Institutional Manager · CIK 0000919530
JOHN G ULLMAN & ASSOCIATES INC
CORNING, NY · File #028-03893
Latest AUM
$750.0M
Positions
179
Top-10 Concentration
43.0%
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 |
|---|---|---|---|---|---|
| REDUCE | LUMENTUM HOLDINGS INC | LITE | -31,913 | -$11.8M | +$7.8M |
| REDUCE | BLOOM ENERGY CORP CLASS A | BE | -92,408 | -$8.0M | +$522,425 |
| REDUCE | BROADCOM INC | AVGO | -19,476 | -$6.7M | +$1.3M |
| REDUCE | IBM CORP | INTR | -19,325 | -$5.7M | +$955,681 |
| NEW | KEURIG DR PEPPER INC | KDP | +158,600 | +$4.4M | $0 |
| ADD | LINDSAY CORP | LNN | +24,325 | +$2.9M | -$1.3M |
| REDUCE | SANDISK CORP SNDK | SNDK | -11,533 | -$2.7M | +$3.5M |
| ADD | BCE INC F | BCPPF | +108,184 | +$2.6M | +$53,811 |
| REDUCE | TAIWAN SEMICONDUCTOR M F SPONS | 874039100 | -8,268 | -$2.5M | +$3.3M |
| REDUCE | ESSENTIAL UTILS INC | 29670g102 | -59,475 | -$2.3M | -$715,984 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025179 pos · $750.0M
- 13F HOLDINGS REPORTQ/E Sep 2025173 pos · $742.7M
- 13F HOLDINGS REPORTQ/E Jun 2025174 pos · $673.8M
- 13F HOLDINGS REPORTQ/E Mar 2025170 pos · $648.4M
- 13F HOLDINGS REPORTQ/E Dec 2024173 pos · $679.6M
- 13F HOLDINGS REPORTQ/E Sep 2024179 pos · $695.5M
- 13F HOLDINGS REPORTQ/E Jun 2024179 pos · $655.5M
- 13F HOLDINGS REPORTQ/E Mar 2024174 pos · $651.8M
- 13F HOLDINGS REPORTQ/E Dec 2023173 pos · $611.3M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | TAIWAN SEMICONDUCTOR M F SPONS | 874039100 | 127,067 | $38.6M | 6.75% |
| 2 | EMERSON ELEC CO | EMR | 277,441 | $36.8M | 6.44% |
| 3 | CORNING INC | GLW | 383,531 | $33.6M | 5.87% |
| 4 | CISCO SYSTEMS INC | CSCO | 329,810 | $25.4M | 4.44% |
| 5 | TE CONNECTIVITY PLC F | TEL | 98,817 | $22.5M | 3.93% |
| 6 | BROADCOM INC | AVGO | 62,445 | $21.6M | 3.78% |
| 7 | OGE ENERGY CORP | OGE | 499,099 | $21.3M | 3.73% |
| 8 | ESSENTIAL UTILS INC | 29670g102 | 405,450 | $15.6M | 2.72% |
| 9 | AMAZON.COM INC | AMZN | 67,287 | $15.5M | 2.72% |
| 10 | MICROSOFT CORP | MSFT | 31,311 | $15.1M | 2.65% |
| 11 | IBM CORP | INTR | 48,695 | $14.4M | 2.52% |
| 12 | EVERSOURCE ENERGY | ES | 194,800 | $13.1M | 2.29% |
| 13 | EXXON MOBIL CORP | XOM | 105,167 | $12.7M | 2.21% |
| 14 | NEXTERA ENERGY INC | NEE-PW | 154,553 | $12.4M | 2.17% |
| 15 | BLOOM ENERGY CORP CLASS A | BE | 132,775 | $11.5M | 2.02% |
| 16 | DOMINION ENERGY INC | D | 193,488 | $11.3M | 1.98% |
| 17 | WESTERN DIGITAL CORP | WDC | 64,308 | $11.1M | 1.94% |
| 18 | AMERICAN TOWER CORP NEW REIT | AMT | 61,218 | $10.7M | 1.88% |
| 19 | MERCK & CO. INC. | MRK | 101,322 | $10.7M | 1.87% |
| 20 | PORTLAND GENERAL ELECTRIC CO | 736508847 | 217,784 | $10.5M | 1.83% |