NORTH STAR ASSET MANAGEMENT INC — 13F Holdings & Portfolio

CIK 1056559 · latest 13F-HR filed 2026-08-18

NORTH STAR ASSET MANAGEMENT INC manages $2.54B in 13F-reported U.S. long-equity assets across 468 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are AAPL (3.79%), SCHB (3.16%), GOOG (2.74%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 25 new positions and exited 9; 210 existing positions rose in reported value and 70 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.

AUM

$2.54B

Long-equity book

Holdings

468

Distinct positions

Period

2026-06-30

Filed 2026-08-18

Q/Q Activity

+25 / −9 / ↑210 / ↓70

vs 2026-03-31

Portfolio charts

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

Portfolio map

Q2 26

AAPL3.9% · -3%SCHB3.2% · +3%GOOG2.7% · -4%VTI2.7% · -0%MSFT2.3% · -0%AMZN2.1% · -2%SPYM2.1% · +0%ASML2.0% · -11%V1.9% · -2%AMD1.8% · -11%SCHW1.7% · -2%AME1.6% · -3%ADI1.6% · -4%PFG1.6% · -3%APH1.5% · -4%ABBV1.5% · -2%AVGO1.5% · -4%SSNC1.5% · +0%NVDA1.4% · -3%SYK1.3% · +3%ILMN1.3% · -2%ABT1.2% · +6%TMO1.2% · -2%ACIW1.1% · -2%SNPS1.1% · -2%SCHWAB TOTAL1.1% · -0%VEEV1.1% · +6%JPM1.1% · -1%MENASHA CORP1.0% · 0%GOOGL1.0% · -1%DHR0.9% · -1%GPN0.9% · +1%ROK0.9% · -4%MA0.9% · -1%AMG0.9% · -5%DDOG0.9% · -3%EVTC0.9% · +0%ECL0.9% · -2%CRWD0.9% · -6%MBWM0.9% · -2%SCHF0.8% · -1%ADBE0.8% · +0%EFX0.8% · +3%WH0.8% · -2%PTC0.7% · +0%AES0.7% · -30%NOW0.7% · +35%SPMD0.7% · +2%FISV0.7% · +5%SCHA0.7% · +3%LOW0.7% · +0%INTU0.7% · +22%PB0.7% · -1%ITW0.7% · -0%COST0.7% · -4%DIS0.6% · -2%VNRDF0.6% · +6%LYV0.6% · -5%SCHX0.6% · +5%RPM0.6% · -1%

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 = 24.7%

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

Firm Profile & Key People

Assets Under Management

$3.35B

Discretionary

$3.32B

Employees

Accounts

3,554

Address

ONE NEENAH CENTER, SUITE 300
NEENAH, WI 54956

Phone

(920) 729-7900

Website

WWW.NORTHSTARINVESTMENTS.COM

Name	Title / Status	Ownership	Type
BRUSDA, KENNETH, JAY Control	CHAIRMAN OF THE BOARD	5–10%	Individual
BUCHANAN, BRADLEY, CRAIG Control	MANAGING DIRECTOR	5–10%	Individual
FLESCH, MICHAEL, DAVID Control	BOARD OF DIRECTOR	10–25%	Individual
HACKFORT, DAVID, LEO Control	PRESIDENT/MANAGING DIRECTOR	5–10%	Individual
HUNTLEY, ROBERT, SCOTT Control	BOARD OF DIRECTOR	Less than 5%	Individual
PENN, GEOFFRY, ALAN Control	MANAGING DIRECTOR	10–25%	Individual
REILLY, MARK, PATRICK Control	MANAGING DIRECTOR	5–10%	Individual
RISGAARD, DAVID, WILLIAM Control	MANAGING DIRECTOR	10–25%	Individual
BRUSDA, ALEX, JAY	VICE PRESIDENT AND PORTFOLIO MANAGER	Less than 5%	Individual
HAQUE, EMIL, ANIL JOHANNES	VICE PRESIDENT AND PORTFOLIO MANAGER	Less than 5%	Individual
JOCHMAN, KAREN, MARIE	CHIEF COMPLIANCE OFFICER	Less than 5%	Individual
JOHNSON, JACOB, W	PORTFOLIO MANAGER	Less than 5%	Individual
KREPLINE, DREW, JOSEPH	PORTFOLIO MANAGER	Less than 5%	Individual
PENN, NATHANIEL, ROLAND	PORTFOLIO MANAGER	Less than 5%	Individual
RICHTER, KITTI, C	SHAREHOLDER	10–25%	Individual
VAN HANDEL, BENJAMIN, DOUGLAS	VICE PRESIDENT AND PORTFOLIO MANAGER	Less than 5%	Individual

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)

ADVANCED MICRO DEVICES$27.5M +153.8%
SCHWAB US BROAD MKT ETF$13.0M +19.3%
ASML HOLDINGS$13.0M +33.7%
DATADOG$12.1M +114.6%
ALPHABET CL C$10.6M +17.8%

Show all 210 →

Top Trims

AES CORP-$6.9M -27.7%
INTUIT-$6.1M -26.6%
PTC INC-$4.7M -20.1%
ADOBE SYSTEMS-$3.7M -15.2%
SS&C TECHNOLOGIES-$3.2M -7.9%

Show all 70 →

New Positions

Show all 25 →

Exited Positions

HOLOGIC$7.7M
EXXON MOBIL CORP$4.5M
ACCENTURE PLC$441.0K
SCHWAB DEV-MKTS INDEX MF$342.4K
EPAM SYSTEMS$277.6K

Show all 9 →

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#	Issuer	Symbol	CUSIP	Value	Δ

NORTH STAR ASSET MANAGEMENT INC Holdings (2026-06-30)

#	Issuer	Symbol	CUSIP	Value	Weight	Shares	Type
1	APPLE	AAPL	037833100	$96.4M	3.79%	333,019	SH
2	SCHWAB US BROAD MKT ETF	SCHB	808524102	$80.3M	3.16%	2,772,864	SH
3	ALPHABET CL C	GOOG	02079K107	$69.7M	2.74%	197,366	SH
4	VANGUARD TTL STK MKT ETF	VTI	922908769	$63.1M	2.48%	170,439	SH
5	MICROSOFT	MSFT	594918104	$59.3M	2.33%	158,866	SH
6	AMAZON.COM	AMZN	023135106	$53.0M	2.08%	222,401	SH
7	SPDR S&P LARGE CAP 500	SPYM	78464A854	$52.5M	2.06%	597,120	SH
8	ASML HOLDINGS	ASML	N07059210	$51.4M	2.02%	25,844	SH
9	VISA	V	92826C839	$47.9M	1.88%	139,564	SH
10	ADVANCED MICRO DEVICES	AMD	007903107	$44.7M	1.76%	76,931	SH
11	CHARLES SCHWAB	SCHW	808513105	$44.1M	1.74%	478,343	SH
12	AMETEK	AME	031100100	$41.1M	1.62%	169,798	SH
13	ANALOG DEVICES	ADI	032654105	$40.4M	1.59%	101,780	SH
14	PRINCIPAL FINL GROUP	PFG	74251V102	$39.9M	1.57%	370,447	SH
15	ABBVIE	ABBV	00287Y109	$39.0M	1.53%	154,788	SH
16	AMPHENOL	APH	032095101	$39.0M	1.53%	220,910	SH
17	BROADCOM	AVGO	11135F101	$38.3M	1.51%	101,488	SH
18	SS&C TECHNOLOGIES	SSNC	78467J100	$38.0M	1.49%	612,023	SH
19	NVIDIA	NVDA	67066G104	$36.5M	1.44%	182,563	SH
20	STRYKER	SYK	863667101	$33.1M	1.30%	105,188	SH
21	ILLUMINA	ILMN	452327109	$33.0M	1.30%	187,803	SH
22	ABBOTT LABS	ABT	002824100	$31.4M	1.24%	346,294	SH
23	THERMO FISHER SCIENTIFIC	TMO	883556102	$30.5M	1.20%	60,747	SH
24	SYNOPSYS	SNPS	871607107	$29.1M	1.14%	65,170	SH
25	ACI WORLDWIDE	ACIW	004498101	$29.1M	1.14%	578,011	SH
26	SCHWAB TOTAL STOCK MKT-SEL	—	808509756	$28.7M	1.13%	1,577,527	SH
27	VEEVA SYSTEMS	VEEV	922475108	$27.4M	1.08%	154,243	SH
28	JP MORGAN CHASE	JPM	46625H100	$27.2M	1.07%	83,084	SH
29	MENASHA CORP	—	FJG456208	$25.6M	1.01%	2,181	SH
30	ALPHABET CL A	GOOGL	02079K305	$24.8M	0.98%	69,474	SH
31	DANAHER	DHR	235851102	$23.4M	0.92%	122,973	SH
32	GLOBAL PAYMENTS	GPN	37940X102	$23.2M	0.91%	319,637	SH
33	ROCKWELL AUTOMATION	ROK	773903109	$23.0M	0.91%	46,533	SH
34	MASTERCARD	MA	57636Q104	$22.9M	0.90%	44,499	SH
35	AFFILIATED MANAGERS	AMG	008252108	$22.7M	0.89%	66,968	SH
36	DATADOG	DDOG	23804L103	$22.6M	0.89%	86,677	SH
37	EVERTEC	EVTC	30040P103	$22.5M	0.88%	808,520	SH
38	ECOLAB	ECL	278865100	$22.1M	0.87%	79,204	SH
39	CROWDSTRIKE HOLDINGS	CRWD	22788C105	$21.8M	0.86%	28,502	SH
40	MERCANTILE BANK	MBWM	587376104	$21.7M	0.85%	377,427	SH
41	SCHWAB FTSE DEV EX-US ETF	SCHF	808524805	$21.0M	0.83%	757,833	SH
42	ADOBE SYSTEMS	ADBE	00724F101	$20.3M	0.80%	99,048	SH
43	EQUIFAX	EFX	294429105	$19.9M	0.78%	125,367	SH
44	WYNDHAM HOTELS & RESORTS	WH	98311A105	$19.6M	0.77%	232,202	SH
45	PTC INC	PTC	69370C100	$18.6M	0.73%	163,332	SH
46	AES CORP	AES	00130H105	$18.0M	0.71%	1,227,209	SH
47	SERVICENOW	NOW	81762P102	$17.8M	0.70%	178,977	SH
48	SPDR S&P MID CAP 400 ETF	SPMD	78464A847	$17.5M	0.69%	258,787	SH
49	FISERV	FISV	337738108	$17.2M	0.68%	350,216	SH
50	SCHWAB US SCAP ETF	SCHA	808524607	$17.1M	0.67%	473,589	SH