M.D. Sass, LLC

Est. AUM

$1.32B

13F long equity, this entity only

Positions

Period

Mar 2026 (Q1)

SEC EDGAR

View filings ↗

Mar 2026 (Q1)

#	Issuer	Class	Value	Shares	% Portfolio	Discretion
1	SCHEIN HENRY INC	COM	$93.8M	1273316	7.11%	SOLE
2	WILLIAMS COS INC	COM	$85.4M	1173920	6.48%	SOLE
3	AMETEK INC	COM	$77.6M	361795	5.88%	SOLE
4	CLEAN HARBORS INC	COM	$72.4M	252540	5.49%	SOLE
5	RBB FUND TRUST	M D SASS CONCEN	$66.9M	2884000	5.07%	SOLE
6	PRIMO BRANDS CORPORATION	CLASS A COM SHS	$63.7M	3383017	4.83%	SOLE
7	MARTIN MARIETTA MATLS INC	COM	$60.7M	103109	4.60%	SOLE
8	INTERCONTINENTAL EXCHANGE IN	COM	$58.9M	374368	4.46%	SOLE
9	QUEST DIAGNOSTICS INC	COM	$58.7M	299459	4.45%	SOLE
10	API GROUP CORP	COM STK	$56.1M	1383635	4.25%	SOLE
11	STANDARDAERO INC	COM	$55.5M	2149680	4.21%	SOLE
12	AMAZON COM INC	COM	$55.0M	263973	4.17%	SOLE
13	CAPITAL ONE FINL CORP	COM	$53.4M	292901	4.05%	SOLE
14	WELLTOWER INC	COM	$50.5M	255592	3.83%	SOLE
15	SOMNIGROUP INTERNATIONAL INC	COM	$47.5M	642354	3.60%	SOLE
16	FAIR ISAAC CORP	COM	$47.2M	44221	3.58%	SOLE
17	AON PLC	SHS CL A	$46.0M	142362	3.48%	SOLE
18	CBRE GROUP INC	CL A	$39.3M	290485	2.98%	SOLE
19	DANAHER CORP DEL	COM	$38.1M	201201	2.89%	SOLE
20	C H ROBINSON WORLDWIDE IN	COM NEW	$37.5M	225964	2.84%	SOLE
21	QUANTA SVCS INC	COM	$34.8M	63442	2.64%	SOLE
22	SYNOPSYS INC	COM	$30.5M	76822	2.31%	SOLE
23	GILDAN ACTIVEWEAR INC	COM	$22.1M	396504	1.67%	SOLE
24	GUIDEWIRE SOFTWARE INC	COM	$8.3M	55208	0.63%	SOLE
25	PALO ALTO NETWORKS INC	COM	$8.1M	50516	0.61%	SOLE
26	MARVELL TECHNOLOGY INC	COM	$7.6M	76778	0.58%	SOLE
27	STATE STR SPDR S&P 500 ETF T	TR UNIT	$7.4M	11440	0.56%	SOLE
28	AMPHENOL CORP	CL A	$7.1M	56182	0.54%	SOLE
29	ISHARES TR	RUS 1000 VAL ETF	$7.0M	32984	0.53%	SOLE
30	CACI INTL INC	CL A	$5.1M	9316	0.38%	SOLE
31	ISHARES TR	MSCI ACWI EX US	$3.9M	57340	0.30%	SOLE
32	MICROSOFT CORP	COM	$3.6M	9708	0.27%	SOLE
33	CADENCE DESIGN SYSTEM INC	COM	$3.6M	12887	0.27%	SOLE
34	BWX TECHNOLOGIES INC	COM	$2.8M	13453	0.21%	SOLE
35	ALPHABET INC	CAP STK CL A	$2.0M	7031	0.15%	SOLE
36	ISHARES TR	IBOXX HI YD ETF	$987K	12400	0.07%	SOLE

Values in USD (reported in $thousands on 13F). Source: SEC EDGAR.