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Public ownership evidence

Crescent Biopharma, Inc. Common Stock (CBIO) Ownership Disclosures

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

As of 2026-10-14T23:32:50.005Z

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2026-09-182026-09-16Lynch RyanS240Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-16 and its public availability date is 2026-09-18. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001628280-26-062709 ↗SEC 0001628280-26-062707 ↗SEC 0001628280-26-062706 ↗

Recent Form 4 activity

Inspect all 11 displayed rows: Recent Form 4 activity

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2026-09-182026-09-16Lynch RyanS240Not reported
2026-09-182026-09-16Pinkas JanS658Not reported
2026-09-182026-09-16Im Ellie EunkyungS623Not reported
2026-09-182026-09-16Scalzo Richard WilliamS568Not reported
2026-09-182026-09-16Bispham Barbara HarlinS620Not reported
2026-09-182026-09-18Brumm Joshua TS7,837Not reported
2026-09-182026-09-16Brumm Joshua TS1,610Not reported
2026-09-182026-09-18McNeill JonathanS3,839Not reported
2026-09-182026-09-16McNeill JonathanS731Not reported
2026-07-212026-07-16Fairmount Funds Management LLC, Fairmount Healthcare Fund II L.P., Harwin Peter Evan, Kiselak TomasP853,450Not reported
2026-07-212026-07-16Fairmount Funds Management LLC, Fairmount Healthcare Fund II L.P., Harwin Peter Evan, Kiselak TomasP525,897Not reported

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

Recent institutional filing receipts

Inspect all 50 displayed rows: 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.

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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25297$5,346None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-255,346$297,000None
Stonepine Capital Management, LLC2026-06-302026-08-1840,000$720,000None
Vestal Point Capital, LP2026-06-302026-08-151,630,000$29,340,000None
Quarry LP2026-06-302026-08-1529$522None
ADAR1 Capital Management, LLC2026-06-302026-08-1518,275$328,950None
XTX Topco Ltd2026-06-302026-08-1510,564$190,152None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-1550,258$904,644None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-1550,258$904,644None
OSAIC HOLDINGS, INC.2026-06-302026-08-1526$468None
Squarepoint Ops LLC2026-06-302026-08-1524,166$434,988None
MetLife Investment Management, LLC2026-06-302026-08-1512,780$230,040None
Venrock Adviser, LLC2026-06-302026-08-152,133,576$38,404,368None
Legal & General Group Plc2026-06-302026-08-152,097$37,746None
RTW INVESTMENTS, LP2026-06-302026-08-15372,856$6,711,408None
MOORE CAPITAL MANAGEMENT, LP2026-06-302026-08-1525,000$450,000None
Stonepine Capital Management, LLC2026-06-302026-08-1540,000$720,000None
Opaleye Management Inc.2026-06-302026-08-151,319,351$23,748,318None
Exome Asset Management LLC2026-06-302026-08-15127,769$2,299,842None
STEMPOINT CAPITAL LP2026-06-302026-08-15182,382$3,282,876None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15403,859$7,269,462None
TANG CAPITAL MANAGEMENT LLC2026-06-302026-08-151,160,000$20,880,000None
Boxer Capital Management, LLC2026-06-302026-08-15453,686$8,166,348None
Blackstone Inc.2026-06-302026-08-1562,647$1,127,646None
Balyasny Asset Management L.P.2026-06-302026-08-151,662,917$29,932,506None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15302,568$5,446,224None
FCPM III SERVICES B.V.2026-06-302026-08-151,677,852$30,201,336None
Woodline Partners LP2026-06-302026-08-1594,488$1,700,784None
NEXTBio Capital Management LP2026-06-302026-08-15372,856$6,711,408None
Logos Global Management LP2026-06-302026-08-151,900,000$34,200,000None
MANUFACTURERS LIFE INSURANCE COMPANY, THE2026-06-302026-08-1517,755$319,590None
ROYAL BANK OF CANADA2026-06-302026-08-15661$12,000None
SECTORAL ASSET MANAGEMENT INC2026-06-302026-08-15121,300$2,183,400None
Fairmount Funds Management LLC2026-06-302026-08-152,747,866$49,461,588None
Burkehill Global Management, LP2026-06-302026-08-1574,000$1,332,000None
PERCEPTIVE ADVISORS LLC2026-06-302026-08-15206,942$3,724,956None
BVF INC/IL2026-06-302026-08-152,748,763$49,477,734None
Point72 Asset Management, L.P.2026-06-302026-08-15300,000$5,400,000None
Invesco Ltd.2026-06-302026-08-153,121$56,178None
Invesco Ltd.2026-06-302026-08-158,610$154,980None
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.2026-06-302026-08-159,901$178,218None
WELLINGTON MANAGEMENT GROUP LLP2026-06-302026-08-159,900$178,200None
WELLINGTON MANAGEMENT GROUP LLP2026-06-302026-08-154,700$84,600None
TWO SIGMA INVESTMENTS, LP2026-06-302026-08-15186,874$3,363,732None
BARCLAYS PLC2026-06-302026-08-151,426$25,668None
BARCLAYS PLC2026-06-302026-08-153,036$54,648None
PRICE T ROWE ASSOCIATES INC /MD/2026-06-302026-08-1526,269$473,000None
PRICE T ROWE ASSOCIATES INC /MD/2026-06-302026-08-15249,312$4,488,000None
WELLS FARGO & COMPANY/MN2026-06-302026-08-1519,700$354,600None
BANK OF AMERICA CORP /DE/2026-06-302026-08-1513,407$241,326None

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

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Stonepine Capital Management, LLC ↗Vestal Point Capital, LP ↗Quarry LP ↗ADAR1 Capital Management, LLC ↗XTX Topco Ltd ↗CHARLES SCHWAB INVESTMENT MANAGEMENT INC ↗Sixth Street Partners Management Company, L.P. ↗OSAIC HOLDINGS, INC. ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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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.

Institutional source directory ↗Congressional source directory ↗

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.