Public ownership evidence

Fulcrum Therapeutics, Inc. Common Stock (FULC) Ownership Disclosures

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

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

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Fulcrum Therapeutics, Inc. Common Stock: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-07-21
Trade date
2026-07-17
Reporting owners
TANG CAPITAL MANAGEMENT LLC, TANG KEVIN
Code
P
Shares
50,945
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001178579-26-000016
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read FULC fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read FULC fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity
2026-07-212026-07-17TANG CAPITAL MANAGEMENT LLC, TANG KEVINP50,945Not reported
2026-07-212026-07-16TANG CAPITAL MANAGEMENT LLC, TANG KEVINP116,671Not reported
2026-07-162026-07-15TANG CAPITAL MANAGEMENT LLC, TANG KEVINP107,377Not reported
2026-07-162026-07-14TANG CAPITAL MANAGEMENT LLC, TANG KEVINP75,952Not reported
2026-07-162026-07-14TANG CAPITAL MANAGEMENT LLC, TANG KEVINP53,651Not reported
2026-07-162026-07-13TANG CAPITAL MANAGEMENT LLC, TANG KEVINP12,966Not reported

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 SYSTEM2026-06-302026-08-25817$2,990None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,990$817,000None
Assenagon Asset Management S.A.2026-06-302026-08-22835,204$3,056,847None
Nantahala Capital Management, LLC2026-06-302026-08-205,475,040$20,038,646None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2021,370$78,214None
Seven Fleet Capital Management LP2026-06-302026-08-1818,089$66,206None
Graham Capital Management, L.P.2026-06-302026-08-1525,067$91,745None
SEI INVESTMENTS CO2026-06-302026-08-1530,681$112,292None
Rafferty Asset Management, LLC2026-06-302026-08-1524,538$89,809None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1585,580$313,223None
Basecamp Wealth Advisors LLC2026-06-302026-08-1573$267None
ADAR1 Capital Management, LLC2026-06-302026-08-151,565,029$5,728,006None
Rangeley Capital, LLC2026-06-302026-08-15114,890$420,497None
XTX Topco Ltd2026-06-302026-08-15209,247$765,844None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15433,220$1,585,585None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15433,220$1,585,585None
Qube Research & Technologies Ltd2026-06-302026-08-151,748,467$6,399,389None
OSAIC HOLDINGS, INC.2026-06-302026-08-15168$614None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1516,078$58,844None
Squarepoint Ops LLC2026-06-302026-08-15126,558$463,202None
MetLife Investment Management, LLC2026-06-302026-08-1534,079$124,729None
Engineers Gate Manager LP2026-06-302026-08-15242,000$885,720None
JANE STREET GROUP, LLC2026-06-302026-08-151,023,145$3,744,711None
JANE STREET GROUP, LLC2026-06-302026-08-151,194,353$4,371,332None
JANE STREET GROUP, LLC2026-06-302026-08-1524,000$87,840Put
JANE STREET GROUP, LLC2026-06-302026-08-1544,200$161,772Call
LMR Partners LLP2026-06-302026-08-155,000$18,300Call
LMR Partners LLP2026-06-302026-08-1530,000$109,800None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-15303,988$1,112,596None
Legal & General Group Plc2026-06-302026-08-155,251$19,219None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1572,000$263,520Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15175,400$641,964Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-151,180,946$4,322,262None
Ikarian Capital, LLC2026-06-302026-08-151,049,161$3,839,929None
Aigen Investment Management, LP2026-06-302026-08-1529,512$108,014None
Verdad Advisers, LP2026-06-302026-08-15125,224$458,320None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-151,485,803$5,438,039None
TANG CAPITAL MANAGEMENT LLC2026-06-302026-08-156,521,412$23,868,368None
Scientech Research LLC2026-06-302026-08-1528,584$104,617None
Balyasny Asset Management L.P.2026-06-302026-08-15692,372$2,534,082None
MONTANOVA CAPITAL, LLC2026-06-302026-08-153,680,921$13,472,171None
ADAGE CAPITAL PARTNERS GP, L.L.C.2026-06-302026-08-152,000,000$7,320,000None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1591$333None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,100,407$4,027,490None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15256$937None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-155$18None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,376$5,036None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,126$4,121None
MANUFACTURERS LIFE INSURANCE COMPANY, THE2026-06-302026-08-1516,719$61,192None
ROYAL BANK OF CANADA2026-06-302026-08-151,035$4,000None

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

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗Nantahala Capital Management, LLC ↗MERCER GLOBAL ADVISORS INC /ADV ↗Seven Fleet Capital Management LP ↗Graham Capital Management, L.P. ↗SEI INVESTMENTS CO ↗Rafferty Asset Management, LLC ↗Susquehanna Portfolio Strategies, LLC ↗

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.

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.

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