Public ownership evidence

Sutro Biopharma, Inc. (STRO) Ownership Disclosures

Read STRO insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Recent Form 4 activity

No matching purchases, sales or awards were returned in this 90-day public filing window.

No records are available for this view.

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25220$7,304None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-257,304$220,000None
Seven Fleet Capital Management LP2026-06-302026-08-18159,118$3,794,182None
SEI INVESTMENTS CO2026-06-302026-08-1516,387$544,048None
Integrated Quantitative Investments LLC2026-06-302026-08-158,939$296,775None
ADAR1 Capital Management, LLC2026-06-302026-08-15404,014$13,413,265None
Kynam Capital Management, LP2026-06-302026-08-15872,558$28,968,926None
Velan Capital Investment Management LP2026-06-302026-08-15512,160$17,003,712None
XTX Topco Ltd2026-06-302026-08-1552,169$1,732,011None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-1549,302$1,636,826None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-1549,302$1,636,826None
SAMSARA BIOCAPITAL, LLC2026-06-302026-08-151,062,872$35,287,350None
Qube Research & Technologies Ltd2026-06-302026-08-15106,610$3,539,452None
OSAIC HOLDINGS, INC.2026-06-302026-08-15100$3,320None
Squarepoint Ops LLC2026-06-302026-08-1555,539$1,843,895None
Trexquant Investment LP2026-06-302026-08-1527,636$917,515None
MetLife Investment Management, LLC2026-06-302026-08-159,401$312,113None
EVENTIDE ASSET MANAGEMENT, LLC2026-06-302026-08-15585,262$19,430,698None
Legal & General Group Plc2026-06-302026-08-151,914$63,545None
Legal & General Group Plc2026-06-302026-08-151,548$51,394None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1511,100$368,520Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1511,000$365,200Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-158,426$279,743None
Verdad Advisers, LP2026-06-302026-08-156,400$212,480None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15365,972$12,150,270None
Balyasny Asset Management L.P.2026-06-302026-08-15711,162$23,610,578None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15244,669$8,123,011None
ORBIMED ADVISORS LLC2026-06-302026-08-15743,944$24,698,941None
Lighthouse Investment Partners, LLC2026-06-302026-08-158,368$277,818None
Woodline Partners LP2026-06-302026-08-15458,029$15,206,563None
ROYAL BANK OF CANADA2026-06-302026-08-15687$23,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-157,300$242,360None
D. E. Shaw & Co., Inc.2026-06-302026-08-1530,128$1,000,250None
CITADEL ADVISORS LLC2026-06-302026-08-151$33None
CITADEL ADVISORS LLC2026-06-302026-08-15101,964$3,385,205None
ACUTA CAPITAL PARTNERS, LLC2026-06-302026-08-15270,251$8,972,333None
RBF Capital, LLC2026-06-302026-08-1515,272$507,030None
Elmind Capital, LP2026-06-302026-08-1532,037$1,063,628None
PERCEPTIVE ADVISORS LLC2026-06-302026-08-151,304,846$43,320,887None
BVF INC/IL2026-06-302026-08-151,251,788$41,559,362None
Point72 Asset Management, L.P.2026-06-302026-08-15237,827$7,895,856None
Invesco Ltd.2026-06-302026-08-1548,935$1,624,642None
Invesco Ltd.2026-06-302026-08-1516$531None
Invesco Ltd.2026-06-302026-08-151,995$66,234None
Invesco Ltd.2026-06-302026-08-156,359$211,119None
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.2026-06-302026-08-157,313$242,792None
WELLINGTON MANAGEMENT GROUP LLP2026-06-302026-08-157,200$239,040None
WELLINGTON MANAGEMENT GROUP LLP2026-06-302026-08-153,600$119,520None
TWO SIGMA INVESTMENTS, LP2026-06-302026-08-15201,688$6,696,042None
GOLDMAN SACHS GROUP INC2026-06-302026-08-156,780$225,096None

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.