Stocks/Funds/CIK 919530

JOHN G ULLMAN & ASSOCIATES INC

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 919530
Assets
$754M
+16.3% YoY
Holdings
174
Lifetime alpha vs market
+4.25% annual
Average hold time
4.8 yr
median 4.3 yr

Quarterly history

Cum return +80% vs S&P +52% · α +28% lifetimeAUM $754M · peak $768MFlow $-84M (-11%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-5.71%
trims when stocks drop
when a holding falls −10%+
Middle response
-3.35%
baseline attrition
Rally response
-5.20%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
GLWCorning Incorporated$43M5.8%+201.5%10.5 yr
TSMTaiwan Semiconductor Man$41M5.4%+105.6%9.5 yr
EMREmerson Electric Co.$33M4.4%+21.5%10.5 yr
$25M3.3%7.5 yr
OGEOGE Energy Corp.$23M3.1%+7.5%10.5 yr
$20M2.6%1.8 yr
$18M2.4%1.8 yr
$18M2.4%1.8 yr
BEBloom Energy Corporation$17M2.3%+589.2%4.8 yr
$16M2.2%1.8 yr
$14M1.8%7.5 yr
SLBSLB N.V.$14M1.8%+26.7%10.0 yr
$13M1.8%1.8 yr
AMZNAmazon.com, Inc.$13M1.7%+9.5%4.5 yr
$12M1.6%5.5 yr

Portfolio composition (YoY)

Industry mix
Unknown35.8%+3.9pp$270M
Industrial - Machinery7.4%+0.2pp$56M
Hardware, Equipment & Parts7.0%+1.4pp$53M
Semiconductors6.7%+1.7pp$51M
Regulated Electric6.4%-0.5pp$49M
Information Technology Services2.9%-2.8pp$22M
Agricultural - Machinery2.6%+0.4pp$19M
Drug Manufacturers - General2.5%-3.4pp$19M
Electrical Equipment & Parts2.3%+1.4pp$17M
Oil & Gas Equipment & Services2.2%+0.2pp$17M
Country
US57.5%-3.8pp
Unknown35.8%+3.9pp
TW5.4%+1.8pp
CA0.4%+0.1pp
UY0.4%
GB0.3%+0.0pp
SG0.1%-0.1pp
IE0.0%+0.0pp
Top 5: 21.9% · Top 10: 33.7% · Top 25: 56.5%

Winners

TickerPrev $PnLYoY %
GLW$26M+0.05B201.5%
BE$6M+0.03B589.2%
TSM$23M+0.02B105.6%
WDC$4M+0.02B571.9%
ECG$3M+0.01B218.3%

Losers

TickerPrev $PnLYoY %
LNN$7M-0.00B-4.8%
DIS$9M-0.00B-1.3%
MSFT$12M-0.00B-0.6%
IBM$21M-0.00B-0.1%

Top buys this quarter · 15

MELI MercadoLibre, Inc.new+$3M
ITRI Itron, Inc.+$2M
TWLO Twilio Inc.+$2M
EHC Encompass Health Corporation+$1M
MHK Mohawk Industries, Inc.new+$1M
DIS The Walt Disney Company+$8M
LNN Lindsay Corporation+$1M
BDX Becton, Dickinson and Company+$0M
PLNT Planet Fitness, Inc.+$1M
STX Seagate Technology Holdings pl+$0M

Top sells this quarter · 15

SNDK Sandisk Corporationexit$11M
GLW Corning Incorporated$34M
WDC Western Digital Corporation$8M
EMR Emerson Electric Co.$4M
LITE Lumentum Holdings Inc.$3M
AMGN Amgen Inc.$2M
TSM Taiwan Semiconductor Manufactu$39M
GVA Granite Construction Incorpora$2M
INTC Intel Corporation$2M
CIEN Ciena Corporation$4M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$754M174+56.08%+17.59%+38.49%-0.08B
2025-12-31$750M179+35.31%+17.72%+17.60%-0.04B
2025-09-30$743M173+30.73%+17.52%+13.21%-0.05B
2025-06-30$674M174+19.20%+14.94%+4.26%-0.05B
2025-03-31$648M170+5.51%+8.30%-2.79%-0.01B
2024-12-31$680M172+17.76%+24.89%-7.13%-0.04B
2024-09-30$696M179+23.46%+36.04%-12.58%-0.00B
2024-06-30$655M179+10.39%+24.49%-14.10%+0.01B
2024-03-31$652M174+13.83%+29.62%-15.79%-0.03B
2023-12-31$630M169+5.73%+26.18%-20.45%-0.03B
2023-09-30$611M173+11.18%+21.57%-10.39%-0.01B
2023-06-30$648M177+7.03%+19.42%-12.39%-0.01B
2023-03-31$643M177-4.13%-7.82%+3.69%+0.01B
2022-12-31$627M169+13.59%+7.56%+6.03%-0.02B
2022-09-30$572M157-8.17%-4.93%-3.24%-0.00B
2022-06-30$623M157-8.52%-16.11%+7.59%-0.04B