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Robert I Blum Insider Trading Activity

Every SEC Form 4 transaction reported by Robert I Blum, sourced directly from SEC EDGAR and updated as new filings are accepted.

By · Insider-trading data from SEC EDGAR
Latest filing:

Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.

Quick Answer

Is Robert I Blum buying or selling?

Robert I Blum reported 1 open-market buys ($77.5K) and 148 sells ($56.4M) across 149 Form 4 filings at 2 companies — a net selling position of $56.3M.

Source: SEC EDGAR Form 4

What stands out

  • Robert I Blum has reported Form 4 transactions at 2 companies; the most active, CYTOKINETICS INC (CYTK), accounts for 148 of 149 filings (99%).
  • The most recent Form 4 was accepted on Oct 13, 2026 (5 days ago).
  • In the last 12 months: no open-market purchases and 17 sales ($17.5M).
  • The largest open-market sale in the last 12 months was $7.3M of CYTOKINETICS INC (CYTK) on Sep 15, 2026. SEC ↗

Key Statistics (as of Oct 13, 2026)

Total Form 4 filings
149
SEC EDGAR
Companies
2
Buys (1)
$77.5K
Sells (148)
$56.4M

Insider sentiment

Net selling

Net insider flow of $56.3M in net selling, filed between Apr 6, 2018 – Oct 13, 2026.

Companies Robert I Blum files for

#CompanyForm 4 filings
1CYTKCYTOKINETICS INC148
2GMDAGamida Cell Ltd.1

Recent Robert I Blum transactions

DateTickerRoleTypeSharesValueFiling
Oct 13, 2026CYTKPresident & CEOSale7.5K$471.6KSEC ↗
Sep 28, 2026CYTKPresident & CEOSale7.5K$490.9KSEC ↗
Sep 15, 2026CYTKPresident & CEOSale105.4K$7.3MSEC ↗
Aug 31, 2026CYTKPresident & CEOSale7.5K$526.8KSEC ↗
Aug 10, 2026CYTKPresident & CEOSale7.5K$575.7KSEC ↗
Jul 27, 2026CYTKPresident & CEOSale7.5K$606.5KSEC ↗
Jul 14, 2026CYTKPresident & CEOSale7.5K$615.1KSEC ↗
Jul 2, 2026CYTKPresident & CEOSale7.5K$636.9KSEC ↗
Jun 15, 2026CYTKPresident & CEOSale7.5K$528.5KSEC ↗
May 28, 2026CYTKPresident & CEOSale7.5K$579.1KSEC ↗
May 14, 2026CYTKPresident & CEOSale7.5K$584.4KSEC ↗
Apr 29, 2026CYTKPresident & CEOSale7.5K$447.1KSEC ↗
Apr 15, 2026CYTKPresident & CEOSale7.5K$490.4KSEC ↗
Apr 1, 2026CYTKPresident & CEOSale7.5K$499.7KSEC ↗
Mar 18, 2026CYTKPresident & CEOSale36.6K$2.3MSEC ↗
Mar 10, 2026CYTKPresident & CEOSale7.9K$481.6KSEC ↗
Oct 30, 2025CYTKPresident & CEOSale5.0K$314.3KSEC ↗
Oct 16, 2025CYTKPresident & CEOSale5.0K$300.1KSEC ↗
Oct 1, 2025CYTKPresident & CEOSale5.0K$275.3KSEC ↗
Sep 15, 2025CYTKPresident & CEOSale5.0K$248.8KSEC ↗
Sep 2, 2025CYTKPresident & CEOSale5.0K$243.8KSEC ↗
Aug 15, 2025CYTKPresident & CEOSale5.0K$192.1KSEC ↗
Jul 31, 2025CYTKPresident & CEOSale5.0K$182.3KSEC ↗
Jul 15, 2025CYTKPresident & CEOSale5.0K$190.8KSEC ↗
Jul 2, 2025CYTKPresident & CEOSale5.0K$167.8KSEC ↗

Showing the 25 most recent filings of 149. Screen every filing.

Robert I Blum insider trading FAQ

Is Robert I Blum buying or selling?

Across 149 SEC Form 4 filings, Robert I Blum reported 1 open-market purchases totaling $77.5K and 148 sales totaling $56.4M — a net selling position of $56.3M.

Which companies does Robert I Blum file Form 4s for?

Robert I Blum has reported insider transactions at 2 companies, most often CYTOKINETICS INC (CYTK), Gamida Cell Ltd. (GMDA).

How far back does Robert I Blum's filing history go?

Trabud holds Robert I Blum's SEC Form 4 filings from Apr 6, 2018 – Oct 13, 2026, sourced directly from SEC EDGAR.

Where does Trabud get Robert I Blum's insider trading data?

Directly from SEC EDGAR Form 4 filings. Every transaction on this page is a real filing accepted by the SEC, updated as new filings arrive.

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