Shake Shack Inc.
US ˙ NYSE ˙ US8190471016

SecuritySHAK / Shake Shack Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership15,909 shares
Latest Disclosed Value $ 1,407
Natixis Advisors, L.p. reports 38.59% increase in ownership of SHAK / Shake Shack Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 15,909 shares of Shake Shack Inc. (US:SHAK) valued at $1,407,469 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 11,479 shares of Shake Shack Inc.. The current value of the position is $832,677 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)
2026-05-13 2026-03-31 13F SHAKE SHACK INC CL A COM 819047101 15,909 4,430 38.59 1 0.0020
2026-02-10 2025-12-31 13F SHAKE SHACK INC CL A COM 819047101 11,479 -3,053 -21.01 1 -100.00 0.0013
2025-11-13 2025-09-30 13F SHAKE SHACK INC COM 819047101 14,532 69 0.48 1 -50.00 0.0020
2025-08-13 2025-06-30 13F SHAKE SHACK INC CL A COM 819047101 14,463 -1,132 -7.26 2 100.00 0.0032
2025-05-08 2025-03-31 13F SHAKE SHACK COM 819047101 15,595 -3,812 -19.64 1 -50.00 0.0025
2025-02-10 2024-12-31 13F SHAKE SHACK COM 819047101 19,407 7,072 57.33 3 100.00 0.0047
2024-11-06 2024-09-30 13F SHAKE SHACK COM 819047101 12,335 296 2.46 1 0.00 0.0025
2024-08-01 2024-06-30 13F SHAKE SHACK COM 819047101 12,039 -1,078 -8.22 1 0.00 0.0024
2024-04-25 2024-03-31 13F SHAKE SHACK INC CL A COM 819047101 13,117 1,625 14.14 1 0.0031
2024-02-06 2023-12-31 13F SHAKE SHACK INC CL A COM 819047101 11,492 797 7.45 1 0.0022
2023-11-13 2023-09-30 13F SHAKE SHACK COM 819047101 10,695 388 3.76 1 0.0019
2023-08-15 2023-06-30 13F SHAKE SHACK COM 819047101 10,307 10,307 1 0.0025
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.