SI-BONE, Inc.
DE ˙ DB ˙ US8257041090
11,90 € 0,00 (0,00%)
2026-06-04
AKTIENPREIS
SecurityDE:2K3 / SI-BONE, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership472,619 shares
Latest Disclosed Value $ 5,969,178
Renaissance Technologies Llc reports 101.63% increase in ownership of 2K3 / SI-BONE, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 472,619 shares of SI-BONE, Inc. (DE:2K3) valued at $5,057,023 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 234,400 shares of SI-BONE, Inc.. This represents a change in shares of 101.63% during the quarter. The current value of the position is $5,624,166 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)
2026-05-14 2026-03-31 13F SI BONE COM 825704109 472,619 238,219 101.63 5,969 29.14 0.0093
2026-02-12 2025-12-31 13F SI-BONE COM 825704109 234,400 -265,300 -53.09 4,622 -37.16 0.0072
2025-11-13 2025-09-30 13F SI-BONE COM 825704109 499,700 80,000 19.06 7,356 -6.88 0.0097
2025-08-13 2025-06-30 13F SI-BONE COM 825704109 419,700 206,600 96.95 7,899 164.24 0.0105
2025-05-14 2025-03-31 13F SI-BONE COM 825704109 213,100 101,700 91.29 2,990 91.48 0.0045
2025-02-13 2024-12-31 13F SI-BONE COM 825704109 111,400 111,400 1,562 0.0023
2024-11-13 2024-09-30 13F SI-BONE COM 825704109 0 -130,700 -100.00 0 -100.00
2024-08-09 2024-06-30 13F SI-BONE COM 825704109 130,700 -91,700 -41.23 1,690 56,200.00 0.0029
2024-05-13 2024-03-31 13F SI-BONE COM 825704109 222,400 89,700 67.60 4 50.00 0.0057
2024-02-13 2023-12-31 13F SI-BONE COM 825704109 132,700 -35,000 -20.87 3 -33.33 0.0043
2023-11-14 2023-09-30 13F SI-BONE COM 825704109 167,700 126,600 308.03 4 200.00 0.0061
2023-08-11 2023-06-30 13F SI-BONE COM 825704109 41,100 -90,300 -68.72 1 -50.00 0.0016
2023-05-12 2023-03-31 13F SI-BONE COM 825704109 131,400 131,400 3 0.0034
2021-11-12 2021-09-30 13F SI-BONE COM 825704109 0 -87,801 -100.00 0 -100.00
2021-08-13 2021-06-30 13F SI-BONE COM 825704109 87,801 -107,800 -55.11 2,763 -55.59 0.0034
2021-05-13 2021-03-31 13F SI BONE COM 825704109 195,601 -53,700 -21.54 6,222 -16.53 0.0077
2021-02-10 2020-12-31 13F SI BONE COM 825704109 249,301 32,501 14.99 7,454 44.96 0.0081
2020-11-13 2020-09-30 13F SI BONE COM 825704109 216,800 7,100 3.39 5,142 53.81 0.0051
2020-08-13 2020-06-30 13F SI BONE COM 825704109 209,700 -14,800 -6.59 3,343 24.60 0.0029
2020-05-14 2020-03-31 13F SI BONE COM 825704109 224,500 159,200 243.80 2,683 91.10 0.0026
2020-02-13 2019-12-31 13F SI BONE COM 825704109 65,300 24,400 59.66 1,404 94.19 0.0011
2019-11-13 2019-09-30 13F SI BONE COM 825704109 40,900 40,900 723 0.0006
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.