ResMed Inc.
MX ˙ BMV ˙ US7611521078
SecurityMX:RMD / ResMed Inc.
InstitutionDiamant Asset Management, Inc.
Latest Disclosed Ownership404,064 shares
Latest Disclosed Value $ 404,064
Diamant Asset Management, Inc. reports 21,166.53% increase in ownership of RMD / ResMed Inc.

On April 22, 2026 - Diamant Asset Management, Inc. filed a 13F-HR form disclosing ownership of 404,064 shares of ResMed Inc. (MX:RMD) valued at $404,064 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 1,900 shares of ResMed Inc.. This represents a change in shares of 21,166.53% during the quarter.

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)
2026-04-22 2026-03-31 13F RESMED INC COM COM 761152107 404,064 402,164 21,166.53 404 -11.60 0.2944
2026-02-06 2025-12-31 13F RESMED INC COM Com 761152107 1,900 0 0.00 458 -12.12 0.3308
2025-10-29 2025-09-30 13F RESMED INC COM Comm 761152107 1,900 0 0.00 520 6.12 0.3831
2025-07-16 2025-06-30 13F RESMED INC COM Stock 761152107 1,900 0 0.00 490 15.29 0.3733
2025-05-15 2025-03-31 13F RESMED INC COM COM 761152107 1,900 0 0.00 425 -2.07 0.3228
2025-01-22 2024-12-31 13F RESMED INC COM Com 761152107 1,900 0 0.00 435 -6.26 0.2779
2024-11-20 2024-09-30 13F RESMED INC COM COM 761152107 1,900 0 0.00 464 27.55 0.2906
2024-08-06 2024-06-30 13F RESMED INC COM Com 761152107 1,900 0 0.00 364 -3.46 0.2433
2024-04-24 2024-03-31 13F RESMED INC COM Stock 761152107 1,900 0 0.00 376 15.34 0.2612
2024-02-13 2023-12-31 13F RESMED INC COM Stock 761152107 1,900 150 8.57 327 26.36 0.2421
2023-11-08 2023-09-30 13F RESMED INC COM COM 761152107 1,750 0 0.00 259 -32.46 0.2128
2023-07-21 2023-06-30 13F RESMED COM 761152107 1,750 0 0.00 382 -0.26 0.2922
2023-05-16 2023-03-31 13F/A-1 RESMED Com 761152107 1,750 0 0.00 383 5.22 0.3141
2023-05-15 2023-03-31 13F RESMED INC COM COM 761152107 1,750 0 364 0.3270
2023-02-08 2022-12-31 13F RESMED INC COM COM 761152107 1,750 0 0.00 364 -4.71 0.3270
2022-10-21 2022-09-30 13F RESMED INC COM COM 761152107 1,750 0 0.00 382 4.09 0.3706
2022-08-02 2022-06-30 13F RESMED INC COM Stock 761152107 1,750 0 0.00 367 -13.44 0.3303
2022-05-12 2022-03-31 13F RESMED COM 761152107 1,750 0 0.00 424 -7.02 0.3247
2022-01-31 2021-12-31 13F RESMED COM 761152107 1,750 0 0.00 456 -1.08 0.3333
2021-10-21 2021-09-30 13F RESMED COM 761152107 1,750 0 0.00 461 35.59 0.3812
2021-04-19 2021-03-31 13F RESMED COM 761152107 1,750 0 0.00 340 -8.60 0.2987
2021-01-21 2020-12-31 13F RESMED COM 761152107 1,750 -50 -2.78 372 20.39 0.3309
2020-11-02 2020-09-30 13F RESMED COM 761152107 1,800 0 0.00 309 -10.69 0.2971
2020-07-28 2020-06-30 13F RESMED COM 761152107 1,800 0 0.00 346 30.57 0.3643
2020-04-23 2020-03-31 13F RESMED COM 761152107 1,800 -150 -7.69 265 -12.25 0.3420
2020-02-04 2019-12-31 13F RESMED COM 761152107 1,950 0 0.00 302 14.83 0.2803
2019-10-31 2019-09-30 13F RESMED COM 761152107 1,950 0 0.00 263 10.50 0.2635
2019-07-22 2019-06-30 13F RESMED COM 761152107 1,950 0 0.00 238 17.24 0.2355
2019-04-30 2019-03-31 13F RESMED COM 761152107 1,950 0 0.00 203 -8.56 0.2039
2019-01-30 2018-12-31 13F RESMED COM 761152107 1,950 0 0.00 222 -1.33 0.2491
2018-10-23 2018-09-30 13F RESMED COM 761152107 1,950 -450 -18.75 225 -9.64 0.2085
2018-07-24 2018-06-30 13F RESMED COM 761152107 2,400 0 0.00 249 5.51 0.2408
2018-05-07 2018-03-31 13F RESMED COM 761152107 2,400 0 0.00 236 16.26 0.2315
2018-02-13 2017-12-31 13F RESMED COM 761152107 2,400 2,400 203 0.0297
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.