tikvah Management LLCin group Tikvah Management LLC97,834$27.3M8.45%-13,25013F-HRTimelineGroup
Hound Partners, LLCin group Hound Partners, LLC97,724$27.2M3.44%+54,45613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO99,391$26.9M<0.01%+45,27213F-HR/ATimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC94,549$26M0.01%+54,35413F-HRTimelineGroup
JNE Partners LLP92,100$25.7M10.5%013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/90,000$25.1M0.03%new13F-HRTimelineGroup
ING GROEP NV90,000$25.1M0.15%new13F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …85,965$23.9M0.04%-43,24613F-HRTimelineGroup
QVIDTVM Management LLC83,732$23.3M28.68%+24913F-HRTimeline
Natixis Investment Managersgroup of 2 filers holding82,017$22.9M+11,101Timeline
PRICE T ROWE ASSOCIATES INC /MD/74,281$20.7M<0.01%-1,99013F-HRTimeline
Hosking Partners LLP69,009$19.2M0.69%+15,04113F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP71,976$19.1M0.01%+70,71413F-HRTimelineGroup
Man Group plcin group Man Group plc67,436$18.8M0.04%+61,18513F-HRTimelineGroup
SG Americas Securities, LLC66,985$18.7M0.02%+48,02713F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC58,530$16.3M0.13%+28,93813F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding55,150$15.4M-5,400Timeline
Marathon Asset Management Ltd53,661$15M0.57%+6,36913F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC53,040$14.8M<0.01%+16,82113F-HRTimelineGroup
Select Equity Group, L.P.48,436$13.5M0.07%new13F-HRTimeline
HRT FINANCIAL LP46,556$13M0.03%new13F-HRTimeline
RHUMBLINE ADVISERS46,037$12.8M0.01%+64113F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding44,999$12.5M+1,600Timeline
Arnhold LLC42,902$12M0.88%+8,11813F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC38,989$10.9M0.02%+6,22413F-HRTimelineGroup
Amundiin group Amundi38,778$10.8M<0.01%+36,69713F-HRTimelineGroup
Swiss National Bank36,880$10.3M0.01%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.36,835$10.3M<0.01%+1,77513F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…36,444$10.2M0.08%013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc36,228$10.1M<0.01%-2,09113F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC35,894$10M<0.01%+2,78813F-HRTimelineGroup
California Public Employees Retirement …35,348$9.85M0.01%+42313F-HRTimeline
Quantinno Capital Management LP33,650$9.38M0.02%-2,58513F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP33,217$9.26M0.01%+21,65713F-HRTimelineGroup
Almitas Capital LLC30,254$8.43M1.91%new13F-HRTimeline
Nuveen, LLCin group TIAA29,417$8.2M<0.01%+73213F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.24,487$7.42M<0.01%+1,20613F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS26,326$7.34M<0.01%-46,22913F-HRTimelineGroup
WINSLOW ASSET MANAGEMENT INC24,169$6.74M1.31%-22913F-HRTimeline
SECTOR GAMMA AS23,750$6.62M1.56%013F-HRTimeline
Retirement Systems of Alabama22,289$6.21M0.02%+46713F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…21,932$6.11M0.01%+4,08213F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN20,669$5.76M<0.01%+2,57213F-HR/ATimelineGroup
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP19,450$5.42M<0.01%-45613F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC18,639$5.2M<0.01%+4,76113F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…18,372$5.12M0.01%+87213F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC18,290$5.1M0.01%new13F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC18,023$5.02M<0.01%-18813F-HR/ATimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA17,198$4.79M<0.01%+2,48713F-HRTimelineGroup
LPL Financial LLC16,240$4.53M<0.01%+94613F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…16,003$4.46M0.01%-2,63513F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …15,743$4.39M<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…15,494$4.32M<0.01%+11,06813F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC15,585$4.31M<0.01%new13F-HRTimelineGroup
Portolan Capital Management, LLCin group Portolan Capital Management, …14,173$3.95M0.21%-19,98613F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …13,344$3.72M0.01%+1,57213F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD13,074$3.64M0.01%-57413F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…12,932$3.6M0.01%+6,17513F-HRTimelineGroup
DekaBank Deutsche Girozentrale12,211$3.42M0.01%013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND11,875$3.31M<0.01%013F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP10,988$3.06M<0.01%new13F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co10,530$2.94M0.01%-4913F-HRTimelineGroup
REGIONS FINANCIAL CORPin group REGIONS FINANCIAL CORP10,048$2.8M0.02%-57513F-HRTimelineGroup
Sivik Global Healthcare LLC10,000$2.79M2.12%-2,00013F-HRTimeline
Creative Planningin group Creative Planning9,974$2.78M<0.01%+6,52513F-HRTimelineGroup
TD Asset Management Inc9,780$2.73M<0.01%+39613F-HRTimeline
Oak Thistle LLC9,320$2.6M0.25%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…8,951$2.5M0.01%+6113F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…8,271$2.31M0.01%+1,26313F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/8,228$2.29M<0.01%+29013F-HRTimelineGroup
AMALGAMATED BANK8,196$2.29M0.02%+20813F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.8,145$2.27M<0.01%+3,31513F-HRTimelineGroup
Police & Firemen's Retirement System of…8,076$2.25M0.02%013F-HRTimeline
MML INVESTORS SERVICES, LLC7,942$2.21M0.01%-2,48313F-HRTimeline
Treasurer of the State of North Carolina7,926$2.21M0.01%+16713F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson7,900$2.2M<0.01%013F-HR/ATimelineGroup
CenterBook Partners LP7,824$2.18M0.12%+4,76613F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC7,753$2.16M0.17%+4,28913F-HRTimeline
KORNITZER CAPITAL MANAGEMENT INC /KS7,726$2.15M0.05%+1,12013F-HRTimeline
Cetera Investment Advisers7,596$2.12M<0.01%+4813F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\6,969$1.94M<0.01%-7413F-HRTimelineGroup
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…6,967$1.94M0.02%-60113F-HRTimelineGroup
Quantedge Capital Pte Ltd6,940$1.93M1.06%-7,20013F-HRTimeline
OP Asset Management Ltd6,552$1.83M0.02%+3,89413F-HR/ATimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC6,411$1.79M<0.01%+21913F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…6,370$1.78M<0.01%+98913F-HRTimeline
Handelsbanken Fonder AB6,332$1.76M0.01%013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC6,086$1.7M<0.01%+63513F-HRTimelineGroup
Pavaki Capital Management LLC6,000$1.67M1.18%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…5,698$1.59M0.01%-16613F-HRTimeline
Skylands Capital, LLC5,650$1.57M0.21%+2,05013F-HRTimeline
Louisiana State Employees Retirement Sy…5,300$1.48M0.03%+30013F-HRTimeline
TUDOR INVESTMENT CORP ET AL5,161$1.44M0.01%new13F-HRTimeline
HighTower Advisors, LLC5,124$1.43M<0.01%-3,46013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM5,118$1.43M0.01%-9913F-HRTimeline
CITIGROUP INCin group CITIGROUP INC5,117$1.43M<0.01%+80813F-HRTimelineGroup
DIVERSIFIED TRUST CO4,897$1.37M0.03%-3,23713F-HRTimeline
Clear Harbor Asset Management, LLC4,598$1.28M0.09%+2,17913F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP4,589$1.28M<0.01%+23413F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC4,586$1.28M0.02%-30213F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…4,556$1.27M0.01%+613F-HRTimeline
NANO CAP NEW MILLENNIUM GROWTH FUND L P4,500$1.25M1.17%+1,75013F-HRTimeline
STATE OF MICHIGAN RETIREMENT SYSTEM4,400$1.23M0.01%+10013F-HRTimeline
FOCUSED ALPHA, LLC4,202$1.17M0.36%-113F-HRTimeline
FMR LLCin group FMR LLC4,198$1.17M<0.01%+95913F-HRTimelineGroup
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding4,161$1.16M+31Timeline
KLP KAPITALFORVALTNING AS4,100$1.14M<0.01%+12013F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp4,099$1.14M0.02%013F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…4,097$1.14M<0.01%+313F-HRTimelineGroup
Atria Investments, Inc4,034$1.12M0.01%+65913F-HRTimeline
Orion Porfolio Solutions, LLC3,922$1.09M0.01%-28513F-HRTimeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD3,900$1.09M0.03%013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…3,875$1.08M0.01%new13F-HRTimelineGroup
State of Tennessee, Department of Treas…3,796$1.06M<0.01%013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND3,746$1.04M0.01%+7713F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP3,561$993K<0.01%-35613F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\3,472$968K<0.01%+83013F-HRTimelineGroup
Koss-Olinger Consulting, LLC3,440$959K0.08%-4813F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …3,431$956K0.01%new13F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP3,344$932K0.08%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,332$929K0.03%013F-HRTimelineGroup
Summit Trail Advisors, LLC3,300$920K0.01%+87013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC3,294$918K<0.01%-18,91213F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.3,224$899K<0.01%-8013F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC3,118$869K<0.01%+1,73113F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC3,029$844K<0.01%+1913F-HRTimelineGroup
WESTPORT ASSET MANAGEMENT INC3,000$836K0.37%013F-HRTimeline
Hara Capital LLC2,986$832K0.42%+18313F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…2,938$819K<0.01%new13F-HRTimelineGroup
Pacer Advisors, Inc.2,925$815K<0.01%+3013F-HR/ATimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…2,920$814K<0.01%+34013F-HRTimelineGroup
Patriot Financial Group Insurance Agenc…2,532$706K0.04%new13F-HRTimeline
M&T Bank Corpin group M&T Bank Corp2,513$701K<0.01%+12513F-HR/ATimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC2,445$682K0.04%+1,36213F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…2,441$680K<0.01%-82113F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC2,438$680K<0.01%-17413F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC2,372$661K0.02%+6413F-HR/ATimeline
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC2,358$657K0.01%-5813F-HRTimelineGroup
&PARTNERS2,339$645K<0.01%+7613F-HRTimeline
OneDigital Investment Advisors LLC2,277$635K0.01%-18213F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS2,248$627K<0.01%-62213F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…2,233$622K0.01%+57913F-HRTimelineGroup
XPONANCE LLC2,225$620K<0.01%+52713F-HRTimeline
Empowered Funds, LLC2,168$604K<0.01%new13F-HR/ATimeline
Alamea Verwaltungs GmbH2,164$603K0.45%new13F-HRTimeline
Blackstone Inc.in group Blackstone Inc.2,162$603K<0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…2,162$603K0.01%-95413F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…2,086$581K<0.01%013F-HRTimeline
SkyView Investment Advisors, LLC1,936$540K0.07%-1213F-HRTimeline
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…1,834$511K<0.01%new13F-HRTimelineGroup
State of Alaska, Department of Revenue1,811$504K0.01%013F-HRTimeline
Frank, Rimerman Advisors LLC1,802$502K0.03%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…1,768$493K<0.01%+72113F-HRTimelineGroup
C2C Wealth Management, LLC1,715$478K0.4%013F-HRTimeline
Bridgewater Associates, LP1,684$469K<0.01%new13F-HRTimeline
NWF Advisory Services Inc.1,680$468K0.05%013F-HRTimeline
William B. Walkup & Associates, Inc.1,902$463K0.28%+4813F-HRTimeline
Aigen Investment Management, LP1,614$450K0.12%new13F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG1,581$441K<0.01%013F-HRTimelineGroup