Westport Asset Management Inc.

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), Westport Asset Management Inc. reported 78 stock positions worth $226.5 million. Its top holding was Synopsys (SNPS) at 9.0% of the portfolio, followed by Willis Towers Watson (WTW, 8.9%) and Covista (CVSA, 6.4%). Compared with Q4 2025, it opened 6 new positions, sold out of 3 and reduced 2. The biggest buy was a new position in Covista (CVSA) and the biggest sale an exit from Devry Ed.

Most Recent 13F
Q2 2026
Location
SOUTHPORT, CT
CIK
0000811454
Portfolio Value
$226.5M (Q1 2026)
SEC Filing
0001398344-26-009311 ↗ filed May 15, 2026

Holdings Value

0$50.0M$100.0M$150.0M$200.0M$250.0M Q1 2024: $200.2M Q1 2024 Q2 2024: $199.8M Q2 2024 Q3 2024: $213.3M Q3 2024 Q4 2024: $208.9M Q4 2024 Q1 2025: $206.2M Q1 2025 Q2 2025: $226.3M Q2 2025 Q3 2025: $239.8M Q3 2025 Q4 2025: $239.7M Q4 2025 Q1 2026: $226.5M $226.5M Q1 2026 Q2 2026: $244.9M Q2 2026

Holdings 78 stocks · $226.5M

SNPS Synopsys Inc. 9.05% 51,679 $20.5M No change
WTW Willis Towers Watson PLC 8.89% 69,234 $20.1M No change
CVSA Covista Inc. 6.40% 125,759 $14.5M New
UHS Universal Health Services-B 5.14% 65,059 $11.6M No change
MTG Mgic Investment Corp. 5.09% 439,013 $11.5M No change
IPGP Ipg Photonics Corp. 3.92% 77,500 $8.9M No change
ZBRA Zebra Technologies Corp. Class A 3.17% 34,335 $7.2M No change
GOOG Alphabet Inc. Class C 3.04% 24,000 $6.9M No change
DRI Darden Restaurants Inc. 3.03% 35,000 $6.9M No change
LITE Lumentum Holdings Inc. 2.95% 9,500 $6.7M No change
URI United Rentals Inc. 2.57% 8,000 $5.8M No change
EEM iShares MSCI Emerging Market 2.51% 100,000 $5.7M No change
EOG EOG Resources Inc. 2.48% 38,889 $5.6M No change
ORCL Oracle Corp. 2.47% 38,000 $5.6M No change
CHKP Check Point Software Tech 2.04% 32,300 $4.6M No change
UBER Uber Technologies Inc. 1.99% 62,577 $4.5M No change
LIN Linde PLC 1.97% 9,000 $4.5M No change
PTC PTC Inc. 1.96% 31,100 $4.4M No change
RDN Radian Group Inc. 1.90% 130,371 $4.3M No change
ROST Ross Stores Inc. 1.63% 17,000 $3.7M No change
RSG Republic Services Inc. 1.45% 15,000 $3.3M No change
ROK Rockwell Automation Inc. 1.43% 9,000 $3.2M No change
COHR Coherent Inc. 1.42% 13,500 $3.2M No change
TSBK Timberland Bancorp Inc. 1.41% 80,909 $3.2M No change
AKAM Akamai Technologies Inc. 1.40% 27,700 $3.2M No change
CARR Carrier Global Corp. 1.30% 52,400 $3.0M No change
CACI Caci International Inc. Class A 1.20% 5,000 $2.7M No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 1.07% 10,000 $2.4M No change
RHP Ryman Hospitality Properties 1.02% 25,000 $2.3M No change
ROG Rogers Corp. 0.97% 20,456 $2.2M No change
UNP Union Pacific Corp. 0.94% 8,800 $2.1M No change
WBD Warner Bros Discovery Inc. 0.85% 69,822 $1.9M Reduce -12.5%
NSC Norfolk Southern Corp. 0.76% 6,000 $1.7M No change
CHTR Charter Communications Inc. Class A 0.72% 7,559 $1.6M No change
VRSK Verisk Analytics Inc. 0.71% 8,500 $1.6M New
EXP Eagle Materials Inc. 0.67% 8,000 $1.5M No change
VRT Vertiv Holdings Co. Class A 0.66% 6,000 $1.5M Reduce -25.0%
AZN Astrazeneca PLC-Spons ADR 0.65% 7,500 $1.5M No change
GILD Gilead Sciences Inc. 0.62% 10,000 $1.4M No change
CVS CVS Health Corp. 0.56% 17,772 $1.3M No change
SPGI S&P Global Inc. 0.56% 3,000 $1.3M New
TXN Texas Instruments Inc. 0.52% 6,026 $1.2M No change
VRTX Vertex Pharmaceuticals Inc. 0.49% 2,500 $1.1M No change
T AT&T Inc. 0.41% 31,919 $925K No change
BIO Bio-Rad Laboratories-A 0.37% 3,000 $836K No change
EA Electronic Arts Inc. 0.36% 4,000 $815K No change
RTX RTX Corp. 0.35% 4,127 $796K No change
AMZN Amazon.com Inc. 0.34% 3,720 $775K No change
APD Air Products & Chemicals Inc. 0.32% 2,500 $726K No change
MDU Mdu Resources Group Inc. 0.32% 35,000 $725K No change
WAT Waters Corp. 0.31% 2,338 $696K New
ZS Zscaler Inc. 0.28% 4,500 $631K New
NEM Newmont Corp. 0.26% 5,505 $596K No change
ADM Archer-Daniels-Midland Co. 0.24% 7,500 $545K No change
OXY Occidental Petroleum Corp. 0.23% 8,135 $529K No change
FCPT Four Corners Property Trust 0.21% 19,998 $473K No change
ECG Everus Construction Group 0.20% 3,750 $443K No change
ABT Abbott Laboratories 0.18% 4,000 $411K No change
AVGO Broadcom Inc. 0.18% 1,312 $406K No change
BDX Becton Dickinson and Co. 0.17% 2,500 $393K New
CRWD CrowdStrike Holdings Inc. Class A 0.17% 1,000 $390K No change
J Jacobs Solutions Inc. 0.17% 3,000 $382K No change
CGNT Cognyte Software Ltd. 0.16% 45,000 $365K No change
OMC Omnicom Group 0.16% 4,816 $363K No change
APH Amphenol Corp. Class A 0.14% 2,500 $316K No change
FMC FMC Corp. 0.11% 15,000 $258K No change
ELAN Elanco Animal Health Inc. 0.11% 10,000 $239K No change
ZTS Zoetis Inc. 0.10% 2,000 $236K No change
CP Canadian Pac Railway 0.10% 2,884 $227K No change
TDC Teradata Corp. 0.08% 7,500 $192K No change
THC Tenet Healthcare Corp. 0.08% 1,000 $189K No change
S Sentinelone Inc. Class A 0.07% 12,500 $161K No change
GHC Graham Holdings Co. Class B 0.07% 150 $159K No change
VOD Vodafone Group PLC-SP ADR 0.06% 8,989 $135K No change
HAL Halliburton Co. 0.06% 3,444 $134K No change
VZ Verizon Communications Inc. 0.02% 862 $43K No change
CABO Cable One Inc. 0.01% 150 $14K No change
LEE Lee Enterprises 0.00% 540 $5K No change

Portfolio Sells Q4 2025 → Q1 2026

DEVRY ED GROUP INC Sold out 0.00% −8.10
SKX Skechers USA Inc. Class A Sold out 0.00% −0.40
NTR Nutrien Ltd. Sold out 0.00% −0.27
WBD Warner Bros Discovery Inc. Reduce -12.5% 0.85% +0.07
VRT Vertiv Holdings Co. Class A Reduce -25.0% 0.66% +0.16

Portfolio Buys Q4 2025 → Q1 2026

CVSA Covista Inc. New 6.40% +6.40
VRSK Verisk Analytics Inc. New 0.71% +0.71
SPGI S&P Global Inc. New 0.56% +0.56
WAT Waters Corp. New 0.31% +0.31
ZS Zscaler Inc. New 0.28% +0.28
BDX Becton Dickinson and Co. New 0.17% +0.17

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 80$244.9MSNPS, WTW, CVSA, MTG, UHS
Q1 2026 78$226.5MSNPS, WTW, CVSA, UHS, MTG
Q4 2025 75$239.7MSNPS, WTW, DEVRY ED GROUP INC, UHS, MTG
Q3 2025 75$239.8MSNPS, WTW, DEVRY ED GROUP INC, UHS, MTG
Q2 2025 76$226.3MSNPS, WTW, DEVRY ED GROUP INC, MTG, UHS
Q1 2025 74$206.2MWTW, SNPS, DEVRY ED GROUP INC, UHS, MTG
Q4 2024 73$208.9MSNPS, WTW, ZBRA, UHS, DEVRY ED GROUP INC
Q3 2024 73$213.3MSNPS, WTW, UHS, ZBRA, MTG
Q2 2024 74$199.8MSNPS, WTW, UHS, ZBRA, MTG
Q1 2024 72$200.2MSNPS, WTW, UHS, ZBRA, MTG