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Disclosed positions
JOHN G ULLMAN & ASSOCIATES INC: source evidence dated 2026-08-12T03:59:59.999Z.
- Issuer
- CORNING INC
- Ticker
- GLW
- Class
- COM
- Reported value
- $59,736,074
- Reported amount
- 233,865
- Unit
- SH
- Option
- None
The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.
What was reported for this quarter?
13F positions are dated quarter-end holdings, with later publication and possible amendments. Read report period and availability before calling them current.
SEC 13F-HR: 0000919530-26-000003Open the effective filing receipt and inspect shares, value and any put/call classification separately.
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Disclosed positions
See the complete disclosed positions
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| CORNING INC | GLW | COM | $59,736,074 | 233,865 | SH | None |
| TAIWAN SEMICONDUCTOR M F SPONS | TSM | ADR | $51,510,700 | 107,860 | SH | None |
| CISCO SYSTEMS INC | CSCO | COM | $37,187,014 | 316,593 | SH | None |
| EMERSON ELEC CO | EMR | COM | $35,545,614 | 248,310 | SH | None |
| OGE ENERGY CORP | OGE | COM | $22,331,777 | 458,935 | SH | None |
| BROADCOM INC | AVGO | COM | $21,209,529 | 56,147 | SH | None |
| TE CONNECTIVITY PLC F | TEL | COM | $18,984,606 | 94,165 | SH | None |
| AMAZON.COM INC | AMZN | COM | $15,068,808 | 63,224 | SH | None |
| BLOOM ENERGY CORP CLASS A | BE | COM | $14,940,969 | 49,359 | SH | None |
| ESSENTIAL UTILS INC | WTRG | COM | $14,566,688 | 380,232 | SH | None |
| EXXON MOBIL HOLDINGS CORP | XOM | COM | $14,280,350 | 104,450 | SH | None |
| DOMINION ENERGY INC | D | COM | $13,463,100 | 197,146 | SH | None |
| EVERSOURCE ENERGY | ES | COM | $13,282,576 | 183,791 | SH | None |
| NEXTERA ENERGY INC | NEE | COM | $13,039,055 | 148,559 | SH | None |
| IBM CORP | IBM | COM | $12,449,167 | 44,270 | SH | None |
| SCHLUMBERGER LTD F | SLB | COM | $12,369,594 | 266,070 | SH | None |
| MERCK & CO. INC. | MRK | COM | $12,082,738 | 94,029 | SH | None |
| LINDSAY CORP | LNN | COM | $11,855,088 | 95,760 | SH | None |
| GENERAC HLDGS INC | GNRC | COM | $11,593,812 | 39,595 | SH | None |
| MICROSOFT CORP | MSFT | COM | $10,847,251 | 29,080 | SH | None |
| PORTLAND GENERAL ELECTRIC CO | POR | COM | $10,515,374 | 202,882 | SH | None |
| INTEL CORP | INTC | COM | $10,332,480 | 73,999 | SH | None |
| ASTEC INDUSTRIES INC | ASTE | COM | $9,188,596 | 150,165 | SH | None |
| FLOWSERVE CORP | FLS | COM | $9,175,446 | 123,725 | SH | None |
| DISNEY WALT CO | DIS | COM | $8,951,924 | 93,007 | SH | None |
| EAGLE MATLS INC | EXP | COM | $8,380,350 | 37,246 | SH | None |
| CACI INTL INC CLASS A | CACI | COM | $8,303,472 | 17,924 | SH | None |
| BRISTOL-MYERS SQUIBB | BMY | COM | $8,234,082 | 142,903 | SH | None |
| GRANITE CONSTR INC | GVA | COM | $8,118,198 | 51,355 | SH | None |
| ALPHABET INC CLASS A | GOOGL | COM | $8,083,842 | 22,620 | SH | None |
| WESTERN DIGITAL CORP | WDC | COM | $7,978,252 | 12,491 | SH | None |
| JAZZ PHARMACEUTICALS P F | JAZZ | COM | $7,878,032 | 32,693 | SH | None |
| EVERUS CONSTRUCTION GROUP ORD | ECG | COM | $7,850,099 | 47,304 | SH | None |
| EQT CORP | EQT | COM | $7,831,462 | 147,291 | SH | None |
| GORMAN RUPP CO CLASS EQUITY | GRC | COM | $7,802,028 | 85,045 | SH | None |
| M D U RESOURCES GRP | MDU | COM | $7,611,166 | 358,848 | SH | None |
| TWILIO CL A ORD | TWLO | COM | $6,966,939 | 33,766 | SH | None |
| MERCADOLIBRE ORD | MELI | COM | $6,789,560 | 4,000 | SH | None |
| ITRON INC | ITRI | COM | $6,726,063 | 77,731 | SH | None |
| VULCAN MATLS CO | VMC | COM | $6,667,226 | 22,600 | SH | None |
| STATE STR CORP | STT | COM | $6,612,365 | 38,988 | SH | None |
| TOMPKINS FINL CORP | TMP | COM | $6,420,933 | 67,932 | SH | None |
| NEW JERSEY RES CORP | NJR | COM | $6,162,158 | 109,960 | SH | None |
| ALPHABET INC CLASS C | GOOG | COM | $5,896,371 | 16,688 | SH | None |
| CIENA CORP | CIEN | COM | $5,751,816 | 11,725 | SH | None |
| SYSCO CORP | SYY | COM | $5,670,652 | 67,847 | SH | None |
| THERMO FISHER SCIENTIFIC | TMO | COM | $5,614,229 | 11,198 | SH | None |
| PFIZER INC | PFE | COM | $5,519,509 | 229,216 | SH | None |
| KEURIG DR PEPPER INC | KDP | COM | $5,319,738 | 162,534 | SH | None |
| VANGUARD S&P 500 ETF | VOO | ETF | $5,307,668 | 7,728 | SH | None |
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Largest 50 positions by reported value; the filing may contain more positions.
How amendments affect these holdings
This view uses 1 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 4 positions lack a resolved ticker and 0 positions are put or call entries.
A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.
Quarter end and public filing date
Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.