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Disclosery

MTSR METSERA INC

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COM (common)

81 managers (81 13F filers) reported a position in MTSR shares at 2025-03-31, 54,642,693 shares in all. 79 filers opened a position and 0 filers sold out during the quarter.

Managers
81
13F filers
81
New
79
Added
0
Reduced
0
Sold out
0
Shares held by filers
54,642,693

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 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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
FMR LLCin group FMR LLC15,167,808$413M0.03%new13F-HRTimelineGroup
Alphabet Inc.in group Alphabet Inc.4,961,744$135M8.56%new13F-HRTimelineGroup
MIC Capital Management UK LLP4,539,540$124M25.18%new13F-HRTimeline
Venrock Adviser, LLC3,750,662$102M8.69%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson2,905,462$81.3M0.04%new13F-HRTimelineGroup
T. Rowe Price Investment Management, In…2,893,009$78.7M0.05%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…2,401,991$65.4M0.01%new13F-HRTimelineGroup
Alpha Wave Global, LP2,384,050$64.9M28.91%new13F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.1,814,353$49.4M<0.01%new13F-HRTimelineGroup
VIKING GLOBAL INVESTORS LPin group VIKING GLOBAL INVESTORS LP1,616,612$44M0.14%new13F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/1,557,487$42.4M0.01%new13F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC1,467,011$39.9M<0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.1,202,952$32.7M0.01%new13F-HRTimeline
Paradigm Biocapital Advisors LPin group Paradigm Biocapital Advisors …1,191,462$32.4M1.49%new13F-HRTimelineGroup
Deep Track Capital, LP1,094,408$29.8M0.96%new13F-HRTimeline
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.675,525$18.4M0.31%new13F-HRTimelineGroup
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…500,000$13.6M0.27%new13F-HRTimelineGroup
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…481,679$13.1M<0.01%new13F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC434,647$11.8M<0.01%new13F-HRTimelineGroup
Cormorant Asset Management, LP400,000$10.9M0.82%new13F-HRTimeline
JENNISON ASSOCIATES LLC355,567$9.68M0.01%new13F-HRTimeline
Woodline Partners LP300,217$8.17M0.05%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC286,207$7.79M<0.01%new13F-HRTimelineGroup
EVENTIDE ASSET MANAGEMENT, LLC250,000$6.8M0.14%new13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP248,648$6.77M<0.01%new13F-HRTimelineGroup
BRAIDWELL LP175,000$4.76M0.17%new13F-HRTimeline
Ikarian Capital, LLCin group Ikarian Capital, LLC150,000$4.08M1.33%new13F-HRTimelineGroup
Siren, L.L.C.in group Siren, L.L.C.150,000$4.08M0.23%new13F-HR/ATimelineGroup
NORGES BANK127,442$3.47M<0.01%new13F-HR/ATimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co125,282$3.41M<0.01%new13F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP122,319$3.33M<0.01%new13F-HRTimelineGroup
SILVERARC CAPITAL MANAGEMENT, LLCin group SILVERARC CAPITAL MANAGEMENT,…112,759$3.07M0.64%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG105,275$2.87M<0.01%new13F-HRTimelineGroup
TD Asset Management Inc76,824$2.09M<0.01%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC73,698$2.01M<0.01%new13F-HRTimelineGroup
EcoR1 Capital, LLC50,000$1.36M0.08%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC48,495$1.32M<0.01%new13F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC48,105$1.31M0.05%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY45,468$1.24M<0.01%new13F-HRTimelineGroup
Sofinnova Investments, Inc.36,800$1M0.08%new13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp32,494$884K<0.01%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC21,395$582K<0.01%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC20,856$568K<0.01%new13F-HR/ATimelineGroup
Nuveen, LLCin group TIAA20,317$553K<0.01%13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC19,888$541K<0.01%new13F-HR/ATimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…19,112$520K<0.01%new13F-HRTimelineGroup
RHUMBLINE ADVISERS19,105$520K<0.01%new13F-HR/ATimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC14,900$406K<0.01%new13F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\13,740$374K<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC10,851$295K<0.01%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/10,606$289K<0.01%new13F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC10,022$273K<0.01%new13F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.9,974$271K<0.01%new13F-HRTimelineGroup
SummitTX Capital, L.P.9,523$259K0.01%13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…9,342$254K<0.01%new13F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…9,126$248K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN8,193$223K<0.01%new13F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …8,154$222K<0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC7,835$213K<0.01%new13F-HR/ATimelineGroup
Corebridge Financial, Inc.in group Corebridge Financial, Inc.7,556$206K<0.01%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO7,295$199K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND4,800$131K<0.01%new13F-HR/ATimeline
SG Americas Securities, LLC4,647$126K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…3,237$88.1K<0.01%new13F-HRTimeline
STRS OHIO2,800$76.2K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,573$42.8K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,560$42.5K<0.01%new13F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,533$41.7K<0.01%new13F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,139$31K<0.01%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS800$21.8K<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.650$17.7K<0.01%new13F-HRTimelineGroup
AMALGAMATED BANK532$14K<0.01%new13F-HRTimeline
SALEM INVESTMENT COUNSELORS INC200$5.44K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.152$4.14K<0.01%new13F-HRTimeline
Sterling Capital Management LLC126$3.43K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA71$2K<0.01%new13F-HR/ATimelineGroup
Arax Advisory Partners30$817<0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP25$700<0.01%new13F-HR/ATimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…17$463<0.01%new13F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC9$245<0.01%new13F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0new13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.