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Disclosery

STRO SUTRO BIOPHARMA INC

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COMMON STOCK (common), issuer CIK 1382101

94 managers (97 13F filers) reported a position in STRO shares at 2026-06-30, 16,480,061 shares in all. 41 filers opened a position and 14 filers sold out during the quarter.

Managers
94
13F filers
97
New
41
Added
24
Reduced
18
Sold out
14
Shares held by filers
16,480,061

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
PERCEPTIVE ADVISORS LLCin group PERCEPTIVE ADVISORS LLC1,304,846$43.3M0.67%+589,53913F-HRTimelineGroup
BVF INC/ILin group BVF INC/IL1,251,788$41.6M1.06%013F-HRTimelineGroup
Affinity Asset Advisors, LLC1,172,487$38.9M1.9%+102,96813F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.1,122,655$37.3M<0.01%+889,97113F-HRTimelineGroup
SAMSARA BIOCAPITAL, LLC1,062,872$35.3M2.9%013F-HRTimeline
VANGUARD GROUP INCgroup of 4 filers holding1,001,458$33.2M+178,996Timeline
Kynam Capital Management, LP872,558$29M1.6%013F-HRTimeline
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC743,944$24.7M0.47%-57,20013F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management711,162$23.6M0.04%+245,37013F-HRTimelineGroup
EVENTIDE ASSET MANAGEMENT, LLC585,262$19.4M0.26%-130,04513F-HRTimeline
Velan Capital Investment Management LP512,160$17M10.42%013F-HRTimeline
Woodline Partners LP458,029$15.2M0.05%+58813F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC404,014$13.4M0.63%-120,42713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC389,692$12.9M<0.01%+218,30613F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC373,839$12.4M0.01%+38,02613F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC365,972$12.2M0.01%+155,59413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP305,979$10.2M<0.01%+253,86113F-HRTimelineGroup
Merck & Co., Inc.in group Merck & Co., Inc.272,351$9.04M1.72%new13F-HRTimelineGroup
ACUTA CAPITAL PARTNERS, LLC270,251$8.97M6.25%+82613F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC244,669$8.12M<0.01%new13F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.237,827$7.9M0.01%-454,28413F-HRTimelineGroup
KVP Capital Advisors, LP226,575$7.52M5.52%013F-HRTimeline
UBS Group AGin group UBS Group AG208,512$6.92M<0.01%-184,35913F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP201,688$6.7M0.01%+136,51213F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP175,246$5.82M<0.01%-47,38813F-HRTimelineGroup
Nuveen, LLCin group TIAA167,997$5.58M<0.01%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO159,627$5.32M<0.01%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC149,216$4.95M<0.01%+122,02913F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP125,933$4.18M<0.01%+92,76713F-HRTimelineGroup
Seven Fleet Capital Management LP159,118$3.79M0.63%new13F-HRTimeline
Qube Research & Technologies Ltd106,610$3.54M<0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC101,965$3.39M<0.01%-15,57213F-HRTimelineGroup
MACKENZIE FINANCIAL CORP94,767$3.15M<0.01%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC86,324$2.87M<0.01%-11,50013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.57,305$1.9M<0.01%+40,14013F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd55,879$1.86M0.04%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC55,539$1.84M<0.01%new13F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd52,169$1.73M0.02%+43,96613F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co49,302$1.64M<0.01%+38,72513F-HRTimelineGroup
Sigma Planning Corp45,020$1.49M0.04%+32,50013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp41,369$1.37M<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC36,954$1.23M<0.01%+36,81513F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/36,140$1.2M<0.01%+17,26713F-HRTimelineGroup
Fisher Asset Management, LLC35,295$1.17M<0.01%013F-HRTimeline
Elmind Capital, LP32,037$1.06M0.27%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.30,128$1M<0.01%new13F-HRTimelineGroup
Trexquant Investment LP27,636$918K0.01%-6,70713F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS27,383$909K<0.01%+27,27213F-HRTimelineGroup
RHUMBLINE ADVISERS20,628$685K<0.01%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP19,749$656K0.04%-6,07313F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO16,387$544K<0.01%new13F-HRTimelineGroup
Informed Momentum Co LLC16,232$539K0.05%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\15,563$517K<0.01%new13F-HRTimelineGroup
RBF Capital, LLC15,272$507K0.02%013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/13,597$452K<0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN13,544$450K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY12,356$410K<0.01%+1,82713F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…10,800$359K<0.01%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…9,401$312K<0.01%new13F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC9,306$309K<0.01%new13F-HRTimelineGroup
Integrated Quantitative Investments LLC8,939$297K0.05%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…8,426$280K<0.01%-76,47613F-HRTimelineGroup
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…8,368$278K0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC7,456$248K<0.01%-11,38913F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…7,313$243K<0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.7,300$242K<0.01%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…7,001$232K<0.01%new13F-HRTimeline
Persistent Asset Partners Ltd6,569$218K0.07%-84213F-HRTimeline
Verdad Advisers, LP6,400$212K0.2%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC6,234$206K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND5,600$186K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…4,704$156K<0.01%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc3,462$115K<0.01%new13F-HRTimelineGroup
State of Wyoming1,618$53.7K0.01%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,448$48.1K<0.01%new13F-HRTimelineGroup
FMR LLCin group FMR LLC1,339$44.5K<0.01%+28913F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…1,275$42.3K<0.01%new13F-HRTimelineGroup
FNY Investment Advisers, LLC1,000$33K0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…866$28.8K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA687$23K<0.01%+67513F-HRTimelineGroup
Owl Creek Wealth Partners LLC491$16.3K<0.01%013F-HRTimeline
Sterling Capital Management LLC281$9.33K<0.01%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…220$7.3K<0.01%new13F-HR/ATimeline
Quantbot Technologies LP201$6.67K<0.01%new13F-HRTimeline
Physician Wealth Advisors, Inc.182$6.04K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.100$3.32K<0.01%-1,18013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…62$2.06K<0.01%013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC44$1.46K<0.01%013F-HRTimeline
Avion Wealth46$1K<0.01%-2613F-HRTimeline
HighMark Wealth Management LLC23$763<0.01%013F-HRTimeline
Arax Advisory Partners16$531<0.01%-2513F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…2$66<0.01%013F-HRTimelineGroup
Steward Partners Investment Advisory, L…2$66<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.2$66<0.01%new13F-HRTimelineGroup