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Insider
Orbimed Advisors Llc
DirectorOrbimed Advisors Llc (Director) filed 15 Form 4 reports as a reporting entity in the trailing twelve months (7 purchases, 8 sales, 1 filed past the two-business-day deadline), most often in Sionna Therapeutics, Inc. (SION). Across 7 priced purchase filings, the average 21-session return was +16.9% from execution and +18.9% from disclosure (delay-adjusted; derived). The largest single filing was $38.9M of ELVN (858,646 sh across 3 lots, as filed), executed Jun 22.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
+16.9%
avg across 7 priced filings
Delay-adjustediThe same average, entered at disclosure dates
+18.9%
same 7 filings, from disclosure
Filings, ttm
15
7 buys · 8 sells · 1 late
Median delay
2d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$197.7M
shares × price, as filed
Last traded
Aug 10
Filed Aug 12
Median ADV $10.0M across their filed names
Impact on $10,000 · 12M
$16,673 (+66.7%)
S&P 500 $11,725 (+17.2%) · 49.5 pts ahead
Orbimed Advisors Llc
S&P 500
Compounded across filings from disclosure dates · past 12 months
Open performance→Volume by month
Buys $112.9M
Sells $113.0M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
12 filings
Not on file
3 filings
Sector per market data · by filing · past 12 months
Most traded names
SIONRecent filings
SIONSALE
Sionna Therapeutics, Inc.
View filing →
$13.4M292,952 sh across 3 lots
Exec May 7
Filed May 11 · 5:30 PM ET PRLDPURCHASE Prelude Therapeutics Inc View filing → $12.5M
2,815,315 sh across 2 lots
Exec Apr 21
Filed Apr 23 · 6:48 PM ET SIONSALE Sionna Therapeutics, Inc. View filing → $2.5M
55,345 sh across 2 lots
Exec Apr 17
Filed Apr 21 · 5:30 PM ET TRAWPURCHASE Traws Pharma, Inc. View filing → $998K
597,729 sh × $1.67
Exec Apr 16
Filed Apr 28 · 9:41 PM ET † SIONSALE Sionna Therapeutics, Inc. View filing → $22.9M
510,583 sh across 3 lots
Exec Apr 14
Filed Apr 16 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. View filing → $4.7M
106,473 sh across 2 lots
Exec Nov 24 2025
Filed Nov 26 2025 · 5:30 PM ET ACETPURCHASE Adicet Bio, Inc. View filing → $5.0M
5,000,000 sh across 2 lots
Exec Oct 8 2025
Filed Oct 10 2025 · 8:06 PM ET PMVPSALE PMV Pharmaceuticals, Inc. View filing → $900K
500,000 sh × $1.80
Exec Sep 10 2025
Filed Sep 12 2025 · 5:30 PM ET More filings →