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RB
Insider

Robert I Blum

President & CEO

Robert I Blum (President & CEO) filed 17 Form 4 reports in the trailing twelve months (0 purchases, 17 sales), most often in Cytokinetics, Incorporated (CYTK). The largest single filing was $7.3M of CYTK (105,426 sh across 2 lots, as filed), executed Sep 14.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
17
0 buys · 17 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$17.1M
shares × price, as filed
Last traded
Sep 15
Filed Sep 15

Median ADV $207.8M across their filed names

Open performance
Volume by month
$7.3M$3.7M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · sells $278KNov 2024 · sells $511KDec 2024 · sells $254KMar 2025 · sells $4.5MApr 2025 · sells $389KMay 2025 · sells $155KJun 2025 · sells $325KJul 2025 · sells $541KAug 2025 · sells $192KSep 2025 · sells $493KOct 2025 · sells $890KMar 2026 · sells $2.8MApr 2026 · sells $1.4MMay 2026 · sells $1.2MJun 2026 · sells $528KJul 2026 · sells $1.9MAug 2026 · sells $1.1MSep 2026 · sells $7.3M
Buys $0 Sells $24.7M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 17 filings

Sector per market data · by filing · past 12 months

Most traded names
CYTK Cytokinetics, Incorporated CYTK · 0 buys · 39 sells 39 filings
Recent filings
CYTKSALE Cytokinetics, Incorporated View filing → $7.3M
105,426 sh across 2 lots
Exec Sep 14
Filed Sep 15 · 5:20 PM ET
CYTKSALE Cytokinetics, Incorporated View filing → $527K
7,500 sh × $70.24
Exec Aug 31
Filed Aug 31 · 4:55 PM ET
CYTKSALE Cytokinetics, Incorporated View filing → $576K
7,500 sh × $76.76
Exec Aug 10
Filed Aug 10 · 5:11 PM ET
CYTKSALE Cytokinetics, Incorporated View filing → $607K
7,500 sh × $80.87
Exec Jul 27
Filed Jul 27 · 4:33 PM ET
CYTKSALE Cytokinetics, Incorporated View filing → $614K
7,490 sh × $82.02
Exec Jul 13
Filed Jul 14 · 3:34 PM ET
CYTKSALE Cytokinetics, Incorporated View filing → $637K
7,500 sh × $84.92
Exec Jul 1
Filed Jul 2 · 5:20 PM ET
CYTKSALE Cytokinetics, Incorporated View filing → $528K
7,500 sh × $70.46
Exec Jun 15
Filed Jun 15 · 5:30 PM ET
CYTKSALE Cytokinetics, Incorporated View filing → $579K
7,500 sh × $77.21
Exec May 27
Filed May 28 · 5:30 PM ET
More filings →