Second Circuit
Robert David Sack
Judge, U.S. Court of Appeals for the Second Circuit
Appointment
- Court
- U.S. Court of Appeals for the Second Circuit
- Title
- Judge
- Appointed by
- William J. ClintonDemocratic
- Seat
- CA21402
- Nominated
- Nov. 6, 1997
- Committee hearing
- May 14, 1998
- Committee action
- Reported (favorably)May 21, 1998
- Senate vote
- Voice
- Confirmed
- June 15, 1998
- Commissioned
- June 16, 1998
- ABA rating
- Qualified
- Senior status
- Aug. 6, 2009
Source Federal Judicial Center.
Recent judicial activity
Opinions authored and panels sat on, most recent first.
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Sept. 25panel identified Sat on the panel in United States v. Ceasar
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Sept. 3panel identified Sat on the panel in United States v. Stuart
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Aug. 10
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July 23
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June 30
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June 1panel identified Sat on the panel in United States v. Simmons
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March 23
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Feb. 25panel identified Sat on the panel in United States v. Jimenez
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Jan. 16panel identified Sat on the panel in United States v. Belloisi
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Nov. 25, 2025opinion issued Authored the opinion in Ziparo v. CSX Transportation
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Sept. 29, 2025opinion issued Authored the opinion in Gimpel v. Hain Celestial Group, Inc.
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Sept. 19, 2025panel identified Sat on the panel in Frey v. City of New York
Cases
Appellate cases on which this judge sat, drawn from panel information published with each decision.
| Case | No. | Status | Date | |
|---|---|---|---|---|
| United States v. Ceasar | 25-949(L) | Decided | Sept. 25, 2026 | |
| United States v. Stuart | 25-599 | Decided | Sept. 3, 2026 | |
| Rosenthal v. Roosevelt Island Operating Corporation | 25-1667 | Decided | Aug. 10, 2026 | |
| Raymond v. 1199SEIU National Benefit Fund | 25-707 | Decided | July 23, 2026 | Authored |
| N of Contracting Plumbers v. City of New York; Mulhern Gas Co., Inc. v. Mosley | 25-977; 25-2041 | Decided | June 30, 2026 | |
| United States v. Simmons | 23-7400 | Decided | June 1, 2026 | |
| Leadenhall Capital Partners LLP v. Advantage Capital Holdings, LLC | 24-2647 | Decided | March 23, 2026 | |
| United States v. Jimenez | 24-1661 | Decided | Feb. 25, 2026 | |
| United States v. Belloisi | 24-2614 | Decided | Jan. 16, 2026 | |
| Ziparo v. CSX Transportation | 23-262 | Decided | Nov. 25, 2025 | Authored |
| Gimpel v. Hain Celestial Group, Inc. | 23-7612 | Decided | Sept. 29, 2025 | Authored |
| Frey v. City of New York | 23-365 | Decided | Sept. 19, 2025 | |
| Mid-New York Environ. v. Dragon Springs | 24-2451 | Decided | Sept. 16, 2025 | |
| Town of Newburgh v. Newburgh EOM LLC | 24-328 | Decided | Sept. 11, 2025 | Authored |
| United States v. Phillips | 24-1908 | Decided | Sept. 3, 2025 | Authored |
| United States v. James | 24-849 | Decided | Aug. 29, 2025 | |
| New Jersey v. Bessent; Village of Scarsdale v. IRS | 24-1499 | Decided | Aug. 13, 2025 | Authored |
| Carew v. Morton | 23-7934 | Decided | Aug. 13, 2025 | Authored |
| DCC Propane LLC v. KMT Enterprises, Inc. | 24-1780 | Decided | Aug. 5, 2025 | Authored |
| Garcia Pinach v. Bondi | 22-6421 | Decided | Aug. 4, 2025 |
Judicial writings
Opinions, concurrences and dissents attributed to this judge by the source record.
| Type | Case | Court | Filed |
|---|---|---|---|
| Opinion | Raymond v. 1199SEIU National Benefit Fund | Second Circuit | July 23, 2026 |
| Opinion | Ziparo v. CSX Transportation | Second Circuit | Nov. 25, 2025 |
| Opinion | Gimpel v. Hain Celestial Group, Inc. | Second Circuit | Sept. 29, 2025 |
| Opinion | Town of Newburgh v. Newburgh EOM LLC | Second Circuit | Sept. 11, 2025 |
| Opinion | United States v. Phillips | Second Circuit | Sept. 3, 2025 |
| Opinion | Carew v. Morton | Second Circuit | Aug. 13, 2025 |
| Opinion | New Jersey v. Bessent; Village of Scarsdale v. IRS | Second Circuit | Aug. 13, 2025 |
| Opinion | DCC Propane LLC v. KMT Enterprises, Inc. | Second Circuit | Aug. 5, 2025 |
| Opinion | United States v. Bardakova | Second Circuit | July 28, 2025 |
| Opinion | Molecular Dynamics, Ltd. v. Spectrum Dynamics Med. Ltd. | Second Circuit | July 2, 2025 |
| Opinion | Linton v. Zorn | Second Circuit | April 24, 2025 |
| Opinion | Peterson v. Bank Markazi | Second Circuit | Nov. 13, 2024 |
| Opinion | New York v. Niagara-Wheatfield Central School District | Second Circuit | Oct. 15, 2024 |
| Opinion | In Re Mark A. Nordlicht | Second Circuit | Aug. 15, 2024 |
| Opinion | United States v. Bradley | Second Circuit | June 18, 2024 |
| Opinion | United States v. Fernandez | Second Circuit | June 11, 2024 |
| Opinion | Roe v. St. John's University | Second Circuit | Jan. 31, 2024 |
| Opinion | Pauwels v. Deloitte LLP | Second Circuit | Oct. 6, 2023 |
| Opinion | United States v. Davis | Second Circuit | Sept. 21, 2023 |
| Opinion | Red Tree Investments, LLC v. PDVSA, Petróleo | Second Circuit | Sept. 20, 2023 |