Sector Gamma As

In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 12, 2026), Sector Gamma As reported 36 stock positions worth $438.7 million. Its top holding was Bristol-Myers Squibb (BMY) at 9.2% of the portfolio, followed by Merck (MRK, 8.7%) and Medtronic (MDT, 5.9%). Compared with Q3 2025, it opened 3 new positions, sold out of 8, added to 22 and reduced 10. The biggest buy was Bristol-Myers Squibb (BMY, shares +28%) and the biggest sale Pfizer (PFE, shares −31%).

Most Recent 13F
Q2 2026
Location
OSLO, Q8
CIK
0001475373
Portfolio Value
$438.7M (Q4 2025)
SEC Filing
0000945621-26-000283 ↗ filed Feb 12, 2026

Holdings Value

0$100.0M$200.0M$300.0M$400.0M$500.0M Q1 2024: $354.8M Q1 2024 Q2 2024: $267.7M Q2 2024 Q3 2024: $329.6M Q3 2024 Q4 2024: $290.9M Q4 2024 Q1 2025: $312.2M Q1 2025 Q2 2025: $305.9M Q2 2025 Q3 2025: $403.3M Q3 2025 Q4 2025: $438.7M $438.7M Q4 2025 Q1 2026: $423.5M Q1 2026 Q2 2026: $461.0M Q2 2026

Holdings 36 stocks · $438.7M

BMY Bristol-Myers Squibb Co. 9.17% 745,955 $40.2M Add +28.3%
MRK Merck & Co. Inc. 8.72% 363,651 $38.3M Add +12.8%
MDT Medtronic PLC 5.90% 269,644 $25.9M Reduce -11.1%
BDX Becton Dickinson and Co. 5.86% 132,376 $25.7M Add +21.6%
GILD Gilead Sciences Inc. 4.94% 176,414 $21.7M Add +19.8%
INCY Incyte Corp. 4.93% 218,783 $21.6M Add +6.7%
PFE Pfizer Inc. 4.88% 859,539 $21.4M Reduce -31.4%
AMGN Amgen Inc. 4.55% 60,956 $20.0M Reduce -0.8%
BIIB Biogen Inc. 3.43% 85,475 $15.0M Add +13.3%
IONS Ionis Pharmaceuticals Inc. 3.34% 184,977 $14.6M Reduce -31.7%
CVS CVS Health Corp. 3.21% 177,599 $14.1M Add +13.7%
CAH Cardinal Health Inc. 2.90% 61,946 $12.7M Add +4.0%
TMO Thermo Fisher Scientific Inc. 2.86% 21,688 $12.6M Add +17.6%
BRKR Bruker Corp. 2.73% 254,697 $12.0M Add +1.5%
ZBH Zimmer Biomet Holdings Inc. 2.72% 132,478 $11.9M Add +16.7%
BMRN Biomarin Pharmaceutical Inc. 2.69% 198,505 $11.8M Add +12.9%
ELV Elevance Health Inc. 2.60% 32,546 $11.4M Add +238.9%
CNC Centene Corp. 2.42% 258,109 $10.6M Add +21.1%
GEHC GE Healthcare Technology 2.14% 114,390 $9.4M Add +2.7%
EW Edwards Lifesciences Corp. 1.87% 96,402 $8.2M Add +32.1%
AVTR Avantor Inc. 1.82% 695,403 $8.0M Add +45.8%
BIO Bio-Rad Laboratories-A 1.64% 23,750 $7.2M Add +4.0%
LH Labcorp Holdings Inc. 1.55% 27,019 $6.8M Add +4.0%
LNTH Lantheus Holdings Inc. 1.42% 93,823 $6.2M Add +45.7%
TNDM Tandem Diabetes Care Inc. 1.34% 267,091 $5.9M Reduce -0.9%
REGN Regeneron Pharmaceuticals 1.26% 7,165 $5.5M New
CRNX Crinetics Pharmaceuticals Inc. 1.22% 115,000 $5.4M New
SNDX Syndax Pharmaceuticals Inc. 1.21% 252,062 $5.3M Add +19.6%
DXCM Dexcom Inc. 1.15% 76,122 $5.1M Reduce -0.9%
HCA HCA Healthcare Inc. 1.15% 10,784 $5.0M Reduce -0.9%
KURA Kura Oncology Inc. 1.08% 455,841 $4.7M Add +4.0%
PTCT PTC Therapeutics Inc. 1.07% 61,923 $4.7M Reduce -47.6%
ASND Ascendis Pharma A/S 0.79% 16,305 $3.5M Reduce -33.0%
CGON CG Oncology Inc. 0.49% 52,039 $2.2M New
OGN Organon & Co. 0.49% 300,000 $2.2M Reduce -44.8%
CERT Certara Inc. 0.46% 230,565 $2.0M No change

Portfolio Sells Q3 2025 → Q4 2025

PFE Pfizer Inc. Reduce -31.4% 4.88% −3.03
BAX Baxter International Inc. Sold out 0.00% −2.15
VTRS Viatris Inc. Sold out 0.00% −1.64
HUM Humana Inc. Sold out 0.00% −1.54
ELAN Elanco Animal Health Inc. Sold out 0.00% −1.53
MDT Medtronic PLC Reduce -11.1% 5.90% −1.26
ICLR Icon PLC Sold out 0.00% −1.08
SOLV Solventum Corp. Sold out 0.00% −1.07
IONS Ionis Pharmaceuticals Inc. Reduce -31.7% 3.34% −1.06
OGN Organon & Co. Reduce -44.8% 0.49% −0.95
PTCT PTC Therapeutics Inc. Reduce -47.6% 1.07% −0.73
BNTX Biontech SE-ADR Sold out 0.00% −0.68
ACLX Arcellx Inc. Sold out 0.00% −0.65
ASND Ascendis Pharma A/S Reduce -33.0% 0.79% −0.41
DXCM Dexcom Inc. Reduce -0.9% 1.15% −0.13
HCA HCA Healthcare Inc. Reduce -0.9% 1.15% −0.00
AMGN Amgen Inc. Reduce -0.8% 4.55% +0.25
TNDM Tandem Diabetes Care Inc. Reduce -0.9% 1.34% +0.53

Portfolio Buys Q3 2025 → Q4 2025

BMY Bristol-Myers Squibb Co. Add +28.3% 9.17% +2.67
MRK Merck & Co. Inc. Add +12.8% 8.72% +2.01
ELV Elevance Health Inc. Add +238.9% 2.60% +1.83
REGN Regeneron Pharmaceuticals New 1.26% +1.26
CRNX Crinetics Pharmaceuticals Inc. New 1.22% +1.22
GILD Gilead Sciences Inc. Add +19.8% 4.94% +0.88
BIIB Biogen Inc. Add +13.3% 3.43% +0.81
BDX Becton Dickinson and Co. Add +21.6% 5.86% +0.81
BRKR Bruker Corp. Add +1.5% 2.73% +0.71
TMO Thermo Fisher Scientific Inc. Add +17.6% 2.86% +0.65
INCY Incyte Corp. Add +6.7% 4.93% +0.61
LNTH Lantheus Holdings Inc. Add +45.7% 1.42% +0.60
CAH Cardinal Health Inc. Add +4.0% 2.90% +0.58
CNC Centene Corp. Add +21.1% 2.42% +0.53
CGON CG Oncology Inc. New 0.49% +0.49
EW Edwards Lifesciences Corp. Add +32.1% 1.87% +0.47
SNDX Syndax Pharmaceuticals Inc. Add +19.6% 1.21% +0.40
AVTR Avantor Inc. Add +45.8% 1.82% +0.34
BMRN Biomarin Pharmaceutical Inc. Add +12.9% 2.69% +0.33
CVS CVS Health Corp. Add +13.7% 3.21% +0.29
KURA Kura Oncology Inc. Add +4.0% 1.08% +0.12
GEHC GE Healthcare Technology Add +2.7% 2.14% +0.06
BIO Bio-Rad Laboratories-A Add +4.0% 1.64% +0.05
ZBH Zimmer Biomet Holdings Inc. Add +16.7% 2.72% −0.06
LH Labcorp Holdings Inc. Add +4.0% 1.55% −0.30

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 40$461.0MBMY, MRK, MDT, PFE, INCY
Q1 2026 42$423.5MBMY, MRK, PFE, MDT, INCY
Q4 2025 36$438.7MBMY, MRK, MDT, BDX, GILD
Q3 2025 41$403.3MPFE, MDT, MRK, BMY, BDX
Q2 2025 38$305.9MPFE, MDT, BMY, BDX, MRK
Q1 2025 33$312.2MBMY, PFE, BDX, MDT, AMGN
Q4 2024 30$290.9MPFE, MDT, BMY, GILD, BDX
Q3 2024 29$329.6MBMY, MDT, GILD, PFE, CVS
Q2 2024 28$267.7MGILD, PFE, BMY, MDT, ELV
Q1 2024 28$354.8MMDT, PFE, BMY, CVS, CAH