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Ken Griffin's Red Robin Gourmet Burgers, Inc. (RRGB) position

Yes: as of Q1 2026, Ken Griffin holds 43K shares of RRGB worth an amount we cannot price (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
an amount we cannot price
Shares held
43K
% of portfolio
0.0%
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

RRGB price vs Griffin's position

1Y 3Y 5Y MAX
Dates
← Earlier —9 purchases, 6 sells6.577.588.5
Average closing price · filing quarter
—
Price range · filing quarter
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Every quarterly change

Every quarterly change
Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Reduced· Q1 2026 −15K
Quarter Q1 2026 Δ Own −26.6% Shares held 43K Filing date May 15, 2026
Q1 2026 Reduced· Q1 2026 −15K – −26.6% 43K May 15, 2026
New· Q4 2025 +58K
Quarter Q4 2025 Shares held 58K Filing date Feb 17, 2026
Q4 2025 New· Q4 2025 +58K – – 58K Feb 17, 2026
Added· Q2 2025 +4K
Quarter Q2 2025 Δ Own +6.2% Shares held 72K Filing date Aug 14, 2025
Q2 2025 Added· Q2 2025 +4K – +6.2% 72K Aug 14, 2025
New· Q1 2025 +67K
Quarter Q1 2025 Shares held 67K Filing date May 15, 2025
Q1 2025 New· Q1 2025 +67K – – 67K May 15, 2025
Added· Q2 2024 +196K
Quarter Q2 2024 Δ Own +428.2% Shares held 242K Filing date Aug 14, 2024
Q2 2024 Added· Q2 2024 +196K – +428.2% 242K Aug 14, 2024
New· Q1 2024 +46K
Quarter Q1 2024 Shares held 46K Filing date May 15, 2024
Q1 2024 New· Q1 2024 +46K – – 46K May 15, 2024
Reduced· Q3 2023 −7K
Quarter Q3 2023 Δ Own −94.0% Shares held 422 Filing date Nov 14, 2023
Q3 2023 Reduced· Q3 2023 −7K – −94.0% 422 Nov 14, 2023
Reduced· Q2 2023 −98K
Quarter Q2 2023 Δ Own −93.3% Shares held 7K Filing date Aug 14, 2023
Q2 2023 Reduced· Q2 2023 −98K – −93.3% 7K Aug 14, 2023
Added· Q1 2023 +72K
Quarter Q1 2023 Δ Own +217.3% Shares held 105K Filing date May 15, 2023
Q1 2023 Added· Q1 2023 +72K – +217.3% 105K May 15, 2023
New· Q4 2022 +33K
Quarter Q4 2022 Shares held 33K Filing date Feb 14, 2023
Q4 2022 New· Q4 2022 +33K – – 33K Feb 14, 2023
Reduced· Q2 2022 −28K
Quarter Q2 2022 Δ Own −23.7% Shares held 89K Filing date Aug 15, 2022
Q2 2022 Reduced· Q2 2022 −28K – −23.7% 89K Aug 15, 2022
Added· Q1 2022 +83K
Quarter Q1 2022 Δ Own +247.0% Shares held 117K Filing date May 16, 2022
Q1 2022 Added· Q1 2022 +83K – +247.0% 117K May 16, 2022
Reduced· Q4 2021 −16K
Quarter Q4 2021 Δ Own −31.6% Shares held 34K Filing date Feb 14, 2022
Q4 2021 Reduced· Q4 2021 −16K – −31.6% 34K Feb 14, 2022
Reduced· Q3 2021 −79K
Quarter Q3 2021 Δ Own −61.6% Shares held 49K Filing date Nov 15, 2021
Q3 2021 Reduced· Q3 2021 −79K – −61.6% 49K Nov 15, 2021
Added· Q2 2021 +52K
Quarter Q2 2021 Δ Own +67.8% Shares held 128K Filing date Aug 16, 2021
Q2 2021 Added· Q2 2021 +52K – +67.8% 128K Aug 16, 2021
Data through Q1 2026 · filed May 15, 2026
15 of 16

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Common questions

Does Ken Griffin own RRGB?

Yes. As of Q1 2026, Ken Griffin disclosed 43K shares of RRGB, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy RRGB?

Ken Griffin held RRGB since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell RRGB?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in RRGB. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of RRGB does Ken Griffin own?

Ken Griffin disclosed 43K shares of RRGB as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for RRGB?

Ken Griffin began building the RRGB position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.