Institutional Manager · CIK 0000869304

NORTHSTAR ASSET MANAGEMENT INC

Boston, MA · File #028-22854

Latest AUM

$387.2M

Positions

Top-10 Concentration

46.1%

Filings

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
EXITED	UNILEVER PLC	904767704	-265,201	-$15.7M	$0
ADD	ISHARES TR	464288570	+97,392	+$12.5M	+$14,392
NEW	UNILEVER PLC	UNLYF	+175,462	+$11.5M	$0
NEW	VANGUARD WORLD FD	921910725	+108,538	+$7.8M	$0
REDUCE	IDEX CORP	45167R104	-27,395	-$4.9M	+$568,188
NEW	TAIWAN SEMICONDUCTOR MFG LTD	874039100	+13,322	+$4.0M	$0
REDUCE	ADOBE INC	ADBE	-10,256	-$3.6M	-$31,348
REDUCE	ALCON AG	ALC	-38,748	-$3.1M	+$286,655
REDUCE	VERISK ANALYTICS INC	VRSK	-12,711	-$2.8M	-$773,535
NEW	MERCADOLIBRE INC	MELI	+858	+$1.7M	$0

Sector Allocation

Technology

25.9%$100.3M

Industrials

9.4%$36.4M

Healthcare

4.6%$18.0M

Consumer Discretionary

4.2%$16.4M

Materials

3.8%$14.6M

Financials

3.0%$11.7M

Consumer Staples

0.4%$1.5M

Communication Services

0.1%$449,521

Energy

0.1%$252,955

Filing History

Feb 12, 202613F HOLDINGS REPORTQ/E Dec 202588 pos · $387.2M
Oct 30, 202513F HOLDINGS REPORTQ/E Sep 202570 pos · $384.6M
Jul 31, 202513F HOLDINGS REPORTQ/E Jun 202561 pos · $361.8M
Jul 15, 202513F HOLDINGS REPORT (Amended)Q/E Jun 202557 pos · $569.6M
Jul 15, 202513F HOLDINGS REPORT (Amended)Q/E Jun 202558 pos · $380.9M
Jul 15, 202513F HOLDINGS REPORT (Amended)Q/E Jun 202558 pos · $338.0M
Jul 15, 202513F HOLDINGS REPORT (Amended)Q/E Jun 202558 pos · $391.6M
Jul 15, 202513F HOLDINGS REPORT (Amended)Q/E Jun 202558 pos · $407.2M
May 13, 202513F HOLDINGS REPORTQ/E Mar 202558 pos · $338.0M
Jan 31, 202513F HOLDINGS REPORTQ/E Dec 202458 pos · $380.9M
Oct 30, 202413F HOLDINGS REPORTQ/E Sep 202458 pos · $407.2M
Aug 12, 202413F HOLDINGS REPORT (Amended)Q/E Jun 202457 pos · $569.6M
Aug 5, 202413F HOLDINGS REPORTQ/E Jun 202458 pos · $391.6M
May 10, 202413F HOLDINGS REPORTQ/E Mar 2024114 pos · $1.14B
Nov 8, 202313F HOLDINGS REPORTQ/E Dec 202352 pos · $312.8M

Top 20 Holdings — Dec 2025

#	Issuer	Ticker	Shares	Value	% of Portfolio
1	ALPHABET INC	GOOG	81,751	$25.6M	6.84%
2	APPLE INC	AAPL	78,539	$21.4M	5.71%
3	MICROSOFT CORP	MSFT	44,009	$21.3M	5.69%
4	TJX COS INC NEW	872540109	115,546	$17.7M	4.74%
5	COSTCO WHSL CORP NEW	22160K105	17,965	$15.5M	4.14%
6	STRYKER CORPORATION	SYK	42,379	$14.9M	3.98%
7	LINDE PLC	LIN	34,204	$14.6M	3.90%
8	AUTOMATIC DATA PROCESSING IN	ADP	56,145	$14.4M	3.86%
9	INTUIT	INTU	20,773	$13.8M	3.68%
10	ISHARES TR	464288570	102,389	$13.2M	3.53%
11	UNILEVER PLC	UNLYF	175,462	$11.5M	3.07%
12	EATON CORP PLC	ETN	35,886	$11.4M	3.05%
13	XYLEM INC	XYL	81,333	$11.1M	2.96%
14	IDEXX LABS INC	45168D104	16,285	$11.0M	2.94%
15	BERKSHIRE HATHAWAY INC DEL	BRK-A	14	$10.6M	2.82%
16	HOME DEPOT INC	HD	29,048	$10.0M	2.67%
17	NOVO-NORDISK A S	NONOF	190,158	$9.7M	2.59%
18	CANADIAN NATL RY CO	136375102	91,499	$9.0M	2.42%
19	DIGITAL RLTY TR INC	253868103	57,079	$8.8M	2.36%
20	VERALTO CORP	VLTO	82,883	$8.3M	2.21%