Sleep Number Corporation
US ˙ NasdaqGS ˙ US83125X1037

SecuritySNBR / Sleep Number Corporation
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,016,853 shares
Ownership 3.70%
Dimensional Fund Advisors Lp ownership in SNBR / Sleep Number Corporation

2021-02-12 - Dimensional Fund Advisors Lp has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,016,853 shares of Sleep Number Corporation (US:SNBR). This represents 3.7 percent ownership of the company. In their previous filing dated 2020-02-12 , Dimensional Fund Advisors Lp had reported owning 1,597,857 shares, indicating a decrease of -36.36 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2021-02-12 2021-02-12 13G/A 1,597,857 1,016,853 -36.36 3.70 -34.16
2020-02-12 2020-02-12 13G/A 1,755,694 1,597,857 -8.99 5.62 6.24
2019-02-08 2019-02-08 13G 1,755,694 5.29

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-07 2026-03-31 13F SLEEP NUMBER COM 83125X103 96,888 -138,486 -58.84 174 -91.31 0.0000
2026-02-12 2025-12-31 13F SLEEP NUMBER COM 83125X103 235,374 -149,496 -38.84 1,991 -26.29 0.0004
2025-11-12 2025-09-30 13F SLEEP NUMBER COM 83125X103 384,870 -23,874 -5.84 2,702 -2.17 0.0006
2025-08-12 2025-06-30 13F SLEEP NUMBER COM 83125X103 408,744 -34,703 -7.83 2,761 -1.78 0.0006
2025-05-13 2025-03-31 13F SLEEP NUMBER COM 83125X103 443,447 18,169 4.27 2,811 -56.63 0.0007
2025-02-13 2024-12-31 13F SLEEP NUMBER COM 83125X103 425,278 41,217 10.73 6,482 -7.87 0.0016
2024-11-07 2024-09-30 13F SLEEP NUMBER COM 83125X103 384,061 -28,248 -6.85 7,036 78.33 0.0017
2024-08-09 2024-06-30 13F SLEEP NUMBER COM 83125X103 412,309 -35,504 -7.93 3,946 -45.04 0.0010
2024-05-10 2024-03-31 13F SLEEP NUMBER COM 83125X103 447,813 -132,626 -22.85 7,178 -16.61 0.0019
2024-02-07 2023-12-31 13F SLEEP NUMBER COM 83125X103 580,439 -87,621 -13.12 8,608 -47.60 0.0025
2023-11-09 2023-09-30 13F SLEEP NUMBER COM 83125X103 668,060 3,079 0.46 16,428 -9.44 0.0054
2023-08-09 2023-06-30 13F SLEEP NUMBER COM 83125X103 664,981 -14,663 -2.16 18,141 -12.23 0.0058
2023-05-12 2023-03-31 13F SLEEP NUMBER COM 83125X103 679,644 -15,814 -2.27 20,667 114,716.67 0.0070
2023-02-09 2022-12-31 13F SLEEP NUMBER COM 83125X103 695,458 10,400 1.52 18 -99.92 0.0053
2022-11-10 2022-09-30 13F SLEEP NUMBER COM 83125X103 685,058 5,341 0.79 23,162 10.10 0.0089
2022-08-12 2022-06-30 13F SLEEP NUMBER COM 83125X103 679,717 -39,684 -5.52 21,037 -42.34 0.0075
2022-05-13 2022-03-31 13F SLEEP NUMBER COM 83125X103 719,401 2,805 0.39 36,483 -33.54 0.0112
2022-02-09 2021-12-31 13F SLEEP NUMBER COM 83125X103 716,596 -99,274 -12.17 54,892 -28.04 0.0166
2021-11-12 2021-09-30 13F SLEEP NUMBER COM 83125X103 815,870 -59,474 -6.79 76,282 -20.74 0.0246
2021-08-12 2021-06-30 13F SLEEP NUMBER COM 83125X103 875,344 -56,123 -6.03 96,244 -28.13 0.0305
2021-05-14 2021-03-31 13F SLEEP NUMBER COM 83125X103 931,467 -85,386 -8.40 133,920 60.88 0.0443
2021-03-08 2020-12-31 13F/A-2 SLEEP NUMBER COM 83125X103 1,016,853 -25,577 -2.45 83,241 63.27 0.0301
2021-02-11 2020-12-31 13F SLEEP NUMBER COM 83125X103 1,016,853 -25,577 83,241 30,062.2247
2020-11-12 2020-09-30 13F SLEEP NUMBER COM 83125X103 1,042,430 -245,761 -19.08 50,983 -4.96 0.0216
2020-08-13 2020-06-30 13F SLEEP NUMBER COM 83125X103 1,288,191 -114,796 -8.18 53,642 99.54 0.0236
2020-05-14 2020-03-31 13F SLEEP NUMBER COM 83125X103 1,402,987 -194,870 -12.20 26,883 -65.83 0.0140
2020-02-14 2019-12-31 13F SLEEP NUMBER COM 83125X103 1,597,857 -52,092 -3.16 78,679 15.41 0.0287
2019-11-12 2019-09-30 13F SLEEP NUMBER COM 83125X103 1,649,949 -79,185 -4.58 68,174 -2.38 0.0265
2019-08-13 2019-06-30 13F SLEEP NUMBER COM 83125X103 1,729,134 -21,905 -1.25 69,838 -15.14 0.0271
2019-08-12 2019-03-31 13F/A-2 SLEEP NUMBER COM 83125X103 1,751,039 -4,655 -0.27 82,300 47.73 0.0328
2019-05-10 2019-03-31 13F SLEEP NUMBER COM 83125X103 1,751,039 -4,655 82,300
2019-02-26 2018-12-31 13F/A-1 SLEEP NUMBER COM 83125X103 1,755,694 6,014 0.34 55,709 -13.43 0.0252
2019-02-13 2018-12-31 13F SLEEP NUMBER COM 83125X103 1,755,694 6,014 55,709
2018-11-13 2018-09-30 13F SLEEP NUMBER COM 83125X103 1,749,680 -5,724 -0.33 64,353 26.32 0.0245
2018-08-10 2018-06-30 13F SLEEP NUMBER COM 83125X103 1,755,404 -14,148 -0.80 50,943 -18.10 0.0203
2018-05-11 2018-03-31 13F SLEEP NUMBER COM 83125X103 1,769,552 -18,030 -1.01 62,200 -7.43 0.0259
2018-02-12 2017-12-31 13F SLEEP NUMBER COM 83125X103 1,787,582 -287 -0.02 67,196 21.05 0.0279
2017-11-13 2017-09-30 13F SELECT COMFORT COM 81616X103 1,787,869 -6,932 -0.39 55,513 -12.85 0.0243
2017-08-11 2017-06-30 13F SELECT COMFORT COM 81616X103 1,794,801 -9,109 -0.50 63,698 42.44 0.0294
2017-05-12 2017-03-31 13F SELECT COMFORT COM 81616X103 1,803,910 -11,342 -0.62 44,718 8.91 0.0214
2017-02-09 2016-12-31 13F SELECT COMFORT COM 81616X103 1,815,252 -63,112 -3.36 41,061 1.20 0.0205
2016-11-10 2016-09-30 13F SELECT COMFORT COM 81616X103 1,878,364 68,487 3.78 40,574 4.86 0.0219
2016-08-09 2016-06-30 13F SELECT COMFORT COM 81616X103 1,809,877 55,228 3.15 38,695 13.73 0.0223
2016-05-13 2016-03-31 13F SELECT COMFORT COM 81616X103 1,754,649 113,318 6.90 34,023 -3.18 0.0204
2016-02-10 2015-12-31 13F SELECT COMFORT COM 81616X103 1,641,331 -30,126 -1.80 35,141 -3.91 0.0219
2015-11-13 2015-09-30 13F SELECT COMFORT COM 81616X103 1,671,457 8,871 0.53 36,571 -26.85 0.0240
2015-08-14 2015-06-30 13F SELECT COMFORT COM 81616X103 1,662,586 89,908 5.72 49,994 -7.78 0.0306
2015-05-14 2015-03-31 13F SELECT COMFORT COM 81616X103 1,572,678 55,031 3.63 54,209 32.15 0.0342
2015-02-06 2014-12-31 13F SELECT COMFORT COM 81616X103 1,517,647 174,518 12.99 41,022 46.00 0.0269
2014-11-13 2014-09-30 13F SELECT COMFORT COM 81616X103 1,343,129 258,364 23.82 28,098 25.38 0.0199
2014-08-08 2014-06-30 13F SELECT COMFORT COM 81616X103 1,084,765 226,814 26.44 22,411 44.48 0.0156
2014-05-14 2014-03-31 13F SELECT COMFORT COM 81616X103 857,951 -9,200 -1.06 15,511 -15.19 0.0116
2014-02-12 2013-12-31 13F SELECT COMFORT COM 81616X103 867,151 62,710 7.80 18,289 -6.63 0.0143
2013-11-13 2013-09-30 13F SELECT COMFORT COM 81616X103 804,441 152,801 23.45 19,588 19.95 0.0170
2013-08-15 2013-06-30 13F SELECT COMFORT COM 81616X103 651,640 651,640 16,330 0.0154
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.