Get API key
Reporting owner · Q3 2026 · CIK 1232621

Tang Capital Management LLC: insider trades.

Tang Capital Management LLC reported 23 non-derivative transactions on 9 SEC ownership filings in Q3 2026: 22 open-market purchases ($2.3M) and 1 sale ($54K), across 2 companies.

Transactions
23
Purchases (P)
22
Sales (S)
1
Companies
2
Name as filed
TANG CAPITAL MANAGEMENT LLC

Companies

CompanyRelationshipTransactions
Boundless Bio, Inc. (BOLD)TenPercentOwner17
Fulcrum Therapeutics, Inc. (FULC)TenPercentOwner6

Transactions

23 non-derivative rows. Shares and prices as filed.
DateCompanyCodeSharesPriceOwned afterFiling
2026-08-26Boundless Bio, Inc.S18,300$2.972,840,635Form 4
2026-07-21Boundless Bio, Inc.P2,975$2.442,858,935Form 4
2026-07-20Boundless Bio, Inc.P1,623$2.442,855,960Form 4
2026-07-17Boundless Bio, Inc.P265$2.442,854,337Form 4
2026-07-17Fulcrum Therapeutics, Inc.P50,945$3.527,080,945Form 4
2026-07-16Fulcrum Therapeutics, Inc.P116,671$3.567,030,000Form 4
2026-07-16Boundless Bio, Inc.P18,491$2.442,854,072Form 4
2026-07-15Boundless Bio, Inc.P1,600$2.442,835,581Form 4
2026-07-15Fulcrum Therapeutics, Inc.P107,377$3.566,913,329Form 4
2026-07-14Boundless Bio, Inc.P43,878$2.432,833,981Form 4
2026-07-14Fulcrum Therapeutics, Inc.P75,952$3.586,805,952Form 4
2026-07-14Fulcrum Therapeutics, Inc.P53,651$3.566,730,000Form 4
2026-07-13Fulcrum Therapeutics, Inc.P12,966$3.546,676,349Form 4
2026-07-13Boundless Bio, Inc.P48,211$2.422,790,103Form 4
2026-07-10Boundless Bio, Inc.P43,367$2.432,741,892Form 4
2026-07-09Boundless Bio, Inc.P7$2.482,698,525Form 4
2026-07-08Boundless Bio, Inc.P14,338$2.462,698,518Form 4
2026-07-07Boundless Bio, Inc.P15,810$2.482,684,180Form 4
2026-07-06Boundless Bio, Inc.P27,062$2.492,668,370Form 4
2026-07-02Boundless Bio, Inc.P9,821$2.492,641,308Form 4
2026-07-01Boundless Bio, Inc.P71,612$2.492,631,487Form 4
2026-06-30Boundless Bio, Inc.P25,930$2.542,559,775Form 4
2026-06-30Boundless Bio, Inc.P100$2.52,559,875Form 4

Questions

What stock did Tang Capital Management LLC buy or sell?

Tang Capital Management LLC reported 23 non-derivative transactions on 9 SEC ownership filings in Q3 2026: 22 open-market purchases ($2.3M) and 1 sale ($54K), across 2 companies.

Is Tang Capital Management LLC the same person as other filers with this name?

This page covers SEC CIK 1232621 only. The SEC assigns each reporting owner a CIK, and people with the same name have different CIKs.

Source: SEC Insider Transactions Data Sets, Q3 2026. Reported as filed; we do not assess intent, performance or compliance. All filings for this CIK on SEC.gov.

Plain-text version for agents and LLMs: /insiders/tang-capital-management-llc-1232621.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.