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Disclosery

STRO SUTRO BIOPHARMA INC

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COMMON STOCK (common), issuer CIK 1382101

69 managers (71 13F filers) reported a position in STRO shares at 2026-03-31, 14,095,360 shares in all. 21 filers opened a position and 8 filers sold out during the quarter.

Managers
69
13F filers
71
New
21
Added
23
Reduced
12
Sold out
8
Shares held by filers
14,095,360

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
BVF INC/ILin group BVF INC/IL1,251,788$31.2M0.99%new13F-HRTimelineGroup
Affinity Asset Advisors, LLC1,069,519$26.6M1.56%+321,13713F-HRTimeline
SAMSARA BIOCAPITAL, LLC1,062,872$26.5M2.57%+858,36913F-HRTimeline
Kynam Capital Management, LP872,558$21.7M1.38%+392,96813F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding822,462$20.5MnewTimeline
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC801,144$20M0.44%new13F-HRTimelineGroup
PERCEPTIVE ADVISORS LLCin group PERCEPTIVE ADVISORS LLC715,307$17.8M0.35%new13F-HR/ATimelineGroup
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.715,307$17.8M0.19%new13F-HRTimelineGroup
EVENTIDE ASSET MANAGEMENT, LLC715,307$17.8M0.29%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.692,111$17.2M0.03%+513,02313F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC524,441$13.1M0.79%+457,36413F-HRTimelineGroup
Velan Capital Investment Management LP512,160$12.8M7.99%+200,16013F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management465,792$11.6M0.02%+235,74313F-HRTimelineGroup
Woodline Partners LP457,441$11.4M0.04%new13F-HR/ATimeline
UBS Group AGin group UBS Group AG392,871$9.79M<0.01%+385,00113F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC335,813$8.36M0.01%-2,14013F-HRTimelineGroup
ACUTA CAPITAL PARTNERS, LLC269,425$6.71M4.77%+201,97413F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.232,684$5.8M<0.01%+115,24713F-HRTimelineGroup
KVP Capital Advisors, LP226,575$5.64M4.22%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP222,634$5.55M0.01%+137,01913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC210,378$5.24M<0.01%-207,81813F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…200,000$4.98M0.01%013F-HRTimelineGroup
Opaleye Management Inc.190,671$4.75M0.63%013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC171,386$4.27M<0.01%+87,40713F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC117,537$2.93M<0.01%+85,45213F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC97,824$2.44M<0.01%-25,04113F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…84,902$2.11M<0.01%new13F-HRTimelineGroup
Eversept Partners, LP73,161$1.82M0.12%-120,41013F-HRTimeline
Burkehill Global Management, LP71,530$1.78M0.09%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP65,176$1.62M<0.01%+18,68413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP52,118$1.3M<0.01%+17,85213F-HRTimelineGroup
Fisher Asset Management, LLC35,295$879K<0.01%-1013F-HRTimeline
Trexquant Investment LP34,343$855K0.01%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP33,166$826K<0.01%+18,78713F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC27,760$692K<0.01%+4,81513F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC27,187$677K<0.01%+11,51813F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP25,822$643K0.04%-63,24513F-HRTimeline
STEMPOINT CAPITAL LP23,295$580K0.11%new13F-HR/ATimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/18,873$470K<0.01%+14,66113F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC18,845$469K<0.01%+17,80213F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…18,791$468K<0.01%new13F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.17,165$428K<0.01%+19513F-HRTimelineGroup
RBF Capital, LLC15,272$380K0.02%013F-HR/ATimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…14,768$368K<0.01%new13F-HRTimelineGroup
Sigma Planning Corp12,520$312K0.01%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC12,385$309K<0.01%new13F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co10,577$263K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY10,529$262K<0.01%-5,39313F-HRTimelineGroup
OMERS ADMINISTRATION Corp8,700$217K<0.01%-2,32313F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC8,605$214K<0.01%-9,42913F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd8,203$204K<0.01%new13F-HRTimelineGroup
Persistent Asset Partners Ltd7,411$185K0.07%new13F-HRTimeline
State of Tennessee, Department of Treas…7,400$184K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,280$31.9K<0.01%-5813F-HRTimelineGroup
FMR LLCin group FMR LLC1,050$26.2K<0.01%-5813F-HRTimelineGroup
CWM, LLCin group CWM, LLC983$24.5K<0.01%-51613F-HRTimelineGroup
FNY Investment Advisers, LLC1,000$24K0.01%013F-HRTimeline
Owl Creek Wealth Partners LLC491$12.2K<0.01%13F-HRTimeline
Physician Wealth Advisors, Inc.182$4.53K<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC139$3.46K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS111$2.77K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…62$1.54K<0.01%013F-HRTimelineGroup
SIMPLEX TRADING, LLC62$1.54K<0.01%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC44$1.1K<0.01%013F-HRTimeline
Avion Wealth72$1K<0.01%013F-HRTimeline
HighMark Wealth Management LLC23$572<0.01%013F-HRTimeline
Arax Advisory Partners41$75<0.01%+3813F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…2$50<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA12$00%+113F-HRTimelineGroupValue filed as zero, left out of ratios.