Sleep Number Corporation
US ˙ NasdaqGS ˙ US83125X1037

SecuritySNBR / Sleep Number Corporation
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership161,571 shares
Latest Disclosed Value $ 290,020
Engineers Gate Manager LP ownership in SNBR / Sleep Number Corporation

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 161,571 shares of Sleep Number Corporation (US:SNBR) valued at $290,020 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Sleep Number Corporation. The current value of the position is $172,073 USD.

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)
2026-05-15 2026-03-31 13F SLEEP NUMBER COM 83125X103 161,571 161,571 290 0.0036
2026-02-17 2025-12-31 13F SLEEP NUMBER COM 83125X103 0 -25,606 -100.00 0 -100.00
2025-11-14 2025-09-30 13F SLEEP NUMBER COM 83125X103 25,606 25,606 180 0.0021
2025-08-14 2025-06-30 13F SLEEP NUMBER COM 83125X103 0 -16,554 -100.00 0 -100.00
2025-05-15 2025-03-31 13F SLEEP NUMBER COM 83125X103 16,554 16,554 105 0.0018
2024-05-15 2024-03-31 13F SLEEP NUMBER COM 83125X103 0 -21,129 -100.00 0 -100.00
2024-02-14 2023-12-31 13F SLEEP NUMBER COM 83125X103 21,129 21,129 313 0.0089
2023-08-14 2023-06-30 13F SLEEP NUMBER COM 83125X103 0 -13,964 -100.00 0 -100.00
2023-05-15 2023-03-31 13F SLEEP NUMBER COM 83125X103 13,964 13,964 425 0.0177
2023-02-14 2022-12-31 13F SLEEP NUMBER COM 83125X103 0 -9,511 -100.00 0 -100.00
2022-11-14 2022-09-30 13F SLEEP NUMBER COM 83125X103 9,511 9,511 322 0.0200
2022-05-16 2022-03-31 13F SLEEP NUMBER COM 83125X103 0 -7,626 -100.00 0 -100.00
2022-02-14 2021-12-31 13F SLEEP NUMBER COM 83125X103 7,626 5,196 213.83 584 157.27 0.0263
2021-11-15 2021-09-30 13F SLEEP NUMBER COM 83125X103 2,430 2,430 227 0.0129
2021-08-16 2021-06-30 13F SLEEP NUMBER COM 83125X103 0 -10,520 -100.00 0 -100.00
2021-05-17 2021-03-31 13F SLEEP NUMBER COM 83125X103 10,520 10,520 1,510 0.0748
2021-02-16 2020-12-31 13F SLEEP NUMBER COM 83125X103 0 -4,270 -100.00 0 -100.00
2020-11-16 2020-09-30 13F SLEEP NUMBER COM 83125X103 4,270 -41,977 -90.77 209 -89.15 0.0098
2020-08-17 2020-06-30 13F SLEEP NUMBER COM 83125X103 46,247 -80,045 -63.38 1,926 -20.41 0.0980
2020-05-15 2020-03-31 13F SLEEP NUMBER COM 83125X103 126,292 108,743 619.65 2,420 180.09 0.1743
2020-02-14 2019-12-31 13F SLEEP NUMBER COM 83125X103 17,549 -22,163 -55.81 864 -47.35 0.0380
2019-11-14 2019-09-30 13F SLEEP NUMBER COM 83125X103 39,712 39,712 1,641 0.0833
2019-08-14 2019-06-30 13F SLEEP NUMBER COM 83125X103 0 -78,520 -100.00 0 -100.00
2019-05-15 2019-03-31 13F SLEEP NUMBER COM 83125X103 78,520 44,109 128.18 3,690 237.91 0.2235
2019-02-14 2018-12-31 13F SLEEP NUMBER COM 83125X103 34,411 34,411 1,092 0.0874
2018-08-03 2018-06-30 13F SLEEP NUMBER COM 83125X103 0 -74,348 -100.00 0 -100.00
2018-05-07 2018-03-31 13F SLEEP NUMBER COM 83125X103 74,348 74,348 2,613 0.1741
2018-02-01 2017-12-31 13F SELECT COMFORT COM 81616X103 0 -71,432 -100.00 0 -100.00
2017-11-13 2017-09-30 13F SELECT COMFORT COM 81616X103 71,432 65,118 1,031.33 2,218 890.18 0.1866
2017-08-10 2017-06-30 13F SELECT COMFORT COM 81616X103 6,314 -79,378 -92.63 224 -89.45 0.0202
2017-05-05 2017-03-31 13F SELECT COMFORT COM 81616X103 85,692 85,692 2,124 0.2109
2016-08-11 2016-06-30 13F SELECT COMFORT COM 81616X103 0 -15,090 -100.00 0 -100.00
2016-05-09 2016-03-31 13F SELECT COMFORT COM 81616X103 15,090 15,090 0.00 293 0.0228
2016-02-05 2015-12-31 13F SELECT COMFORT COM 81616X103 0 -60,993 -100.00 0 -100.00
2015-11-16 2015-09-30 13F SELECT COMFORT COM 81616X103 60,993 25,282 70.80 1,335 24.30 0.1137
2015-08-14 2015-06-30 13F SELECT COMFORT COM 81616X103 35,711 1,391 4.05 1,074 -9.21 0.1051
2015-05-15 2015-03-31 13F SELECT COMFORT COM 81616X103 34,320 9,735 39.60 1,183 77.89 0.1573
2015-02-17 2014-12-31 13F SELECT COMFORT COM 81616X103 24,585 24,585 665 0.1894
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.