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ISTHMUS PARTNERS, LLC — 13F Holdings & Portfolio

CIK 1639666 · latest 13F-HR filed 2026-07-20

Backtest portfolio

ISTHMUS PARTNERS, LLC manages $1.03B in 13F-reported U.S. long-equity assets across 226 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are IEFA (4.71%), AAPL (2.58%), GOOGL (2.42%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 19 new positions and exited 10; 131 existing positions rose in reported value and 42 fell.

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
$1.03B

Long-equity book

Holdings
226

Distinct positions

Period
2026-06-30

Filed 2026-07-20

Q/Q Activity
+19 / −10 / ↑131 / ↓42

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
IEFA4.7% · -1%AAPL2.6% · +1%GOOGL2.4% · -0%AMAT2.4% · -25%AVGO2.1% · -2%V2.0% · -1%JNJ2.0% · -1%BK1.9% · newROK1.8% · -2%GWW1.8% · -1%MSFT1.8% · +6%TT1.8% · -2%SPEM1.7% · -2%ABBV1.6% · +0%PNC1.6% · -0%FITB1.6% · -1%PG1.5% · +1%EMR1.4% · +0%ZBRA1.4% · +1%WRB1.4% · +1%CHRW1.4% · +1%SYY1.4% · +2%AZO1.4% · +1%UPS1.3% · +1%PSA1.3% · -1%CBOE1.3% · +0%CL1.3% · +2%SLB1.3% · 0%HCA1.3% · +2%DXCM1.2% · +2%PAYX1.2% · +1%COR1.2% · +4%LMT1.2% · +2%MCD1.2% · +2%LOW1.1% · +2%DVN1.1% · newVLTO1.1% · -4%AMCR1.1% · newCPRT1.0% · newHSY1.0% · +2%PYPL1.0% · +5%KNSL0.9% · +9%SPTM0.9% · +5%IT0.8% · -4%VRSK0.7% · newZTS0.7% · +4%PCAR0.7% · +1%ADBE0.7% · newLGND0.6% · -13%GVI0.6% · -2%FTDR0.6% · -2%ACN0.6% · +2%TILE0.5% · -2%CAT0.5% · -0%NVEC0.5% · -0%AMAL0.5% · -1%HAE0.5% · +1%NGVT0.5% · +0%LNTH0.5% · +1%BFLY0.5% · -18%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

3 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 23.8%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Jan 23, 2026.

Assets Under Management
$1.44B
Discretionary
$1.36B
Employees
17
Accounts
1,894
Address
1 SOUTH PINCKNEY STREET
SUITE 800
MADISON, WI 53703
Phone
(608) 729-0949
Website
Name Title / Status Ownership Type
GAMBINO, FRANK, JOSEPH ControlCHIEF EQUITY STRATEGIST
since May 2014
25–50%Individual
HACKWORTHY, DAVID, A ControlCHIEF INVESTMENT OFFICER
since May 2014
25–50%Individual
BAIER, JEREMY, RMEMBER
since May 2014
Less than 5%Individual
Cobb, Ryan, MatthewCOO
since Jan 2024
Less than 5%Individual
EDELSTEIN, JOSEPH, SCOTTMEMBER
since Oct 2025
Less than 5%Individual
GOEDDEL, NOEL, DAVIDMEMBER
since Oct 2025
Less than 5%Individual
MCNEIL, JOEL, CARTERDIRECTOR OF ADVISORY SERVICES
since May 2014
10–25%Individual
RODRIGUEZ, VICTOR, ENRIQUEMEMBER
since May 2014
5–10%Individual
SADZEWICZ, GERY, JOSEPHCHIEF COMPLIANCE OFFICER
since Apr 2014
Less than 5%Individual
SIMPSON, THOMAS, MICHAELMEMBER
since Oct 2025
Less than 5%Individual
Ownership & leadership changes · 5 filings with changes since Apr 23, 2014

From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.

Jan 23, 2026 filing
  • AddedGOEDDEL, NOEL, DAVID · MEMBER · Less than 5%
  • AddedSIMPSON, THOMAS, MICHAEL · MEMBER · Less than 5%
Mar 4, 2025 filing
  • AddedEDELSTEIN, JOSEPH, SCOTT · MEMBER · Less than 5%
Jan 19, 2024 filing
  • AddedCobb, Ryan, Matthew · COO · Less than 5%
  • ChangedRODRIGUEZ, VICTOR, ENRIQUE · title CHIEF OPERATING OFFICER → MEMBER
Jul 18, 2014 filing
  • AddedBAIER, JEREMY, R · MEMBER · Less than 5%
May 30, 2014 filing
  • AddedGAMBINO, FRANK, JOSEPH · CHIEF EQUITY STRATEGIST · 25–50% · control person
  • AddedHACKWORTHY, DAVID, A · CHIEF INVESTMENT OFFICER · 25–50% · control person
  • AddedMCNEIL, JOEL, CARTER · DIRECTOR OF ADVISORY SERVICES · 10–25%
  • AddedRODRIGUEZ, VICTOR, ENRIQUE · CHIEF OPERATING OFFICER · 5–10%
  • ChangedSADZEWICZ, GERY, JOSEPH · title SOLE MEMBER / CHIEF COMPLIANCE OFFICER → CHIEF COMPLIANCE OFFICER; ownership 75% or more → Less than 5%; no longer a control person
Apr 23, 2014 filing (earliest on record)
  • ListedSADZEWICZ, GERY, JOSEPH · SOLE MEMBER / CHIEF COMPLIANCE OFFICER · 75% or more · control person

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 131 →

Top Trims

Show all 42 →

New Positions

Show all 19 →

Exited Positions

Show all 10 →

ISTHMUS PARTNERS, LLC Holdings (2026-06-30)

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 ISHARES TR IEFA 46432F842 $48.7M 4.71% 504,019 SH
2 APPLE INC AAPL 037833100 $26.7M 2.58% 92,177 SH
3 ALPHABET INC GOOGL 02079K305 $25.0M 2.42% 70,087 SH
4 APPLIED MATLS INC AMAT 038222105 $24.6M 2.38% 34,016 SH
5 BROADCOM INC AVGO 11135F101 $21.6M 2.09% 57,198 SH
6 VISA INC V 92826C839 $20.9M 2.02% 60,795 SH
7 JOHNSON & JOHNSON JNJ 478160104 $20.4M 1.98% 80,497 SH
8 BANK OF NY MELLON CORP BNY 064058100 $19.7M 1.91% 136,336 SH
9 ROCKWELL AUTOMATION INC ROK 773903109 $19.1M 1.85% 38,603 SH
10 WW GRAINGER INC GWW 384802104 $18.9M 1.83% 13,927 SH
11 MICROSOFT CORP MSFT 594918104 $18.8M 1.82% 50,363 SH
12 TRANE TECHNOLOGIES PLC TT G8994E103 $18.8M 1.81% 38,205 SH
13 SPDR INDEX SHS FDS SPEM 78463X509 $17.7M 1.71% 340,969 SH
14 ABBVIE INC ABBV 00287Y109 $16.9M 1.63% 67,124 SH
15 PNC FINL SVCS GROUP INC PNC 693475105 $16.9M 1.63% 68,470 SH
16 FIFTH THIRD BANCORP FITB 316773100 $16.5M 1.60% 292,923 SH
17 PROCTER & GAMBLE CO PG 742718109 $15.9M 1.54% 108,474 SH
18 EMERSON ELEC CO EMR 291011104 $14.8M 1.43% 103,401 SH
19 ZEBRA TECHNOLOGIES CORPORATI ZBRA 989207105 $14.8M 1.43% 56,073 SH
20 BERKLEY W R CORP WRB 084423102 $14.6M 1.41% 206,664 SH
21 C H ROBINSON WORLDWIDE IN CHRW 12541W209 $14.2M 1.37% 75,469 SH
22 SYSCO CORP SYY 871829107 $14.0M 1.35% 167,134 SH
23 AUTOZONE INC AZO 053332102 $14.0M 1.35% 4,368 SH
24 UNITED PARCEL SVCS INC UPS 911312106 $13.9M 1.35% 129,683 SH
25 PUBLIC STORAGE PSA 74460D109 $13.7M 1.32% 43,031 SH
26 CBOE GLOBAL MKTS INC CBOE 12503M108 $13.6M 1.32% 56,104 SH
27 COLGATE PALMOLIVE CO CL 194162103 $13.6M 1.31% 148,235 SH
28 SLB LIMITED SLB 806857108 $13.3M 1.29% 286,548 SH
29 HCA HEALTHCARE INC HCA 40412C101 $13.0M 1.25% 33,227 SH
30 DEXCOM INC DXCM 252131107 $12.5M 1.21% 186,266 SH
31 PAYCHEX INC PAYX 704326107 $12.5M 1.21% 126,941 SH
32 CENCORA INC COR 03073E105 $12.4M 1.20% 43,823 SH
33 LOCKHEED MARTIN CORP LMT 539830109 $12.4M 1.19% 24,246 SH
34 MCDONALDS CORP MCD 580135101 $11.9M 1.15% 44,182 SH
35 LOWES COS INC LOW 548661107 $11.6M 1.12% 52,747 SH
36 DEVON ENERGY CORP NEW DVN 25179M103 $11.3M 1.09% 274,033 SH
37 VERALTO CORP VLTO 92338C103 $11.2M 1.08% 126,012 SH
38 AMCOR PLC AMCR G0250X149 $10.9M 1.06% 252,476 SH
39 COPART INC CPRT 217204106 $10.7M 1.04% 380,652 SH
40 HERSHEY CO HSY 427866108 $10.6M 1.03% 60,614 SH
41 PAYPAL HLDGS INC PYPL 70450Y103 $10.5M 1.01% 242,336 SH
42 KINSALE CAP GROUP INC KNSL 49714P108 $9.3M 0.90% 28,123 SH
43 SPDR SERIES TRUST SPTM 78464A805 $9.1M 0.88% 99,917 SH
44 GARTNER INC IT 366651107 $8.7M 0.84% 67,111 SH
45 VERISK ANALYTICS INC VRSK 92345Y106 $7.6M 0.74% 42,474 SH
46 ZOETIS INC ZTS 98978V103 $7.6M 0.74% 106,029 SH
47 PACCAR INC PCAR 693718108 $7.4M 0.71% 61,320 SH
48 ADOBE INC ADBE 00724F101 $6.8M 0.65% 32,986 SH
49 LIGAND PHARMACEUTICALS INC LGND 53220K504 $6.6M 0.64% 20,935 SH
50 ISHARES TR GVI 464288612 $6.0M 0.58% 56,442 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-07-20 $1.03B 226 0001104659-26-084982
2026-03-31 2026-04-30 $953.4M 218 0001104659-26-051814
2025-12-31 2026-02-05 $900.5M 214 0001104659-26-010761
Filer Information
Address
ONE SOUTH PINCKNEY STREET, SUITE 818
MADISON, WI 53703
Phone
(608) 729-0949
Filing Manager
ISTHMUS PARTNERS, LLC
MADISON, WI
Signatory
Ryan Cobb
Chief Operating Officer