WESTPORT ASSET MANAGEMENT INC — 13F Holdings & Portfolio
CIK 811454 · latest 13F-HR filed 2026-05-15
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
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AUM
$226.5M
Long-equity book
Holdings
78
Distinct positions
Period
2026-03-31
Filed 2026-05-15
Q/Q Activity
+6 / −3 / ↑30 / ↓26
vs 2025-12-31
Firm Profile & Key People
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- Lumentum Holdings Inc$5.1M +331.9%
- IPG Photonics Corp$2.7M +44.7%
- Coherent Inc$1.8M +121.1%
- EOG Resources Inc$1.3M +28.9%
- Ross Stores Inc$1.1M +42.2%
Top Trims
- Oracle Corp-$5.1M -47.7%
- Synopsys Inc-$5.0M -19.6%
- Willis Towers Watson PLC-$3.8M -15.8%
- Zebra Technologies Corp-$3.0M -29.6%
- Check Point Software Technolog-$2.1M -31.0%
New Positions
- Covista Inc$14.5M
- Verisk Analytics Inc$1.6M
- S&P Global Inc$1.3M
- Waters Corp$696.3K
- Zscaler Inc$631.3K
Exited Positions
- Adtalem Global Education Inc.$19.4M
- Skechers U.S.A. Inc$947.0K
- Nutrien Ltd$654.6K
All Holdings
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | Synopsys Inc | SNPS | 871607107 | $20.5M | 9.05% | 51,679 | SH |
| 2 | Willis Towers Watson PLC | WTW | G96629103 | $20.1M | 8.89% | 69,234 | SH |
| 3 | Covista Inc | CVSA | 00737L103 | $14.5M | 6.40% | 125,759 | SH |
| 4 | Universal Health Services Inc | UHS | 913903100 | $11.6M | 5.14% | 65,059 | SH |
| 5 | MGIC Investment Corp | MTG | 552848103 | $11.5M | 5.09% | 439,013 | SH |
| 6 | IPG Photonics Corp | IPGP | 44980X109 | $8.9M | 3.92% | 77,500 | SH |
| 7 | Zebra Technologies Corp | ZBRA | 989207105 | $7.2M | 3.17% | 34,335 | SH |
| 8 | Alphabet Inc | GOOG | 02079K107 | $6.9M | 3.04% | 24,000 | SH |
| 9 | Darden Restaurants Inc | DRI | 237194105 | $6.9M | 3.03% | 35,000 | SH |
| 10 | Lumentum Holdings Inc | LITE | 55024U109 | $6.7M | 2.95% | 9,500 | SH |
| 11 | United Rentals Inc | URI | 911363109 | $5.8M | 2.57% | 8,000 | SH |
| 12 | iShares MSCI Emerging Markets | EEM | 464287234 | $5.7M | 2.51% | 100,000 | SH |
| 13 | EOG Resources Inc | EOG | 26875P101 | $5.6M | 2.48% | 38,889 | SH |
| 14 | Oracle Corp | ORCL | 68389X105 | $5.6M | 2.47% | 38,000 | SH |
| 15 | Check Point Software Technolog | CHKP | M22465104 | $4.6M | 2.04% | 32,300 | SH |
| 16 | Uber Technologies Inc | UBER | 90353T100 | $4.5M | 1.99% | 62,577 | SH |
| 17 | Linde PLC | LIN | G5494J103 | $4.5M | 1.97% | 9,000 | SH |
| 18 | PTC Inc | PTC | 69370C100 | $4.4M | 1.96% | 31,100 | SH |
| 19 | Radian Group Inc | RDN | 750236101 | $4.3M | 1.90% | 130,371 | SH |
| 20 | Ross Stores Inc | ROST | 778296103 | $3.7M | 1.63% | 17,000 | SH |
| 21 | Republic Services Inc | RSG | 760759100 | $3.3M | 1.45% | 15,000 | SH |
| 22 | Rockwell Automation Inc | ROK | 773903109 | $3.2M | 1.43% | 9,000 | SH |
| 23 | Coherent Inc | — | 192479103 | $3.2M | 1.42% | 13,500 | SH |
| 24 | Timberland Bancorp Inc/WA | TSBK | 887098101 | $3.2M | 1.41% | 80,909 | SH |
| 25 | Akamai Technologies, Inc. | AKAM | 00971T101 | $3.2M | 1.40% | 27,700 | SH |
| 26 | Carrier Global Corp | CARR | 14448C104 | $3.0M | 1.30% | 52,400 | SH |
| 27 | CACI International Inc | CACI | 127190304 | $2.7M | 1.20% | 5,000 | SH |
| 28 | International Business Machine | IBM | 459200101 | $2.4M | 1.07% | 10,000 | SH |
| 29 | Ryman Hospitality Properties I | RHP | 78377T107 | $2.3M | 1.02% | 25,000 | SH |
| 30 | Rogers Corp | ROG | 775133101 | $2.2M | 0.97% | 20,456 | SH |
| 31 | Union Pacific Corp | UNP | 907818108 | $2.1M | 0.94% | 8,800 | SH |
| 32 | Warner Bros. Discovery, Inc. | WBD | 934423104 | $1.9M | 0.85% | 69,822 | SH |
| 33 | Norfolk Southern Corp | NSC | 655844108 | $1.7M | 0.76% | 6,000 | SH |
| 34 | Charter Communications Inc | CHTR | 16119P108 | $1.6M | 0.72% | 7,559 | SH |
| 35 | Verisk Analytics Inc | VRSK | 92345Y106 | $1.6M | 0.71% | 8,500 | SH |
| 36 | Eagle Materials Inc | EXP | 26969P108 | $1.5M | 0.67% | 8,000 | SH |
| 37 | Vertiv Holdings Co. | VRT | 92537N108 | $1.5M | 0.66% | 6,000 | SH |
| 38 | AstraZeneca PLC | AZN | 046353108 | $1.5M | 0.65% | 7,500 | SH |
| 39 | Gilead Sciences Inc | GILD | 375558103 | $1.4M | 0.62% | 10,000 | SH |
| 40 | CVS Health Corp | CVS | 126650100 | $1.3M | 0.56% | 17,772 | SH |
| 41 | S&P Global Inc | SPGI | 78409V104 | $1.3M | 0.56% | 3,000 | SH |
| 42 | Texas Instruments Inc | TXN | 882508104 | $1.2M | 0.52% | 6,026 | SH |
| 43 | Vertex Pharmaceuticals Inc | VRTX | 92532F100 | $1.1M | 0.49% | 2,500 | SH |
| 44 | AT&T Inc | T | 00206R102 | $925.3K | 0.41% | 31,919 | SH |
| 45 | Bio-Rad Laboratories Inc | BIO | 090572207 | $836.2K | 0.37% | 3,000 | SH |
| 46 | Electronic Arts Inc. | EA | 285512109 | $815.5K | 0.36% | 4,000 | SH |
| 47 | Raytheon Technologies Corp | RTX | 75513E101 | $796.1K | 0.35% | 4,127 | SH |
| 48 | Amazon.com Inc | AMZN | 023135106 | $774.8K | 0.34% | 3,720 | SH |
| 49 | Air Products & Chemicals Inc | APD | 009158106 | $726.2K | 0.32% | 2,500 | SH |
| 50 | MDU Resources Group Inc | MDU | 552690109 | $725.2K | 0.32% | 35,000 | SH |
Filing History
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $226.5M | 78 | 0001398344-26-009311 |
| 2025-12-31 | 2026-02-04 | $239.7M | 75 | 0001398344-26-002171 |
| 2025-09-30 | 2025-11-12 | $239.8M | 75 | 0001398344-25-020710 |