Stocks/Funds/CIK 1134007

NEXT CENTURY GROWTH INVESTORS LLC

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1134007
Assets
$1.38B
+22.7% YoY
Holdings
112
Lifetime alpha vs market
+0.19% annual
Average hold time
3.3 yr
median 2.0 yr

Quarterly history

Cum return +53% vs S&P +52% · α +1% lifetimeAUM $1.4B · peak $2.2BFlow $-51M (-4%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-14.58%
trims when stocks drop
when a holding falls −10%+
Middle response
-2.72%
baseline attrition
Rally response
-3.96%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
ATROAstronics Corporation$52M3.8%+176.1%5.3 yr
LINCLincoln Educational Serv$42M3.1%+156.3%2.0 yr
ALHCAlignment Healthcare, In$40M2.9%-5.4%1.5 yr
AORTArtivion, Inc.$37M2.7%+49.0%7.0 yr
MYRGMYR Group Inc.$37M2.7%+149.6%2.8 yr
MIRMMirum Pharmaceuticals, I$36M2.6%+105.1%1.8 yr
UTIUniversal Technical Inst$34M2.5%+40.6%2.0 yr
XMTRXometry, Inc.$32M2.3%+63.9%3.3 yr
PAYPaymentus Holdings, Inc.$29M2.1%-2.7%2.8 yr
MTSIMACOM Technology Solutio$29M2.1%+121.2%8.5 yr
AXGNAxoGen, Inc.$29M2.1%+79.1%3.3 yr
AEHRAehr Test Systems$28M2.0%+408.6%2.0 yr
STRLSterling Infrastructure,$27M2.0%+259.7%4.3 yr
AAOIApplied Optoelectronics,$27M2.0%+451.1%0.5 yr
MAMAMama's Creations, Inc.$27M1.9%+135.6%2.0 yr

Portfolio composition (YoY)

Industry mix
Semiconductors14.5%+10.0pp$200M
Medical - Devices10.0%+1.3pp$138M
Aerospace & Defense8.8%+3.1pp$121M
Engineering & Construction6.6%+1.4pp$90M
Biotechnology5.6%+1.3pp$78M
Education & Training Services5.6%+2.1pp$77M
Information Technology Services4.3%-5.8pp$59M
Medical - Healthcare Plans2.9%-0.2pp$40M
Software - Application2.8%-12.0pp$38M
Trucking2.7%-0.1pp$37M
Country
US94.3%-0.7pp
CA2.1%+1.7pp
Unknown1.7%+0.2pp
IL1.7%-0.7pp
SG0.1%
Top 5: 15.1% · Top 10: 26.8% · Top 25: 53.9%

Winners

TickerPrev $PnLYoY %
ATRO$31M+0.05B176.1%
MYRG$17M+0.03B149.6%
STRL$9M+0.02B259.7%
LINC$12M+0.02B156.3%
MTSI$15M+0.02B121.2%

Losers

TickerPrev $PnLYoY %
GLBE$15M-0.00B-13.5%
ALHC$35M-0.00B-5.4%
PAY$35M-0.00B-2.7%

Top buys this quarter · 15

UCTT Ultra Clean Holdings, Inc.new+$17M
HTFL Heartflow, Inc. Common Stocknew+$16M
GLBE Global-e Online Ltd.+$15M
LGND Ligand Pharmaceuticals Incorpo+$11M
MOD Modine Manufacturing Companynew+$11M
LINC Lincoln Educational Services C+$10M
ICHR Ichor Holdings, Ltd.new+$9M
FPS Forgent Power Solutions, Inc.new+$8M
AEHR Aehr Test Systems+$7M
TEX Terex Corporationnew+$6M

Top sells this quarter · 15

PL Planet Labs PBC$22M
ATRO Astronics Corporation$19M
VCEL Vericel Corporation$17M
PEN Penumbra, Inc.exit$16M
CCB Coastal Financial Corporationexit$14M
AAOI Applied Optoelectronics, Inc.$16M
WGS GeneDx Holdings Corp.exit$11M
APLD Applied Digital Corporation$9M
FROG JFrog Ltd.$8M
WULF TeraWulf Inc.$7M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$1.38B112+30.08%+17.59%+12.49%-0.05B
2025-12-31$1.44B121+14.29%+17.72%-3.43%-0.02B
2025-09-30$1.37B124+17.54%+17.52%+0.02%-0.03B
2025-06-30$1.29B123+13.79%+14.94%-1.15%+0.01B
2025-03-31$1.12B122+0.35%+8.30%-7.95%-0.04B
2024-12-31$1.33B130+25.76%+24.89%+0.87%-0.02B
2024-09-30$1.23B127+25.44%+36.04%-10.60%-0.02B
2024-06-30$1.20B122+5.77%+24.49%-18.72%+0.05B
2024-03-31$1.15B120+17.86%+29.62%-11.76%+0.03B
2023-12-31$1.03B116+25.15%+26.18%-1.03%+0.02B
2023-09-30$920M109+15.08%+21.57%-6.49%+0.00B
2023-06-30$1.04B108+39.72%+19.42%+20.29%+0.02B
2023-03-31$909M104-0.34%-7.82%+7.48%-0.06B
2022-12-31$833M100+0.36%+7.56%-7.20%+0.01B
2022-09-30$820M103+7.02%-4.93%+11.94%+0.00B
2022-06-30$765M111-20.11%-16.11%-4.00%-0.04B