Harald B. Malmgren was an American economist and policy adviser whose career included service under Presidents John F. Kennedy, Lyndon Johnson, Richard Nixon, and Gerald Ford. He worked on trade and economic policy, became a senior international consultant, and maintained relationships across government, finance, and diplomacy. He died in 2025.

Malmgren’s documented career placed him close to major twentieth-century economic and security decisions. Trained as an economist, he advised presidents and senior officials on trade, served in government during the Kennedy and Johnson years, and later counseled corporations and policymakers on international risk. His network extended across Washington and allied capitals for decades. That background explains why late-life recollections drew attention: they came from a veteran policy insider, even when the extraordinary portions could not be independently reconstructed.

Near the end of his life, Malmgren gave interviews and private accounts that placed him inside episodes of UAP history. He described being briefed on UFO matters, associated unusual objects with the 1962 Starfish Prime nuclear test, and said he had handled a piece of anomalous material. These statements came from Malmgren himself and from people reporting conversations with him; publicly available documentation has not established the claimed material’s origin or the full official context of the briefings.

Malmgren’s late-life UAP testimony drew attention because it followed an unusually well-documented career advising presidents and international policymakers. His access made the statements notable, while the anomalous material and briefings he described remain attributed to his recollection. The contrast between his established government service and those extraordinary accounts placed him in discussions of nuclear facilities and UAP and whistleblower testimony.