Since 2015, the Houston Astros have the most no-hitters by a team, with 6.

Interpreted as:

most regular-season no hitters since 2015 by a team

	TEAM	NH	G	W%	W	L	ERA	SO	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Astros	6	1,679	.581	976	703	3.70	15,576	11	453	15006.0	13,063	6,164	6,656	1,877	5,094	612	97	62,488	630	9.34	3.06	3.06	1.13	24.9	8.2	1.21	.284	3.99	7.83
2	Cubs	5	1,681	.540	908	772	3.88	14,342	11	425	14964.0	13,483	6,443	7,072	1,921	5,333	674	212	63,030	586	8.63	3.21	2.69	1.16	22.8	8.5	1.26	.284	4.25	8.11
3	Giants	2	1,680	.501	842	838	3.95	13,781	16	425	14994.2	14,187	6,579	7,196	1,699	4,911	615	252	63,333	513	8.27	2.95	2.81	1.02	21.8	7.8	1.27	.295	4.32	8.52
4	Phillies	2	1,680	.499	839	841	4.29	14,411	17	409	14883.0	14,549	7,089	7,684	2,027	5,033	643	268	63,551	522	8.71	3.04	2.86	1.23	22.7	7.9	1.32	.302	4.65	8.80
5	White Sox	2	1,679	.432	726	953	4.38	14,076	12	350	14816.1	14,179	7,214	7,911	2,046	5,989	680	260	63,982	710	8.55	3.64	2.35	1.24	22.0	9.4	1.36	.295	4.81	8.61
6	Tigers	2	1,675	.449	752	923	4.46	13,118	9	399	14811.0	14,584	7,342	7,989	2,049	5,167	626	197	63,466	575	7.97	3.14	2.54	1.25	20.7	8.1	1.33	.295	4.85	8.86
7	Athletics	2	1,680	.466	783	897	4.39	13,032	13	382	14908.1	14,413	7,278	7,864	2,011	5,292	700	249	63,813	682	7.87	3.19	2.46	1.21	20.4	8.3	1.32	.290	4.75	8.70
8	Yankees	2	1,680	.571	959	721	3.88	15,383	11	471	14953.2	13,365	6,447	7,025	2,000	5,125	644	122	62,925	640	9.26	3.08	3.00	1.20	24.4	8.1	1.24	.286	4.23	8.04
9	Angels	2	1,680	.461	775	905	4.45	13,795	10	389	14859.1	14,236	7,343	7,957	2,142	5,744	696	293	63,839	689	8.36	3.48	2.40	1.30	21.6	9.0	1.34	.292	4.82	8.62
10	Nationals	2	1,680	.479	804	876	4.40	14,064	6	408	14821.2	14,411	7,243	7,809	2,101	5,284	675	319	63,551	534	8.54	3.21	2.66	1.28	22.1	8.3	1.33	.297	4.74	8.75
11	Padres	2	1,680	.488	819	861	4.12	14,670	7	436	14907.0	13,797	6,830	7,420	1,949	5,329	723	248	63,259	586	8.86	3.22	2.75	1.18	23.2	8.4	1.28	.292	4.48	8.33
12	Mariners	2	1,680	.516	867	813	4.10	13,901	11	453	14997.1	14,039	6,840	7,443	2,107	4,752	646	263	63,125	586	8.34	2.85	2.93	1.26	22.0	7.5	1.25	.286	4.47	8.42
13	Reds	1	1,680	.452	760	920	4.50	14,287	10	391	14868.1	14,181	7,438	8,021	2,219	5,915	765	298	64,194	539	8.65	3.58	2.42	1.34	22.3	9.2	1.35	.292	4.86	8.58
14	Dodgers	1	1,681	.616	1,036	645	3.48	15,403	9	489	15040.0	12,742	5,820	6,391	1,810	4,671	610	311	62,007	527	9.22	2.80	3.30	1.08	24.8	7.5	1.16	.277	3.82	7.62
15	Orioles	1	1,680	.460	773	907	4.62	13,262	3	403	14864.0	14,898	7,629	8,225	2,215	5,432	642	177	64,127	657	8.03	3.29	2.44	1.34	20.7	8.5	1.37	.298	4.98	9.02
16	Mets	1	1,680	.513	861	819	4.04	14,904	9	424	14888.0	13,953	6,683	7,260	1,857	5,258	694	272	63,264	524	9.01	3.18	2.83	1.12	23.6	8.3	1.29	.298	4.39	8.43
17	Brewers	1	1,681	.538	904	777	3.88	14,698	2	493	14965.2	13,470	6,460	7,089	1,924	5,493	675	259	63,205	515	8.84	3.30	2.68	1.16	23.3	8.7	1.27	.286	4.26	8.10
18	Marlins	1	1,678	.440	739	939	4.39	13,730	6	389	14863.1	14,156	7,254	7,842	1,916	5,793	769	405	63,857	566	8.31	3.51	2.37	1.16	21.5	9.1	1.34	.294	4.75	8.57
19	Diamondbacks	1	1,680	.483	812	868	4.39	13,820	9	394	14975.1	14,612	7,297	7,911	2,039	5,457	578	376	64,227	557	8.31	3.28	2.53	1.23	21.5	8.5	1.34	.297	4.75	8.78