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Disclosery

QSI QUANTUM SI INC

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COM CL A (common), issuer CIK 1816431

121 managers (122 13F filers) reported a position in QSI shares at 2024-12-31, 53,650,950 shares in all. 29 filers opened a position and 20 filers sold out during the quarter.

Managers
121
13F filers
122
New
29
Added
42
Reduced
22
Sold out
20
Shares held by filers
53,650,950

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 2024

Filers in the available 13F reports with a share position at 2024-12-31, 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
ARK Investment Management LLCin group ARK Investment Management LLC8,848,650$23.9M0.2%-2,993,95913F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.8,437,647$22.8M<0.01%+1,537,52013F-HRTimelineGroup
Sumitomo Mitsui Trust Group, Inc.in group Sumitomo Mitsui Trust Group, …5,965,208$16.1M0.01%-1,582,70413F-HRTimelineGroup
Amova Asset Management Americas, Inc.in group Amova Asset Management Americ…5,965,208$16M0.17%-1,562,70413F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding5,511,698$14.9M+458,107Timeline
MORGAN STANLEYin group MORGAN STANLEY3,480,468$9.4M<0.01%+3,174,22113F-HR/ATimelineGroup
STATE STREET CORPin group STATE STREET CORP2,405,019$6.49M<0.01%+135,98113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,368,376$6.4M<0.01%+51,45513F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…1,002,873$2.71M<0.01%+958,84413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,002,130$2.71M<0.01%+759,99213F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP841,146$2.27M<0.01%+40,02613F-HRTimelineGroup
Fosun International Ltd743,935$2.01M0.63%013F-HRTimeline
UBS Group AGin group UBS Group AG592,112$1.6M<0.01%+542,94613F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC544,956$1.47M<0.01%+503,40013F-HRTimeline
GSA CAPITAL PARTNERS LLP374,278$1.01M0.07%+261,96113F-HRTimeline
Nuveen Asset Management, LLCin group TIAA319,100$862K<0.01%-245,98013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co308,021$832K<0.01%+75,66113F-HRTimelineGroup
SIMPLEX TRADING, LLC306,769$828K0.02%+280,27013F-HRTimeline
Knollwood Investment Advisory, LLC300,000$810K0.08%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC296,100$799K0.02%-110,60013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp269,807$728K<0.01%+47,40013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd245,585$663K0.06%+201,77313F-HRTimelineGroup
Shay Capital LLC216,546$585K0.14%+78,37613F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC199,999$540K<0.01%-42,45513F-HRTimelineGroup
Green Alpha Advisors, LLC158,858$429K0.34%-16,19713F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding152,683$412K+125,183Timeline
BARCLAYS PLCin group BARCLAYS PLC150,616$407K<0.01%-46,21013F-HR/ATimelineGroup
RHUMBLINE ADVISERS148,946$402K<0.01%+5,29813F-HR/ATimeline
Centiva Capital, LP143,176$387K0.01%new13F-HRTimeline
WOLVERINE TRADING, LLC111,935$373K0.01%+98,37313F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC128,584$347K<0.01%-15,20913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/111,871$302K<0.01%+13,18613F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/109,114$295K<0.01%+11,78713F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC102,398$276K<0.01%+76,50413F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC90,248$244K<0.01%+5,64613F-HRTimelineGroup
FMR LLCin group FMR LLC80,321$217K<0.01%+59,21013F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.76,080$205K<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN71,980$194K<0.01%+8,80213F-HRTimelineGroup
SG Americas Securities, LLC67,588$182K<0.01%+7,47013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…57,006$154K<0.01%-56913F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC50,837$137K<0.01%new13F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.49,790$134K<0.01%-3,75813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO44,857$121K<0.01%-18413F-HRTimelineGroup
Belvedere Trading LLC41,053$111K0.01%new13F-HRTimeline
Cambridge Investment Research Advisors,…38,867$105K<0.01%-9,35513F-HRTimeline
Invesco Ltd.in group Invesco Ltd.37,321$101K<0.01%+3,95613F-HRTimelineGroup
Red Wave Investments LLC37,000$99.9K0.03%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD36,330$98.1K<0.01%new13F-HRTimeline
Wealth Management Associates, Inc.35,050$94.6K0.04%013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …34,850$94.1K<0.01%new13F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd34,610$93.4K0.01%new13F-HRTimelineGroup
AXQ CAPITAL, LP34,067$92K0.04%new13F-HRTimeline
IQ EQ FUND MANAGEMENT (IRELAND) Ltd33,902$91.5K0.01%+7,70413F-HRTimeline
Mariner, LLCin group Mariner, LLC33,439$90.3K<0.01%+7,54013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO33,103$89.4K<0.01%013F-HRTimelineGroup
THOROUGHBRED FINANCIAL SERVICES, LLC33,000$89K0.01%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\32,560$87.9K<0.01%013F-HR/ATimelineGroup
Police & Firemen's Retirement System of…31,134$84.1K<0.01%13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC31,013$84K<0.01%+9,87713F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV30,959$83.6K<0.01%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC30,863$83.3K<0.01%-5,62113F-HR/ATimelineGroup
ProShare Advisors LLC28,204$76.2K<0.01%+9,28013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.27,870$75.2K<0.01%+17,11813F-HR/ATimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND26,084$70.4K<0.01%013F-HR/ATimeline
Guidance Point Advisors, LLC25,742$69.5K0.02%013F-HRTimeline
Sanctuary Advisors, LLC35,243$69.1K<0.01%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC23,845$64.4K<0.01%-232,84413F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…23,347$63K<0.01%+13,59213F-HRTimelineGroup
SBI Securities Co., Ltd.22,261$60.1K<0.01%13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS19,025$51.4K<0.01%new13F-HRTimelineGroup
DLK Investment Management, LLC19,000$51.3K0.02%013F-HRTimeline
Freedom Investment Management, Inc.16,465$44.5K<0.01%-74313F-HRTimeline
Bravias Capital Group, LLC20,250$40.1K0.03%13F-HRTimeline
Flagship Private Wealth, LLC14,158$38.2K0.02%013F-HRTimeline
Alpine Global Management, LLC13,785$37.2K0.01%new13F-HR/ATimeline
Procyon Advisors, LLC13,671$36.9K<0.01%013F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management13,488$36.4K<0.01%new13F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…13,384$36.1K<0.01%new13F-HR/ATimeline
Cetera Investment Advisers13,380$36.1K<0.01%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC11,742$34.5K<0.01%-65613F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA12,616$34K<0.01%+2,25413F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC12,385$33.4K<0.01%new13F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC12,064$32.6K<0.01%-25013F-HRTimeline
DUDLEY CAPITAL MANAGEMENT, LLC11,000$29.7K0.02%new13F-HRTimeline
Callan Capital, LLC10,800$29.2K<0.01%new13F-HRTimeline
Abel Hall, LLC10,432$28.2K0.02%new13F-HRTimeline
NewEdge Advisors, LLC10,250$27.7K<0.01%-24213F-HRTimeline
TriaGen Wealth Management LLC10,000$27K0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…9,906$26.7K<0.01%013F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC9,632$26K<0.01%new13F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc9,294$25K<0.01%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…9,053$24.4K<0.01%+8,26013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC7,516$20.3K<0.01%+6,95013F-HRTimeline
Cubist Systematic Strategies, LLC7,305$19.7K<0.01%-33,75613F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…7,257$19.6K<0.01%013F-HR/ATimeline
MARK SHEPTOFF FINANCIAL PLANNING, LLC7,000$18.9K0.01%new13F-HRTimeline
Point72 (DIFC) Ltd6,575$17.8K<0.01%-1,52413F-HRTimeline
Federation des caisses Desjardins du Qu…6,150$16.6K<0.01%+6,10013F-HRTimeline
PRINCIPAL SECURITIES, INC.in group PRINCIPAL FINANCIAL GROUP INC4,912$13.3K<0.01%+3,77513F-HRTimelineGroup
PINNEY & SCOFIELD, INC.3,680$9.94K0.01%13F-HRTimeline
Sterling Capital Management LLC3,401$9.18K<0.01%+3,09413F-HRTimeline
AMALGAMATED BANK3,170$9K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC2,568$7K<0.01%+2,13213F-HRTimelineGroup
Archer Investment Corp2,000$5.4K<0.01%013F-HRTimeline
TUCKER ASSET MANAGEMENT LLC1,470$3.97K<0.01%new13F-HRTimeline
Avior Wealth Management, LLC1,357$3.66K<0.01%013F-HRTimeline
Caitong International Asset Management …1,228$3.32K<0.01%13F-HR/ATimeline
Steward Partners Investment Advisory, L…1,000$2.7K<0.01%-1,00013F-HRTimeline
TD Waterhouse Canada Inc.800$2.15K<0.01%+50013F-HRTimeline
Twin Tree Management, LP758$2.05K<0.01%new13F-HRTimeline
Capital Advisors, Ltd. LLC561$2K<0.01%new13F-HRTimeline
Allworth Financial LP836$1.99K<0.01%013F-HRTimeline
CoreCap Advisors, LLC475$1.28K<0.01%+23413F-HRTimeline
Eagle Bay Advisors LLC277$748<0.01%013F-HRTimeline
Medallion Wealth Advisors, LLC256$692<0.01%13F-HRTimeline
Parkside Financial Bank & Trust150$405<0.01%new13F-HRTimeline
FSA Wealth Management LLC100$270<0.01%013F-HRTimeline
American Capital Advisory, LLC100$270<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…26$70<0.01%new13F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…6$16<0.01%new13F-HRTimelineGroup
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.