ResMed Inc.
MX ˙ BMV ˙ US7611521078
SecurityMX:RMD / ResMed Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership381,296 shares
Latest Disclosed Value $ 85,593,329
Marshall Wace, Llp ownership in RMD / ResMed Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 381,296 shares of ResMed Inc. (MX:RMD) valued at $85,593,329 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of ResMed Inc..

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F RESMED COMMON STOCK 761152107 381,296 381,296 85,593 0.0404
2026-02-13 2025-12-31 13F RESMED COMMON STOCK 761152107 0 -310,987 -100.00 0 -100.00
2025-11-13 2025-09-30 13F RESMED COMMON STOCK 761152107 310,987 298,412 2,373.06 85,126 2,524.11 0.0863
2025-08-13 2025-06-30 13F RESMED COMMON STOCK 761152107 12,575 -543,857 -97.74 3,244 -97.40 0.0037
2025-05-15 2025-03-31 13F RESMED COMMON STOCK 761152107 556,432 548,581 6,987.40 124,557 6,839.11 0.1581
2025-02-13 2024-12-31 13F RESMED COMMON STOCK 761152107 7,851 -395,621 -98.05 1,795 -98.18 0.0022
2024-11-14 2024-09-30 13F RESMED COMMON STOCK 761152107 403,472 -275 -0.07 98,496 27.44 0.1200
2024-08-14 2024-06-30 13F RESMED COMMON STOCK 761152107 403,747 403,747 77,285 0.1032
2024-05-15 2024-03-31 13F RESMED COMMON STOCK 761152107 0 -60,191 -100.00 0 -100.00
2024-02-14 2023-12-31 13F RESMED COMMON STOCK 761152107 60,191 -626,702 -91.24 10,354 -89.81 0.0175
2023-11-14 2023-09-30 13F RESMED COMMON STOCK 761152107 686,893 339,755 97.87 101,571 33.91 0.2057
2023-08-14 2023-06-30 13F RESMED COMMON STOCK 761152107 347,138 -101,763 -22.67 75,850 -22.84 0.1481
2023-05-15 2023-03-31 13F RESMED COMMON STOCK 761152107 448,901 304,717 211.34 98,305 227.58 0.2089
2023-02-14 2022-12-31 13F RESMED COMMON STOCK 761152107 144,184 39,768 38.09 30,009 31.65 0.0675
2022-11-14 2022-09-30 13F RESMED COMMON STOCK 761152107 104,416 44,497 74.26 22,795 81.45 0.0499
2022-08-15 2022-06-30 13F RESMED COMMON STOCK 761152107 59,919 59,919 12,563 0.0258
2022-05-16 2022-03-31 13F RESMED COMMON STOCK 761152107 0 -220,415 -100.00 0 -100.00
2022-02-14 2021-12-31 13F RESMED COMMON STOCK 761152107 220,415 108,467 96.89 57,415 94.60 0.1060
2021-11-15 2021-09-30 13F RESMED COMMON STOCK 761152107 111,948 37,997 51.38 29,504 61.84 0.1225
2021-08-13 2021-06-30 13F RESMED COMMON STOCK 761152107 73,951 -42,393 -36.44 18,230 -19.24 0.0888
2021-05-17 2021-03-31 13F RESMED COMMON STOCK 761152107 116,344 35,882 44.59 22,573 31.98 0.1035
2021-02-16 2020-12-31 13F RESMED COMMON STOCK 761152107 80,462 3,088 3.99 17,103 28.94 0.0927
2020-11-16 2020-09-30 13F RESMED COMMON STOCK 761152107 77,374 77,374 -3.84 13,264 -22.45 0.0849
2020-08-13 2020-06-30 13F RESMED COMMON STOCK 761152107 0 -20,496 -100.00 0 -100.00
2020-05-15 2020-03-31 13F RESMED COMMON STOCK 761152107 20,496 1,441 7.56 3,019 2.24 0.0302
2020-02-14 2019-12-31 13F RESMED COMMON STOCK 761152107 19,055 19,055 -7.03 2,953 -2.19 0.0203
2019-02-14 2018-12-31 13F RESMED COMMON STOCK 761152107 0 -357,549 -100.00 0 -100.00
2018-12-06 2018-09-30 13F/A-1 RESMED COMMON STOCK 761152107 357,549 293,582 458.96 41,240 522.40 0.3509
2018-11-14 2018-09-30 13F RESMED COMMON STOCK 761152107 357,549 293,582 41,240
2018-08-14 2018-06-30 13F RESMED COMMON STOCK 761152107 63,967 63,967 -82.11 6,626 -83.93 0.0991
2018-03-29 2017-12-31 13F/A-1 RESMED COMMON STOCK 761152107 0 -10,595 -100.00 0 -100.00
2017-11-13 2017-09-30 13F RESMED COMMON STOCK 761152107 10,595 10,595 816 0.0379
2017-05-12 2017-03-31 13F RESMED COMMON STOCK 761152107 0 -54,322 -100.00 0 -100.00
2017-02-10 2016-12-31 13F RESMED COMMON STOCK 761152107 54,322 54,322 3,371 0.0222
2016-11-10 2016-09-30 13F RESMED COMMON STOCK 761152107 0 -79,356 -100.00 0 -100.00
2016-08-12 2016-06-30 13F RESMED COMMON STOCK 761152107 79,356 -35,136 -30.69 5,018 -24.20 0.0422
2016-05-13 2016-03-31 13F RESMED COMMON STOCK 761152107 114,492 93,389 442.54 6,620 484.29 0.0638
2016-02-10 2015-12-31 13F RESMED COMMON STOCK 761152107 21,103 21,103 -81.57 1,133 -82.89 0.0106
2015-02-17 2014-12-31 13F RESMED COMMON STOCK 761152107 0 -23,001 -100.00 0 -100.00
2014-11-13 2014-09-30 13F RESMED COMMON STOCK 761152107 23,001 5,274 29.75 1,133 26.17 0.0163
2014-08-14 2014-06-30 13F RESMED COMMON STOCK 761152107 17,727 -60,718 -77.40 898 -74.39 0.0132
2014-05-14 2014-03-31 13F RESMED COMMON STOCK 761152107 78,445 78,445 3,506 0.0638
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.