Institutional Manager · CIK 0001134007
NEXT CENTURY GROWTH INVESTORS LLC
PLYMOUTH, MN · File #028-06277
Latest AUM
$1.44B
Positions
121
Top-10 Concentration
37.1%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| NEW | Axogen Inc | AXGN | +799,882 | +$26.2M | $0 |
| EXITED | Argan Inc | 04010E109 | -65,964 | -$17.8M | $0 |
| NEW | Almonty Industries | 020398707 | +1,855,260 | +$16.3M | $0 |
| NEW | Applied Optoelectronics | AAOI | +465,288 | +$16.2M | $0 |
| EXITED | Avepoint Inc | 053604104 | -1,028,663 | -$15.4M | $0 |
| REDUCE | Impinj Inc | PI | -87,197 | -$15.2M | -$705,282 |
| REDUCE | Planet Labs PBC | PL-WT | -712,365 | -$14.0M | +$12.0M |
| ADD | ADMA Biologics | ADMA | +705,217 | +$12.9M | +$1.4M |
| ADD | Coastal Financial Corp | 19046P209 | +100,731 | +$11.5M | +$497,506 |
| NEW | Tactile Systems | 87357P100 | +389,980 | +$11.3M | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025121 pos · $1.44B
- 13F HOLDINGS REPORTQ/E Sep 2025124 pos · $1.37B
- 13F HOLDINGS REPORTQ/E Jun 2025123 pos · $1.29B
- 13F HOLDINGS REPORTQ/E Mar 2025123 pos · $1.12B
- 13F HOLDINGS REPORTQ/E Dec 2024130 pos · $1.33B
- 13F HOLDINGS REPORTQ/E Sep 2024127 pos · $1.23B
- 13F HOLDINGS REPORTQ/E Jun 2024122 pos · $1.20B
- 13F HOLDINGS REPORTQ/E Mar 2024120 pos · $1.15B
- 13F HOLDINGS REPORTQ/E Dec 2023109 pos · $919.5M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | Astronics Corp | ATROB | 1,067,612 | $57.9M | 5.30% |
| 2 | Alphatec Holdings Inc | ATEC | 2,418,298 | $50.9M | 4.66% |
| 3 | Xometry Inc | XMTR | 803,613 | $47.8M | 4.38% |
| 4 | Artivion Inc | AORT | 1,044,395 | $47.6M | 4.36% |
| 5 | Alignment Healthcare | ALHC | 2,308,287 | $45.6M | 4.18% |
| 6 | Paymentus Holdings | PAY | 1,181,624 | $37.3M | 3.42% |
| 7 | iRhythm Holdings | IRTC | 172,838 | $30.7M | 2.81% |
| 8 | Universal Technical Institute | UTI | 1,123,067 | $29.3M | 2.69% |
| 9 | Mirum Pharmaceuticals | MIRM | 368,035 | $29.1M | 2.66% |
| 10 | MYR Group Inc | MYRG | 132,496 | $29.0M | 2.65% |
| 11 | Axogen Inc | AXGN | 799,882 | $26.2M | 2.40% |
| 12 | Sterling Infrastruture | STRL | 81,939 | $25.1M | 2.30% |
| 13 | FTAI Aviation | FTAIN | 117,912 | $23.2M | 2.13% |
| 14 | Nvidia Corporation | NVDA | 124,203 | $23.2M | 2.12% |
| 15 | Lattice Semiconductor Corp | LSCC | 310,945 | $22.9M | 2.10% |
| 16 | Mama's Creations | 56146T103 | 1,691,395 | $22.8M | 2.09% |
| 17 | GeneDx Holdings | WGSWW | 173,411 | $22.6M | 2.07% |
| 18 | JFrog | FROG | 357,976 | $22.4M | 2.05% |
| 19 | Apple Computer Inc | AAPL | 79,402 | $21.6M | 1.98% |
| 20 | MACOM Technology Solutions Hol | 55405Y100 | 125,466 | $21.5M | 1.97% |