MASI

Masimo Corp

Company with tickers: MASI

CIK

937556

CUSIP

574795100

Shares Outstanding

52,369,086

13F Activity (30d)

341 filings 334 filers

Short Volume (Last 90 Days)

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-05-29	35,868	97	166,876	21.5%
2026-05-28	125,121	0	264,354	47.3%
2026-05-27	57,328	98	127,852	44.8%
2026-05-26	55,926	14	157,641	35.5%
2026-05-22	104,537	2	233,161	44.8%
2026-05-21	58,084	1	267,202	21.7%
2026-05-20	62,077	1	163,859	37.9%
2026-05-19	83,877	2,635	196,333	42.7%
2026-05-18	161,812	31	332,626	48.6%
2026-05-15	45,677	245	172,475	26.5%
2026-05-14	52,895	121	169,607	31.2%
2026-05-13	77,782	183	226,043	34.4%
2026-05-12	105,796	5	279,529	37.8%
2026-05-11	83,029	16	377,624	22.0%
2026-05-08	87,292	10	216,193	40.4%
2026-05-07	152,600	1	498,130	30.6%
2026-05-06	98,252	146	310,989	31.6%
2026-05-05	119,915	7	483,604	24.8%
2026-05-04	69,385	1	300,680	23.1%
2026-05-01	63,156	33	629,970	10.0%
2026-04-30	123,316	12	286,968	43.0%
2026-04-29	63,170	39	211,675	29.8%
2026-04-28	59,658	18	400,038	14.9%
2026-04-27	46,032	2	133,921	34.4%
2026-04-24	47,198	89	328,258	14.4%
2026-04-23	77,038	13	135,691	56.8%
2026-04-22	78,151	425	217,100	36.0%
2026-04-21	62,303	0	188,829	33.0%
2026-04-20	46,869	3	211,672	22.1%
2026-04-17	58,917	60	104,481	56.4%
2026-04-16	55,126	117	144,524	38.1%
2026-04-15	55,500	1	102,850	54.0%
2026-04-14	45,196	4	118,251	38.2%
2026-04-13	57,447	5	95,708	60.0%
2026-04-10	51,000	179	91,471	55.8%
2026-04-09	83,356	19	145,154	57.4%
2026-04-08	85,539	0	138,803	61.6%
2026-04-07	102,320	43	174,557	58.6%
2026-04-06	78,012	0	182,345	42.8%