ResMed Inc.
MX ˙ BMV ˙ US7611521078
SecurityMX:RMD / ResMed Inc.
InstitutionNomura Holdings Inc
Latest Disclosed Ownership36,993 shares
Latest Disclosed Value $ 8,304,189
Nomura Holdings Inc ownership in RMD / ResMed Inc.

On May 15, 2026 - Nomura Holdings Inc filed a 13F-HR form disclosing ownership of 36,993 shares of ResMed Inc. (MX:RMD) valued at $8,304,189 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 25,240 shares of ResMed Inc.. This represents a change in shares of 46.56% during the quarter.

Nomura Holdings Inc has a history of taking positions in derivatives of the underlying security (RMD) in the form of stock options. The firm currently holds call options representing 4,800 of underlying shares valued at $1,077,504 USD and put options representing 53,400 of underlying shares valued at $11,987,232 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:RMD / ResMed Inc. Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F RESMED COM 761152107 36,993 11,753 46.56 8,304 36.60 0.0169
2026-02-17 2025-12-31 13F RESMED COM 761152107 25,240 3,363 15.37 6,080 1.52 0.0081
2025-11-14 2025-09-30 13F RESMED COM 761152107 21,877 19,805 955.84 5,988 1,021.35 0.0093
2025-08-14 2025-06-30 13F RESMED COM 761152107 2,072 -18,477 -89.92 535 -88.39 0.0009
2025-05-15 2025-03-31 13F RESMED COM 761152107 20,549 15,708 324.48 4,600 315.45 0.0086
2025-02-14 2024-12-31 13F RESMED COM 761152107 4,841 4,841 1,107 0.0015
2025-01-13 2024-09-30 13F/A-1 RESMED COM 761152107 0 -2,127 -100.00 0 -100.00
2024-11-14 2024-09-30 13F RESMED COM 761152107 0 0
2024-08-14 2024-06-30 13F RESMED COM 761152107 2,127 952 81.02 407 75.43 0.0008
2024-05-15 2024-03-31 13F RESMED COM 761152107 1,175 -1,783 -60.28 233 -54.33 0.0006
2024-03-27 2023-12-31 13F/A-1 RESMED COM 761152107 2,958 -2,542 -46.22 509 -37.52 0.0014
2024-02-14 2023-12-31 13F RESMED COM 761152107 2,958 -2,542 509 0.0010
2023-11-14 2023-09-30 13F RESMED COM 761152107 5,500 5,500 813 0.0023
2023-08-14 2023-06-30 13F RESMED COM 761152107 0 -1,058 -100.00 0 -100.00
2023-05-15 2023-03-31 13F RESMED COM 761152107 1,058 -2,169 -67.21 232 0.0007
2023-02-15 2022-12-31 13F/A-1 RESMED CMN 761152107 3,227 3,227 1 0.0027
2022-11-15 2022-09-30 13F RESMED CMN 761152107 0 -2,075 -100.00 0 -100.00
2022-08-17 2022-06-30 13F/A-1 RESMED CMN 761152107 2,075 2,075 448 0.0015
2022-08-15 2022-06-30 13F RESMED CMN 761152107 2,075 2,075 448 0.0012
2022-05-17 2022-03-31 13F RESMED CMN 761152107 0 -2,805 -100.00 0 -100.00
2022-02-14 2021-12-31 13F RESMED CMN 761152107 2,805 -582 -17.18 731 -17.68 0.0019
2021-11-15 2021-09-30 13F RESMED CMN 761152107 3,387 867 34.40 888 43.00 0.0022
2021-08-16 2021-06-30 13F RESMED CMN 761152107 2,520 1,057 72.25 621 0.0016
2021-05-17 2021-03-31 13F RESMED CMN 761152107 1,463 -3,778 -72.09 0 -100.00 0.0006
2021-02-16 2020-12-31 13F RESMED CMN 761152107 5,241 1,645 45.75 1 -99.84 0.0019
2020-11-12 2020-09-30 13F RESMED CMN 761152107 3,596 3,596 616 0.0014
2020-05-15 2020-03-31 13F/A-1 RESMED CMN 761152107 0 -3,957 -100.00 0 -100.00
2020-02-14 2019-12-31 13F RESMED CMN 761152107 3,957 -1,043 -20.86 613 -0.65 0.0023
2019-08-23 2019-06-30 13F/A-1 RESMED CMN 761152107 5,000 5,000 617 0.0027
2019-08-14 2019-06-30 13F RESMED CMN 761152107 5,000 5,000 617
2018-08-17 2018-06-30 13F/A-1 RESMED CMN 761152107 0 -11,249 -100.00 0 -100.00
2018-05-14 2018-03-31 13F/A-1 RESMED CMN 761152107 11,249 1,717 18.01 1,106 36.71 0.0019
2018-05-14 2018-03-31 13F RESMED CMN 761152107 20,781 1,915
2018-02-14 2017-12-31 13F RESMED CMN 761152107 9,532 -4,316 -31.17 809 -24.04 0.0014
2017-11-14 2017-09-30 13F RESMED CMN 761152107 13,848 13,848 1,065 0.0022
2017-08-15 2017-06-30 13F RESMED CMN 761152107 0 -2,800 -100.00 0 -100.00
2017-05-18 2017-03-31 13F/A-1 RESMED CMN 761152107 2,800 2,800 201 0.0005
2017-05-15 2017-03-31 13F RESMED CMN 761152107 2,800 201
2016-09-02 2016-06-30 13F/A-1 RESMED CMN 761152107 0 -12,318 -100.00 0 -100.00
2016-05-16 2016-03-31 13F RESMED CMN 761152107 12,318 7,917 179.89 709 199.16 0.0024
2016-02-12 2015-12-31 13F RESMED CMN 761152107 4,401 4,401 0.00 237 0.0007
2015-11-16 2015-09-30 13F RESMED CMN 761152107 0 -52,317 -100.00 0 -100.00
2015-08-14 2015-06-30 13F RESMED CMN 761152107 52,317 52,317 0.00 2,924 0.0082
2015-02-17 2014-12-31 13F RESMED CMN 761152107 0 -9,623 -100.00 0 -100.00
2014-11-14 2014-09-30 13F RESMED CMN 761152107 9,623 -27,458 -74.05 475 -74.68 0.0013
2014-08-13 2014-06-30 13F RESMED CMN 761152107 37,081 21,294 134.88 1,876 152.15 0.0005
2014-02-14 2013-12-31 13F RESMED CMN 761152107 15,787 -88,493 -84.86 744 -86.52 0.0034
2013-11-14 2013-09-30 13F RESMED CMN 761152107 104,280 36,686 54.27 5,519 80.77 0.0332
2013-08-15 2013-06-30 13F RESMED CMN 761152107 67,594 67,594 3,053 0.0248
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F RESMED COM Call 4,800 0.00 1,078 -6.83 n/a n/a n/a
2026-02-17 2025-12-31 13F RESMED COM Call 4,800 0.00 1,156 -11.96 n/a n/a n/a
2025-11-14 2025-09-30 13F RESMED COM Call 4,800 1,314 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F RESMED COM Put 53,400 0.00 11,987 -6.80 n/a n/a n/a
2026-02-17 2025-12-31 13F RESMED COM Put 53,400 0.00 12,862 -12.01 n/a n/a n/a
2025-11-14 2025-09-30 13F RESMED COM Put 53,400 14,617 n/a n/a n/a
2025-08-18 2025-06-30 13F/A RESMED COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F RESMED COM Put 0 0 n/a n/a n/a
2025-05-15 2025-03-31 13F RESMED COM Put 15,000 3,358 n/a n/a n/a
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.