Boundless Bio, Inc.
US ˙ NasdaqGS ˙ US05070R1041

SecurityBOLD / Boundless Bio, Inc.
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership16,374 shares
Latest Disclosed Value $ 18,011
Squarepoint Ops LLC ownership in BOLD / Boundless Bio, Inc.

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 16,374 shares of Boundless Bio, Inc. (US:BOLD) valued at $18,011 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of Boundless Bio, Inc.. The current value of the position is $23,579 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 BOUNDLESS BIO COM 10170A100 16,374 16,374 18 0.0000
2026-02-13 2025-12-31 13F BOUNDLESS BIO COM 10170A100 0 -50,771 -100.00 0 -100.00
2025-11-14 2025-09-30 13F BOUNDLESS BIO COM 10170A100 50,771 32,372 175.94 62 244.44 0.0001
2025-08-27 2025-06-30 13F/A-1 BOUNDLESS BIO COM 10170A100 18,399 18,399 19 0.0000
2025-08-14 2025-06-30 13F BOUNDLESS BIO COM 10170A100 18,399 18,399 19 0.0000
2025-08-27 2025-03-31 13F/A-1 BOUNDLESS BIO COM 10170A100 0 -32,182 -100.00 0 -100.00
2025-05-15 2025-03-31 13F BOUNDLESS BIO COM 10170A100 0 -32,182 0
2025-02-14 2024-12-31 13F BOUNDLESS BIO COM 10170A100 32,182 932 2.98 93 -13.89 0.0001
2024-11-14 2024-09-30 13F BOUNDLESS BIO COM 10170A100 31,250 0 0.00 108 -10.00 0.0002
2024-08-14 2024-06-30 13F BOUNDLESS BIO COM 10170A100 31,250 0 0.00 121 -73.03 0.0002
2024-05-15 2024-03-31 13F BOUNDLESS BIO COM 10170A100 31,250 31,250 445 0.0008
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.