ResMed Inc.
US ˙ NYSE ˙ US7611521078

SecurityRMD / ResMed Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership128,614 shares
Latest Disclosed Value $ 30,978,003
Sei Investments Co ownership in RMD / ResMed Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 128,614 shares of ResMed Inc. (US:RMD) valued at $30,979,254 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 149,658 shares of ResMed Inc.. This represents a change in shares of -14.06% during the quarter. The current value of the position is $23,981,366 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (RMD) in the form of stock options.

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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

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)
2026-02-13 2025-12-31 13F RESMED COM 761152107 128,614 -21,044 -14.06 30,978 -24.38 0.0306
2025-11-13 2025-09-30 13F RESMED COM 761152107 149,658 3,745 2.57 40,965 8.82 0.0441
2025-08-14 2025-06-30 13F RESMED COM 761152107 145,913 -20,195 -12.16 37,645 1.24 0.0436
2025-05-14 2025-03-31 13F/A-1 RESMED COM 761152107 166,108 12,583 8.20 37,183 5.91 0.0479
2025-05-13 2025-03-31 13F RESMED COM 761152107 151,806 -1,719 34,383 0.0374
2025-02-11 2024-12-31 13F RESMED COM 761152107 153,525 115,192 300.50 35,110 275.22 0.0451
2024-11-12 2024-09-30 13F RESMED COM 761152107 38,333 1,832 5.02 9,358 33.94 0.0122
2024-08-13 2024-06-30 13F RESMED COM 761152107 36,501 14,793 68.15 6,987 62.50 0.0099
2024-05-07 2024-03-31 13F RESMED COM 761152107 21,708 2,484 12.92 4,299 30.04 0.0063
2024-02-14 2023-12-31 13F RESMED COM 761152107 19,224 2,324 13.75 3,306 32.29 0.0053
2023-11-14 2023-09-30 13F RESMED COM 761152107 16,900 -17,128 -50.34 2,499 -66.39 0.0045
2023-08-11 2023-06-30 13F RESMED COM 761152107 34,028 1,332 4.07 7,436 3.84 0.0130
2023-05-12 2023-03-31 13F RESMED COM 761152107 32,696 8,168 33.30 7,160 40.25 0.0133
2023-02-10 2022-12-31 13F RESMED COM 761152107 24,528 -11,821 -32.52 5,105 -35.66 0.0113
2022-11-14 2022-09-30 13F RESMED COM 761152107 36,349 505 1.41 7,935 6.35 0.0177
2022-08-15 2022-06-30 13F RESMED COM 761152107 35,844 -4,896 -12.02 7,461 -23.72 0.0161
2022-05-13 2022-03-31 13F RESMED COM 761152107 40,740 2,955 7.82 9,781 -1.64 0.0197
2022-02-14 2021-12-31 13F RESMED COM 761152107 37,785 -1,448 -3.69 9,944 -4.64 0.0187
2021-11-12 2021-09-30 13F RESMED COM 761152107 39,233 5,329 15.72 10,428 26.17 0.0219
2021-08-06 2021-06-30 13F RESMED COM 761152107 33,904 -43,693 -56.31 8,265 -45.37 0.0183
2021-05-12 2021-03-31 13F RESMED COM 761152107 77,597 18,791 31.95 15,130 20.98 0.0381
2021-02-08 2020-12-31 13F RESMED COM 761152107 58,806 -15,323 -20.67 12,506 -1.57 0.0323
2020-12-04 2020-09-30 13F/A-1 RESMED COM 761152107 74,129 24,584 49.62 12,705 33.34 0.0368
2020-11-06 2020-09-30 13F RESMED COM 761152107 75,363 25,818 12,917 31,101.2640
2020-08-17 2020-06-30 13F/A-1 RESMED COM 761152107 49,545 14,573 41.67 9,528 85.08 0.0296
2020-08-11 2020-06-30 13F RESMED COM 761152107 34,282 -690 5,555 15,068.2332
2020-05-14 2020-03-31 13F RESMED COM 761152107 34,972 5,041 16.84 5,148 10.95 0.0189
2020-02-06 2019-12-31 13F RESMED COM 761152107 29,931 10,317 52.60 4,640 75.03 0.0138
2019-11-12 2019-09-30 13F RESMED COM 761152107 19,614 -41,164 -67.73 2,651 -64.26 0.0068
2019-08-14 2019-06-30 13F RESMED COM 761152107 60,778 -42,380 -41.08 7,418 -30.92 0.0242
2019-05-15 2019-03-31 13F RESMED COM 761152107 103,158 56,442 120.82 10,739 99.02 0.0361
2019-02-13 2018-12-31 13F RESMED COM 761152107 46,716 901 1.97 5,396 2.02 0.0192
2018-11-08 2018-09-30 13F RESMED COM 761152107 45,815 -28,816 -38.61 5,289 -31.58 0.0192
2018-08-03 2018-06-30 13F RESMED COM 761152107 74,631 46,408 164.43 7,730 178.16 0.0263
2018-05-11 2018-03-31 13F RESMED COM 761152107 28,223 8,813 45.40 2,779 68.94 0.0107
2018-02-08 2017-12-31 13F RESMED COM 761152107 19,410 1,719 9.72 1,645 20.87 0.0057
2017-11-06 2017-09-30 13F RESMED COM 761152107 17,691 14,245 413.38 1,361 407.84 0.0048
2017-07-31 2017-06-30 13F RESMED COM 761152107 3,446 -3,371 -49.45 268 -45.31 0.0011
2017-05-05 2017-03-31 13F RESMED COM 761152107 6,817 4,993 273.74 490 333.63 0.0021
2017-02-02 2016-12-31 13F RESMED COM 761152107 1,824 -348 -16.02 113 -19.86 0.0005
2016-11-04 2016-09-30 13F RESMED COM 761152107 2,172 450 26.13 141 29.36 0.0007
2016-08-11 2016-06-30 13F RESMED COM 761152107 1,722 450 35.38 109 47.30 0.0007
2016-05-10 2016-03-31 13F/A-1 RESMED COM 761152107 1,272 349 37.81 74 48.00 0.0005
2016-02-03 2015-12-31 13F RESMED COM 761152107 923 603 188.44 50 194.12 0.0003
2015-11-02 2015-09-30 13F/A-1 RESMED COM 761152107 320 -4 -1.23 17 -10.53 0.0002
2015-10-30 2015-09-30 13F RESMED COM 761152107 320 17
2015-08-07 2015-06-30 13F/A-1 REPROS THERAPEUTICS PUT 761152107 0 -326 -100.00 0 -100.00
2015-08-07 2015-06-30 13F/A-1 RESMED COM 761152107 324 -2 -0.61 19 -13.64 0.0002
2015-08-04 2015-06-30 13F RESMED COM 761152107 324 -2 19 0.0002
2015-05-14 2015-03-31 13F/A-1 RESMED COM 761152107 326 -8 -2.40 22 10.00 0.0002
2015-05-01 2015-03-31 13F REPROS THERAPEUTICS PUT 761152107 326 326 22 0.0002
2015-02-10 2014-12-31 13F RESMED COM 761152107 334 334 20 0.0002
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
(%)
2015-08-07 2015-06-30 13F/A REPROS THERAPEUTICS PUT 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-01 2015-03-31 13F REPROS THERAPEUTICS PUT 326 22 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.