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Nierenberg Investment Management Company, LLC

Insider · 10% owner · RSVB

Nierenberg Investment Management Company, LLC files insider transactions with the SEC as a 10% owner of Riverview Bancorp (RSVB). We hold 3 disclosed purchases and sales filed since 10 July 2006, 3 of them in the last 90 days.

  • Files forRSVB
  • Disclosed buys and sells3 in all, 3 in the last 90 days
  • Last disclosure24 July 2026

Positions held

8 posts we hold — a term names its own dates; a run of filings only says when they filed
  • Filed 22 July 2026 — 24 July 202610% owner · Riverview Bancorp (RSVB)3 Form 4 lines · source: SEC Form 4
  • Filed 5 August 2024 — 7 August 202410% owner · Potbelly (PBPB)9 Form 4 lines · source: SEC Form 4
  • Filed 1 November 2007 — 27 May 2014Director · Electro Scientific Industries (ESIO)17 Form 4 lines · source: SEC Form 4
  • Filed 11 January 2007 — 27 February 201410% owner · Radisys (RSYS)27 Form 4 lines · source: SEC Form 4
  • Filed 7 May 2008 — 19 April 201310% owner · Asset Acceptance Capital (AACC)51 Form 4 lines · source: SEC Form 4
  • Filed 13 November 2007 — 1 August 200910% owner · Medcath (MDTH)15 Form 4 lines · source: SEC Form 4
  • Filed 7 May 2008 — 23 July 200810% owner · Move (MOVE)7 Form 4 lines · source: SEC Form 4
  • Filed 30 June 2006 — 25 September 200710% owner · Natus Medical (BABY)9 Form 4 lines · source: SEC Form 4

Everything they disclosed

120 entries, newest first — one per disclosure report, one per Form 4 line

Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.