Institutional Manager · CIK 0001277279
THOMPSON INVESTMENT MANAGEMENT, INC.
MADISON, WI · File #028-10877
Latest AUM
$797.7M
Positions
526
Top-10 Concentration
38.0%
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 HLDGS INC COM | LITE | -40,676 | -$15.0M | +$12.7M |
| ADD | GENERAL ELECTRIC CO COM NEW | 369604301 | +24,927 | +$7.7M | +$145 |
| REDUCE | ALPHABET INC CAP STK CL A | GOOG | -17,569 | -$5.5M | +$11.5M |
| REDUCE | COHERENT INC COM | COHR | -21,643 | -$4.0M | +$5.4M |
| REDUCE | WARNER BROTHERS DISCOVERY | WBD | -124,857 | -$3.6M | +$11.7M |
| ADD | SALESFORCE INC COM | CRM | +13,459 | +$3.6M | +$247,924 |
| ADD | ALEXANDRIA REAL ESTATE EQ INC | 015271109 | +59,613 | +$2.9M | -$3.9M |
| NEW | CLOROX CO | CLX | +26,314 | +$2.7M | $0 |
| ADD | FISERV INC | FISV | +39,232 | +$2.6M | -$3.0M |
| ADD | CONCENTRIX CORP COM | CNXC | +58,251 | +$2.4M | -$721,620 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025526 pos · $797.7M
- 13F HOLDINGS REPORTQ/E Sep 2025526 pos · $749.7M
- 13F HOLDINGS REPORTQ/E Jun 2025497 pos · $708.6M
- 13F HOLDINGS REPORTQ/E Mar 2025491 pos · $667.2M
- 13F HOLDINGS REPORTQ/E Dec 2024505 pos · $695.9M
- 13F HOLDINGS REPORTQ/E Sep 2024515 pos · $700.4M
- 13F HOLDINGS REPORTQ/E Jun 2024514 pos · $647.6M
- 13F HOLDINGS REPORTQ/E Mar 2024529 pos · $661.3M
- 13F HOLDINGS REPORTQ/E Dec 2023417 pos · $562.7M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | ALPHABET INC CAP STK CL A | GOOG | 146,669 | $45.9M | 8.00% |
| 2 | WARNER BROTHERS DISCOVERY | WBD | 1,139,146 | $32.8M | 5.72% |
| 3 | MICROSOFT CORP | MSFT | 65,331 | $31.6M | 5.51% |
| 4 | EXXON MOBIL CORP COM | XOM | 154,654 | $18.6M | 3.25% |
| 5 | EXACT SCIENCES CORP COM | 30063P105 | 175,644 | $17.8M | 3.11% |
| 6 | CITIGROUP INC COM NEW | C-PR | 143,163 | $16.7M | 2.91% |
| 7 | QUALCOMM INC | QCOM | 82,077 | $14.0M | 2.45% |
| 8 | VIATRIS | VTRS | 1,112,510 | $13.9M | 2.42% |
| 9 | JPMORGAN CHASE & CO COM | VYLD | 42,192 | $13.6M | 2.37% |
| 10 | BANK OF AMERICA | 060505104 | 238,845 | $13.1M | 2.29% |
| 11 | META PLATFORMS | META | 19,148 | $12.6M | 2.20% |
| 12 | KORNIT DIGITAL LTD SHS | KRNT | 876,674 | $12.6M | 2.20% |
| 13 | APPLE INC COM | AAPL | 44,216 | $12.0M | 2.10% |
| 14 | CISCO SYSTEMS INC | CSCO | 151,473 | $11.7M | 2.03% |
| 15 | UNITEDHEALTH GROUP INC | UNH | 35,345 | $11.7M | 2.03% |
| 16 | PFIZER INC | PFE | 463,455 | $11.5M | 2.01% |
| 17 | LKQ CORP COM | LKQ | 374,299 | $11.3M | 1.97% |
| 18 | PEPSICO INC | PEP | 78,172 | $11.2M | 1.96% |
| 19 | PAYPAL HLDGS INC COM | PYPL | 181,944 | $10.6M | 1.85% |
| 20 | O-I GLASS INC COM | OI | 705,358 | $10.4M | 1.82% |