Institutions / Portolan Capital Management, LLC / Activity
Activity — Portolan Capital Management, LLC
181 moves.
| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Q1 2026 as of | Trim | Establishment Labs Holdings Inc. Common stock | $-4.83M | -85K -89.89% | 9,573 0.03% of portfolio | low |
| Q1 2026 as of | Add | Forrester Research, Inc. Common stock | $4.73M | +836K +118.39% | 1,541,276 0.46% of portfolio | low |
| Q1 2026 as of | New | Onto Innovation Inc. Common stock | $4.57M | +22K | 22,263 0.24% of portfolio | low |
| Q1 2026 as of | New | ProPetro Holding Corp. Common stock | $4.54M | +315K | 314,815 0.24% of portfolio | low |
| Q1 2026 as of | Add | Park Aerospace Corp Common stock | $4.53M | +166K +67.59% | 410,655 0.60% of portfolio | low |
| Q1 2026 as of | Trim | Lantheus Holdings, Inc. Common stock | $-4.43M | -58K -12.27% | 417,390 1.68% of portfolio | low |
| Q1 2026 as of | Exit | 679369108 Common stock | $-4.13M | -3.1M -100.00% | 0 | low |
| Q1 2026 as of | Exit | N72482206 Common stock | $-4.06M | -90K -100.00% | 0 | low |
| Q1 2026 as of | Trim | G38644103 Common stock | $-3.88M | -85K -62.17% | 52,014 0.13% of portfolio | low |
| Q1 2026 as of | Exit | M84137104 Common stock | $-3.69M | -493K -100.00% | 0 | low |
| Q1 2026 as of | Add | Primoris Services Corp Common stock | $3.56M | +25K +23.56% | 130,626 0.99% of portfolio | low |
| Q1 2026 as of | Add | Talos Energy Inc. Common stock | $3.55M | +225K +189.29% | 344,549 0.29% of portfolio | low |
| Q1 2026 as of | Trim | Vicor Corp Common stock | $-3.55M | -22K -45.26% | 26,670 0.23% of portfolio | low |
| Q1 2026 as of | New | FPS Forgent Power Solutions, Inc. Common Stock | $3.45M | +118K | 117,933 0.18% of portfolio | low |
| Q1 2026 as of | Exit | Mercury Systems Inc Common stock | $-3.38M | -46K -100.00% | 0 | low |
| Q1 2026 as of | Trim | elf Beauty Inc Common stock | $-3.37M | -56K -28.92% | 136,707 0.44% of portfolio | low |
| Q1 2026 as of | New | 26142Q304 Common stock | $3.35M | +683K | 682,730 0.18% of portfolio | low |
| Q1 2026 as of | Trim | Digi International Inc Common stock | $-3.24M | -67K -28.33% | 170,256 0.44% of portfolio | low |
| Q1 2026 as of | Exit | Ouster, Inc. Common stock | $-3.14M | -145K -100.00% | 0 | low |
| Q1 2026 as of | Exit | QMCO Quantum Corp /De Common Stock | $-3.08M | -477K -100.00% | 0 | low |
| Q1 2026 as of | Add | XPEV Xpeng Inc. ADR | $3.05M | +179K +184.16% | 275,432 0.25% of portfolio | low |
| Q1 2026 as of | Add | GeneDx Holdings Corp. Common stock | $3.01M | +47K +83.91% | 102,575 0.35% of portfolio | low |
| Q1 2026 as of | Exit | Microsoft Corp Common stock | $-2.89M | -6K -100.00% | 0 | low |
| Q1 2026 as of | Trim | XZO Exzeo Group, Inc. Common Stock | $-2.86M | -195K -48.18% | 209,885 0.16% of portfolio | low |
| Q1 2026 as of | Exit | Super Micro Computer, Inc. Common stock | $-2.83M | -97K -100.00% | 0 | low |
| Q1 2026 as of | Add | Ambarella Inc Common stock | $2.81M | +55K +100.49% | 108,749 0.30% of portfolio | low |
| Q1 2026 as of | Add | Willdan Group, Inc. Common stock | $2.78M | +36K +63.10% | 93,964 0.38% of portfolio | low |
| Q1 2026 as of | Trim | Nextpower Inc. Common stock | $-2.78M | -23K -28.88% | 56,747 0.36% of portfolio | low |
| Q1 2026 as of | Add | 68373J104 Common stock | $2.71M | +2.2M +45.73% | 6,902,888 0.46% of portfolio | low |
| Q1 2026 as of | Trim | Kratos Defense & Security Solutions Inc Common stock | $-2.41M | -34K -11.63% | 259,811 0.97% of portfolio | low |
| Q1 2026 as of | Exit | indie Semiconductor, Inc. Common stock | $-2.37M | -672K -100.00% | 0 | low |
| Q1 2026 as of | Add | Mobileye Global Inc. Common stock | $2.31M | +336K +98.32% | 678,135 0.25% of portfolio | low |
| Q1 2026 as of | Trim | Enova International, Inc. Common stock | $-2.30M | -17K -17.30% | 80,923 0.58% of portfolio | low |
| Q1 2026 as of | Add | PSNL Personalis, Inc. Common Stock | $2.28M | +358K +94.28% | 736,713 0.25% of portfolio | low |
| Q1 2026 as of | Exit | Alexandria Real Estate Equities Inc Common stock | $-2.13M | -44K -100.00% | 0 | low |
| Q1 2026 as of | Add | Talen Energy Corp Common stock | $2.10M | +7K +8.79% | 81,574 1.39% of portfolio | low |
| Q1 2026 as of | New | Ultra Clean Holdings Inc Common stock | $2.10M | +34K | 33,700 0.11% of portfolio | low |
| Q1 2026 as of | Exit | Gates Industrial Corp PLC Common stock | $-2.09M | -97K -100.00% | 0 | low |
| Q1 2026 as of | Exit | Oracle Corp Common stock | $-1.86M | -10K -100.00% | 0 | low |
| Q1 2026 as of | Exit | G8068L108 Common stock | $-1.78M | -16K -100.00% | 0 | low |
| Q1 2026 as of | Trim | Powell Industries Inc Common stock | $-1.78M | -3K -4.15% | 75,830 2.18% of portfolio | low |
| Q1 2026 as of | Add | Jabil Inc Common stock | $1.74M | +7K +9.24% | 77,197 1.09% of portfolio | low |
| Q1 2026 as of | New | Kosmos Energy Ltd Common stock | $1.68M | +603K | 602,542 0.09% of portfolio | low |
| Q1 2026 as of | Add | 358010106 Common stock | $1.64M | +37K +32.78% | 150,141 0.35% of portfolio | low |
| Q1 2026 as of | Trim | Flex Ltd. Common stock | $-1.56M | -24K -5.09% | 443,128 1.54% of portfolio | low |
| Q1 2026 as of | Exit | Vertiv Holdings Co Common stock | $-1.46M | -9K -100.00% | 0 | low |
| Q1 2026 as of | Add | Sprout Social, Inc. Common stock | $1.46M | +257K +85.21% | 558,350 0.17% of portfolio | low |
| Q1 2026 as of | Trim | Amplitude, Inc. Common stock | $-1.37M | -201K -35.80% | 359,593 0.13% of portfolio | low |
| Q1 2026 as of | Add | Allient Inc Common stock | $1.27M | +22K +7.14% | 323,453 1.02% of portfolio | low |
| Q1 2026 as of | Trim | Tapestry Inc Common stock | $-1.25M | -9K -34.13% | 17,038 0.13% of portfolio | low |