Robert I Blum
CIK 1288859 · President & CEO · last filed 2026-07-27
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$29.16M
Companies
2
Total Filings
288
Lifetime Open-Market Net
-$51.90M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CYTK | President & CEO | 379,903 | $76.76 | $29.16M | -$51.98M | 246 | 2026-07-27 |
| Gamida Cell Ltd. (GMDA) Delisted | Director | 96,500 | $0.03 | $3.2K | $77.5K | 3 | 2023-02-10 |
Recent Filings · Page 3 of 29
288 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-10-01 | CYTK | Notice (144) | −15,000 | -$824.4K | EDGAR |
| 2025-10-01 | CYTK | Sell (S) | −5,000 | -$275.2K | EDGAR |
| 2025-09-15 | CYTK | Sell (S) | −5,000 | -$248.9K | EDGAR |
| 2025-09-02 | CYTK | Sell (S) | −5,000 | -$243.8K | EDGAR |
| 2025-08-15 | CYTK | Sell (S) | −5,000 | -$192.1K | EDGAR |
| 2025-07-31 | CYTK | Sell (S) | −5,000 | -$182.2K | EDGAR |
| 2025-07-15 | CYTK | Sell (S) | −5,000 | -$190.8K | EDGAR |
| 2025-07-02 | CYTK | Sell (S) | −5,000 | -$167.8K | EDGAR |
| 2025-06-16 | CYTK | Notice (144) | −35,000 | -$1.20M | EDGAR |
| 2025-06-16 | CYTK | Sell (S) | −5,000 | -$169.0K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.