SUBJECT-4183.dossier · person · status: active
JT
subject of file

John K. Tien

Deputy Secretary of Homeland Security
Tracked because Deputy Secretary of Homeland Security · 3 documented connections
Facts on record2
Connections mapped3
Sources cited20
Evidence: 2S
Network web → Timeline → Compare with… → Position Drift → Coverage tone → View on Graph → Export CSV JSON Dossier ← Entity Directory
Stated vs Revealed
No documented contradictions on file.
PATTERN person → [regulatory filing] → government agency → [overs... 162× PATTERN person → [regulatory filing] → government agency → [emplo... 162× PATTERN person → [regulatory filing] → government agency → [regul... 162× PATTERN person → [regulatory filing] → government agency → [Filer... 162× PATTERN person → [regulatory filing] → government agency → [filed... 162×
TIMELINE Role Overlap Visualizer →
Connection Map
Key Connections
← UK Home Office institution
agreement signatory
Deputy Secretary John K. Tien signed the New Cooperative Agreement with UK Home Office Permanent Secretary Matthew Rycroft on March 31, 2022.
→ Securities and Exchange Commission government agency
regulatory_filing
John K. Tien filed a filing with the SEC on 2024-04-02.
→ Matthew Rycroft person
bilateral_cooperation
Signed New Cooperative Agreement between DHS and UK Home Office in March 2022
Facts (2)
Data Freshness
Ageing Last update: 106d ago · Avg age: 493d
Confidence Tiers: Primary Source — cross-referenced government/corporate filings Pending Review — sourced but not independently verified AI Inference — analytical hypothesis from cross-referencing
✓ Verified Findings (1)
Independently re-checked: a second model read the source artifact and confirmed it supports the extracted claim.
✓ verified Partially Corroborated John K. Tien filed filing with the SEC on 2024-04-02. Accession number: N/A.
Raw Filing Records (1) — unsourced metadata
Pending Review Search scope note: No fec donations found for "John K. Tien" in automated database search as of 2026-04-13. This reflects search coverage limits, not confirmed absence from public record.
Added: 13 Apr 2026 UNVERIFIED Research: John K. Tien — FEC donations (no results)
All Connections (3)
→ Matthew Rycroft person
bilateral_cooperation confirmed
Signed New Cooperative Agreement between DHS and UK Home Office in March 2022
→ Securities and Exchange Commission government agency
regulatory_filing primary since 2024
John K. Tien filed a filing with the SEC on 2024-04-02.
← UK Home Office institution
agreement signatory primary since 2022
Deputy Secretary John K. Tien signed the New Cooperative Agreement with UK Home Office Permanent Secretary Matthew Rycroft on March 31, 2022.
Sources (20)
2026-05-09 UNVERIFIED SEARCH_ERROR: John K. Tien not found in fec claim_flag Processed 📜 Receipt
2026-04-02 ↗ SEC EDGAR: filing — John K. Tien (2026-04-02) sec_filing Processed 📜 Receipt
2025-01-03 ↗ SEC EDGAR: filing — John K. Tien (2025-01-03) sec_filing Processed 📜 Receipt
2025-04-02 ↗ SEC EDGAR: filing — John K. Tien (2025-04-02) sec_filing Processed 📜 Receipt
2026 UNVERIFIED Research: John K. Tien — SEC filings (no results) sec_filing Processed 📜 Receipt
2025-01-03 ↗ SEC EDGAR: 4 — Tien John K Jr (2025-01-03) sec_filing Processed 📜 Receipt
2025-04-02 ↗ SEC EDGAR: 4 — Tien John K Jr (2025-04-02) sec_filing Processed 📜 Receipt
2024-10-03 ↗ SEC EDGAR: filing — John K. Tien (2024-10-03) sec_filing Processed 📜 Receipt
2024-07-02 ↗ SEC EDGAR: filing — John K. Tien (2024-07-02) sec_filing Processed 📜 Receipt
2024-04-02 ↗ SEC EDGAR: filing — John K. Tien (2024-04-02) sec_filing Processed 📜 Receipt
2026-04-02 ↗ SEC EDGAR: 4 — Tien John K Jr (2026-04-02) sec_filing Processed 📜 Receipt
2024-07-02 ↗ SEC EDGAR: 4 — Tien John K Jr (2024-07-02) sec_filing Processed 📜 Receipt
2024-04-02 ↗ SEC EDGAR: 4 — Tien John K Jr (2024-04-02) sec_filing Processed 📜 Receipt
2024-10-03 ↗ SEC EDGAR: 4 — Tien John K Jr (2024-10-03) sec_filing Processed 📜 Receipt
2026-07-02 ↗ SEC EDGAR: 4 — Tien John K Jr (2026-07-02) sec_filing Processed 📜 Receipt
2026 UNVERIFIED Research: John K. Tien — Parliamentary records (no results) parliamentary_record Processed 📜 Receipt
2026 UNVERIFIED Research: John K. Tien — Court records (no results) court_document Processed 📜 Receipt
2026 UNVERIFIED Research: John K. Tien — Lobbying disclosures (no results) government_disclosure Processed 📜 Receipt
2026 UNVERIFIED Research: John K. Tien — FEC donations (no results) fec_record Processed 📜 Receipt
2024-04-02 ↗ SEC EDGAR: filing — John K. Tien (2024-04-02) web_search Processed 📜 Receipt