Reporting owner · CIK 0001055951
Orbimed Advisors Llc
Visual SEC Form 4 history across 5 companies, 29 transactions and 8 filings.
DIRElectra Therapeutics, Inc.
Open-market mix
50%buys
Open-market buy performance
90-day forward return on this insider's open-market purchases
For every open-market buy (Form 4 code P, acquisition A) in the selected window, we take the closing price on the transaction date and 90 calendar days later, then compute the percentage change. The figures shown are the simple average and median of those per-buy returns.
- Window follows the rest of the summary (all-history or last 3 months).
- Only buys with a resolved price context are counted.
- Includes both positive and negative outcomes; gains and losses net out at the per-buy level.
Disclosed ownership
How reported shareholdings evolved
Non-derivative shares held after reported transactions—not stock prices or a complete portfolio.
6 observations · Sep 21, 2026 – Sep 21, 2026. Window ends at the latest available report, not today.
Selected observation · Sep 21, 20261,758,279 shares reported
Inspect transaction View exact observations and source transactions
| Transaction date | Shares held after | Filed | Source |
|---|---|---|---|
| Sep 21, 2026 | 2,002,310 | Sep 23, 2026 | View transaction |
| Sep 21, 2026 | 3,090,244 | Sep 23, 2026 | View transaction |
| Sep 21, 2026 | 4,793,558 | Sep 23, 2026 | View transaction |
| Sep 21, 2026 | 5,126,891 | Sep 23, 2026 | View transaction |
| Sep 21, 2026 | 758,279 | Sep 23, 2026 | View transaction |
| Sep 21, 2026 | 1,758,279 | Sep 23, 2026 | View transaction |
Securities and direct/indirect ownership contexts are kept separate and never summed. Joint filings may associate the same disclosed row with multiple owners. Unknown values are omitted, not treated as zero. Lines connect observations for readability; they do not establish holdings between filings, cost basis, or current ownership. Amendments and stock splits require reviewing the source.
Monthly open-market activity
Reported purchase and sale transaction counts
Buys Sells
Net value flow
Buys minus sells
Dec 24
—
Jan 25
−$245.5K
Feb 25
$11.9M
Feb 26
−$1.4M
May 26
−$4.5K
Sep 26
$20M
Transaction texture
Ownership and ticket size
Average P/S size—
Median P/S size—
Direct0
Indirect29
Sep 21, 2026unknown
Filing-only signals
Deterministic matches in this insider's history
Latest Form 4 facts
Quick context from source filings
Latest transaction
buy at Electra Therapeutics, Inc. on Sep 21, 2026 valued at $15,000,000.
Review SEC filingAssociated companies
Visual map of known reporting history
Latest insider transactions
Form 4 filings from available history. Click any column to sort; click it again to flip the order.
| ID | Ticker | Insider | Role | Type | Shares | Value | Code | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|
| #94560 | SION | Orbimed Advisors Llc | DIR | sale10b5-1 | 101 | -$449k | S | 05/30 | 05/27 |
| #44054 | SION | Orbimed Advisors Llc | DIR | sale | 29.0k | -$129M | S | 02/05 | 02/03 |
| #44053 | SION | Orbimed Advisors Llc | DIR | sale | 1.89k | -$8.42M | S | 02/05 | 02/02 |
| #134430 | MBX | Orbimed Advisors Llc | DIR | buy | 94.1k | $102M | P | 02/19/2025 | 02/18/2025 |
| #134429 | MBX | Orbimed Advisors Llc | DIR | buy | 49.0k | $53.1M | P | 02/19/2025 | 02/18/2025 |
| #134428 | MBX | Orbimed Advisors Llc | DIR | buy | 29.5k | $29.0M | P | 02/19/2025 | 02/14/2025 |
| #134427 | MBX | Orbimed Advisors Llc | DIR | buy | 17.9k | $17.7M | P | 02/19/2025 | 02/14/2025 |
| #80740 | SION | Orbimed Advisors Llc | DIR | C | 2.04M | $0 | C | 02/10/2025 | 02/10/2025 |
| #80739 | SION | Orbimed Advisors Llc | DIR | C | 2.56M | $0 | C | 02/10/2025 | 02/10/2025 |
| #80738 | SION | Orbimed Advisors Llc | DIR | buy | 550k | $990M | P | 02/10/2025 | 02/10/2025 |
Orbimed Advisors Llc Insider Activity FAQ
SEC Form 4 context
Who is Orbimed Advisors Llc?
Orbimed Advisors Llc is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001055951.
Which companies has Orbimed Advisors Llc reported transactions for?
Electra Therapeutics, Inc., Sionna Therapeutics, Inc., MBX Biosciences, Inc., Traws Pharma, Inc., Passage BIO, Inc.
When was Orbimed Advisors Llc's latest insider buy?
buy at Electra Therapeutics, Inc. on Sep 21, 2026 valued at $15,000,000.
When was Orbimed Advisors Llc's latest insider sale?
sale at Sionna Therapeutics, Inc. on May 27, 2026 valued at $4,493.
Where can I see the original SEC filings?
Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.
Are performance metrics included?
This version does not calculate win rates, forward returns, benchmark-adjusted returns, or high-conviction scores.