Shattuck Labs, Inc.
US ˙ NasdaqGS ˙ US82024L1035

SecuritySTTK / Shattuck Labs, Inc.
InstitutionRedmile Group, LLC
Latest Disclosed Ownership6,379,095 shares
Ownership 9.90%
Redmile Group, LLC ownership in STTK / Shattuck Labs, Inc.

2025-08-26 - Redmile Group, LLC has filed an SCHEDULE 13D/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 6,379,095 shares of Shattuck Labs, Inc. (US:STTK). This represents 9.9 percent ownership of the company. In their previous filing dated 2025-08-06 , Redmile Group, LLC had reported owning 5,652,660 shares, indicating an increase of 12.85 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)
2025-08-26 2025-08-26 13D/A 5,652,660 6,379,095 12.85 9.90 -16.10
2025-08-06 2025-08-06 13D/A 5,624,960 5,652,660 0.49 11.80 0.00
2024-12-06 2024-12-06 13D/A 5,664,892 5,624,960 -0.70 11.80 -1.67
2023-12-26 2023-12-26 13D/A 5,664,892 12.00

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)
2026-05-15 2026-03-31 13F SHATTUCK LABS COM 82024L103 5,539,724 0 0.00 35,620 76.17 2.3587
2026-02-17 2025-12-31 13F SHATTUCK LABS COM 82024L103 5,539,724 0 0.00 20,220 52.72 1.4891
2025-11-14 2025-09-30 13F SHATTUCK LABS COM 82024L103 5,539,724 0 0.00 13,240 201.85 1.2882
2025-08-14 2025-06-30 13F SHATTUCK LABS COM 82024L103 5,539,724 0 0.00 4,386 -16.66 0.4668
2025-05-15 2025-03-31 13F SHATTUCK LABS COM 82024L103 5,539,724 0 0.00 5,263 -21.48 0.4975
2025-02-14 2024-12-31 13F SHATTUCK LABS COM 82024L103 5,539,724 -75,765 -1.35 6,703 -65.80 0.4672
2024-11-14 2024-09-30 13F SHATTUCK LABS COM 82024L103 5,615,489 0 0.00 19,598 -9.58 1.1546
2024-08-14 2024-06-30 13F SHATTUCK LABS COM 82024L103 5,615,489 0 0.00 21,676 -56.82 1.3105
2024-05-15 2024-03-31 13F SHATTUCK LABS COM 82024L103 5,615,489 -4,425 -0.08 50,202 25.29 1.8426
2024-02-14 2023-12-31 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 40,070 369.08 1.4331
2023-11-14 2023-09-30 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 8,542 -51.28 0.4064
2023-08-14 2023-06-30 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 17,534 6.13 0.6730
2023-05-15 2023-03-31 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 16,523 27.83 0.7169
2023-02-14 2022-12-31 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 12,926 -14.82 0.5287
2022-11-14 2022-09-30 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 15,174 -33.50 0.5886
2022-08-15 2022-06-30 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 22,817 -4.69 0.8713
2022-05-16 2022-03-31 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 23,941 -49.94 0.7473
2022-02-14 2021-12-31 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 47,825 -58.24 1.0873
2021-11-15 2021-09-30 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 114,534 -29.70 1.9976
2021-08-16 2021-06-30 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 162,921 -0.86 2.4108
2021-05-17 2021-03-31 13F SHATTUCK LABS COM 82024L103 5,619,914 0 0.00 164,326 -44.21 2.3145
2021-02-16 2020-12-31 13F SHATTUCK LABS COM 82024L103 5,619,914 5,619,914 294,540 3.5665
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.