SI-BONE, Inc.
DE ˙ DB ˙ US8257041090
11,90 € ↑0,10 (0,85%)
2026-06-03
DEL PRIS
SecurityDE:2K3 / SI-BONE, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership48,251 shares
Latest Disclosed Value $ 609,410
UBS Group AG reports 53.93% decrease in ownership of 2K3 / SI-BONE, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 48,251 shares of SI-BONE, Inc. (DE:2K3) valued at $516,286 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 104,731 shares of SI-BONE, Inc.. This represents a change in shares of -53.93% during the quarter. The current value of the position is $574,187 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)
2026-05-05 2026-03-31 13F SI BONE COM 825704109 48,251 -56,480 -53.93 609 -70.51 0.0000
2026-01-29 2025-12-31 13F SI-BONE COM 825704109 104,731 89,105 570.24 2,065 797.83 0.0003
2025-11-13 2025-09-30 13F SI-BONE COM 825704109 15,626 -107,846 -87.34 230 -90.10 0.0000
2025-08-14 2025-06-30 13F SI-BONE COM 825704109 123,472 70,682 133.89 2,324 213.92 0.0004
2025-05-13 2025-03-31 13F SI-BONE COM 825704109 52,790 -75,779 -58.94 741 -58.93 0.0001
2025-02-14 2024-12-31 13F SI-BONE COM 825704109 128,569 109,094 560.17 1,803 562.50 0.0003
2024-11-14 2024-09-30 13F SI-BONE COM 825704109 19,475 -16,833 -46.36 272 -42.00 0.0001
2024-08-14 2024-06-30 13F SI-BONE COM 825704109 36,308 -32,183 -46.99 469 -58.16 0.0001
2024-05-13 2024-03-31 13F SI-BONE COM 825704109 68,491 11,137 19.42 1,121 -6.82 0.0003
2024-02-09 2023-12-31 13F SI-BONE COM 825704109 57,354 25,522 80.18 1,204 77.96 0.0004
2023-11-09 2023-09-30 13F SI-BONE COM 825704109 31,832 769 2.48 676 -19.33 0.0002
2023-08-11 2023-06-30 13F SI-BONE COM 825704109 31,063 28,105 950.14 838 1,344.83 0.0003
2023-05-12 2023-03-31 13F SI-BONE COM 825704109 2,958 -9,049 -75.36 58 -64.42 0.0000
2023-02-08 2022-12-31 13F SI-BONE COM 825704109 12,007 7,157 147.57 163 94.05 0.0001
2022-11-10 2022-09-30 13F SI-BONE COM 825704109 4,850 1,105 29.51 84 71.43 0.0000
2022-08-10 2022-06-30 13F SI-BONE COM 825704109 3,745 -422 -10.13 49 -48.42 0.0000
2022-05-16 2022-03-31 13F SI-BONE COM 825704109 4,167 -6,883 -62.29 95 -61.22 0.0000
2022-02-14 2021-12-31 13F SI-BONE COM 825704109 11,050 10,844 5,264.08 245 6,025.00 0.0001
2021-11-15 2021-09-30 13F SI-BONE COM 825704109 206 155 303.92 4 100.00 0.0000
2021-08-13 2021-06-30 13F SI-BONE COM 825704109 51 -7,977 -99.36 2 -99.22 0.0000
2021-05-12 2021-03-31 13F SI BONE COM 825704109 8,028 2,269 39.40 255 48.26 0.0001
2021-02-11 2020-12-31 13F SI BONE COM 825704109 5,759 5,188 908.58 172 1,223.08 0.0001
2020-11-12 2020-09-30 13F SI BONE COM 825704109 571 -8,995 -94.03 13 -91.45 0.0000
2020-07-31 2020-06-30 13F SI BONE COM 825704109 9,566 -1,718 -15.23 152 12.59 0.0001
2020-05-01 2020-03-31 13F SI BONE COM 825704109 11,284 -8,711 -43.57 135 -68.60 0.0001
2020-02-14 2019-12-31 13F SI BONE COM 825704109 19,995 8,292 70.85 430 108.74 0.0001
2019-11-14 2019-09-30 13F SI BONE COM 825704109 11,703 6,965 147.00 206 114.58 0.0001
2019-08-14 2019-06-30 13F SI BONE COM 825704109 4,738 4,614 3,720.97 96 4,700.00 0.0000
2019-05-14 2019-03-31 13F SI BONE COM 825704109 124 -3,891 -96.91 2 -97.62 0.0000
2019-02-14 2018-12-31 13F SI BONE COM 825704109 4,015 4,015 84 0.0000
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.