Loomis Sayles & Co L P
Source: SEC Form 13F · as of Mar 2026Loomis Sayles & Co L P holds 19 biotech & pharma companies tracked by BioSniper, totaling $2.18B in value as of Mar 2026 (SEC Form 13F).
Companies held
19
Total value held
$2.18B
BioSniper AIPage evidence connected
Prepared research question
What matters most for REGENERON PHARMACEUTICALS, INC. (REGN)—catalysts, financial risk and supporting evidence?
Run cited research
Traceable citations · Unknowns marked
| Company | Shares | Value |
|---|---|---|
| REGNREGENERON PHARMACEUTICALS, INC. | 1,912,310 | $1.48B |
| ALNYALNYLAM PHARMACEUTICALS, INC. | 512,097 | $169.4M |
| SUPNSUPERNUS PHARMACEUTICALS, INC. | 1,425,779 | $73.7M |
| LGNDLigand Pharmaceuticals Incorporated | 353,209 | $70.5M |
| AXSMAxsome Therapeutics, Inc. | 256,625 | $43.4M |
| RYTMRHYTHM PHARMACEUTICALS, INC. | 465,102 | $40.4M |
| BMRNBIOMARIN PHARMACEUTICAL INC | 713,795 | $40.3M |
| JAZZJazz Pharmaceuticals plc | 205,905 | $38.9M |
| PTCTPTC THERAPEUTICS, INC. | 493,603 | $33.6M |
| INSMINSMED Inc | 194,982 | $31.9M |
| SRRKScholar Rock Holding Corp | 638,629 | $31.4M |
| VCELVericel Corp | 975,447 | $31.4M |
| APGEApogee Therapeutics, Inc. | 362,781 | $30.5M |
| IRONDisc Medicine, Inc. | 317,222 | $20.3M |
| VRDNViridian Therapeutics, Inc.\DE | 927,717 | $18.1M |
| ANIPANI PHARMACEUTICALS INC | 162,986 | $12.5M |
| TVTXTravere Therapeutics, Inc. | 301,466 | $9.0M |
| GILDGILEAD SCIENCES, INC. | 46,065 | $6.4M |
| ARGXARGENX SE | 1,574 | $1.1M |
13F holdings reflect long positions in U.S.-listed securities as reported to the SEC. Values are point-in-time for the most recent reported quarter.