Perkins Capital Management Inc reported 80 positions worth $135.72M for the quarter ended Sep 30, 2026, up 4.9% on the prior quarter. It opened 10 new positions, added to 15, trimmed 24 and exited 3. Its largest holding is Natera, Inc. at 12.3% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| MASS 908 Devices Inc. | +135.1K | – | $1.67M | 1.23% |
| MDXG Mimedx Group, Inc. | +260.5K | – | $1.21M | 0.894% |
| CSTL Castle Biosciences Inc | +33.2K | +205.5% | $1.18M | 1.29% |
| SSYS Stratasys Ltd. | +138.3K | – | $1.15M | 0.846% |
| AVEX AEVEX Corp. | +63.6K | – | $962.53K | 0.709% |
| TELA TELA Bio, Inc. | +707.3K | +51.4% | $813.45K | 1.76% |
| CDXS Codexis, Inc. | +495.8K | +94.2% | $689.09K | 1.05% |
| BDSX Biodesix Inc | +16.7K | +37.5% | $498.67K | 1.35% |
| BLNE Beeline Holdings, Inc. | +543.2K | +228.2% | $456.29K | 0.483% |
| ZETA Zeta Global Holdings Corp. | +13.3K | +23.8% | $420.67K | 1.61% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| ONDS Ondas Inc. | -201.5K | -100.0% | $1.66M | Exited |
| BLZE Backblaze, Inc. | -106.7K | -34.6% | $1.49M | 2.08% |
| USIO Usio, Inc. | -436.4K | -62.3% | $1.17M | 0.523% |
| BP Bp Plc | -8,650 | -100.0% | $319.62K | Exited |
| AMD Advanced Micro Devices Inc | -500 | -3.6% | $305.88K | 6.04% |
| INUV Inuvo, Inc. | -422.7K | -82.1% | $238.07K | 0.038% |
| QUIK QUICKLOGIC Corp | -13.5K | -5.2% | $153.08K | 2.04% |
| PSNL Personalis, Inc. | -9,000 | -3.8% | $146.52K | 2.76% |
| MRNA Moderna, Inc. | -500 | -12.5% | $96.29K | 0.497% |
| NTRA Natera, Inc. | -225 | -0.6% | $92.99K | 12.3% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| MASS 908 Devices Inc. | +135.1K | $1.67M | 1.23% |
| MDXG Mimedx Group, Inc. | +260.5K | $1.21M | 0.894% |
| SSYS Stratasys Ltd. | +138.3K | $1.15M | 0.846% |
| AVEX AEVEX Corp. | +63.6K | $962.53K | 0.709% |
| CDNA CareDx, Inc. | +6,000 | $390.00K | 0.287% |
| IONQ IonQ, Inc. | +5,806 | $254.65K | 0.188% |
| ANIP Ani Pharmaceuticals Inc | +3,366 | $244.54K | 0.18% |
| P Everpure, Inc. | +1,750 | $228.87K | 0.169% |
| TXG 10x Genomics, Inc. | +2,500 | $225.90K | 0.166% |
| STIM Neuronetics, Inc. | +16.0K | $37.44K | 0.028% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | NTRA Natera, Inc. | Healthcare | 40.4K | $16.69M | 12.3% | -225 | -0.6% | Reduced | 0.03% |
| 2 | LLY ELI LILLY & Co | Healthcare | 8,680 | $10.04M | 7.4% | 0 | 0.0% | Unchanged | 0% |
| 3 | AMD Advanced Micro Devices Inc | Technology | 13.4K | $8.20M | 6.04% | -500 | -3.6% | Reduced | 0% |
| 4 | BFLY Butterfly Network, Inc. | Healthcare | 858.6K | $7.69M | 5.67% | -9,000 | -1.0% | Reduced | 0.32% |
| 5 | AXGN Axogen, Inc. | Healthcare | 145.8K | $6.11M | 4.5% | -2,000 | -1.4% | Reduced | 0.24% |
| 6 | MSFT Microsoft Corp | Technology | 11.2K | $5.73M | 4.22% | 0 | 0.0% | Unchanged | 0% |
| 7 | IDXX Idexx Laboratories Inc | Healthcare | 9,700 | $5.07M | 3.73% | 0 | 0.0% | Unchanged | 0.01% |
| 8 | PSNL Personalis, Inc. | Healthcare | 230.0K | $3.74M | 2.76% | -9,000 | -3.8% | Reduced | 0.22% |
| 9 | OOMA Ooma Inc | Technology | 177.0K | $3.62M | 2.66% | 0 | 0.0% | Unchanged | 0.64% |
| 10 | CYRX Cryoport, Inc. | Industrials | 198.5K | $3.45M | 2.55% | -1,350 | -0.7% | Reduced | 0.39% |
| 11 | BLZE Backblaze, Inc. | Technology | 202.0K | $2.83M | 2.08% | -106.7K | -34.6% | Reduced | 0.32% |
| 12 | QUIK QUICKLOGIC Corp | Technology | 244.1K | $2.77M | 2.04% | -13.5K | -5.2% | Reduced | 1.33% |
| 13 | VCYT Veracyte, Inc. | Healthcare | 60.0K | $2.76M | 2.03% | 0 | 0.0% | Unchanged | 0.07% |
| 14 | MGNI Magnite, Inc. | Technology | 98.4K | $2.48M | 1.83% | -250 | -0.3% | Reduced | 0.07% |
| 15 | TELA TELA Bio, Inc. | Healthcare | 2.08M | $2.39M | 1.76% | +707.3K | +51.4% | Added | 3.63% |
Tip. Select a row to see that position’s full history at Perkins Capital Management.
As of its Q3 2026 13F filing, Perkins Capital Management Inc’s five largest positions were Natera, Inc. (NTRA) at 12.3%, ELI LILLY & Co (LLY) at 7.4%, Advanced Micro Devices Inc (AMD) at 6.0%, Butterfly Network, Inc. (BFLY) at 5.7%, Axogen, Inc. (AXGN) at 4.5% of the reported portfolio.
Perkins Capital Management Inc reported a 13F portfolio worth $135.72M across 80 positions for Q3 2026. That is up 4.9% from the previous quarter.
Its largest purchases by value were 908 Devices Inc. ($1.67M), Mimedx Group, Inc. ($1.21M), Castle Biosciences Inc ($1.18M). It opened 10 new positions.
Its largest sales by value were Ondas Inc. ($1.66M), Backblaze, Inc. ($1.49M), Usio, Inc. ($1.17M). It exited 3 positions entirely.
From the Form 13F-HR reports Perkins Capital Management Inc files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.