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Justin A. Renz

Chief Financial Officer
Ardelyx, Inc.Karyopharm Therapeutics Inc.EPIRUS Biopharmaceuticals, Inc.
Insider activity · 24 months0 buys3 salesCumulative net flow
Total declarations
39
Companies
3
▲ Purchases (2 ops.)
€139k
▼ Sales (27 ops.)
€1.7M

Latest filing published 25 Aug 2025 for Ardelyx, INC., €36k.

Filing timeline

BuySale
Justin A. Renz

Insider track record

Disclosed buys
2
Disclosed sells
27
Signal history

Closed purchases

Market purchases
2
Positive at T+90
50%
Median T+90
+20.9%

Based on 2 purchases whose 90-day window has closed (published at least 91 days ago), the same population our ranking model reads.

Purchases by company

Since each purchase

  • Filed 01 Sept 2022 · 1530 days ago · €1,849
    +321.1%
    Entry US$1.09 · Close at T+365 US$4.59
  • Filed 06 Apr 2015 · 4235 days ago · €137k
    -71.5%
    Entry US$478.65 · Close at T+365 US$136.20

Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.

Justin A. Renz: trading record in brief

This profile gathers the share dealings of Justin A. Renz across 3 companies, led by Ardelyx, Inc., Karyopharm Therapeutics Inc. and EPIRUS Biopharmaceuticals, Inc. We count 39 filings; the first trade dates from 10 February 2014 and the latest from 21 August 2025.

In open-market terms, that means 2 purchases worth €139k on one side and 27 sales worth €1.7M on the other. Taken together, the sales exceed the purchases by €1.5M. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. The rest of the record consists of 8 share grants and 2 option exercises. So far in 2025, the count stands at no purchases and 3 sales.

On 25 August 2025 came the latest disclosure, an open-market sale for €36k in Ardelyx, Inc. The latest purchase dates back some time: it was published 1,530 days ago, on 1 September 2022. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. US insiders must file a Form 4 within two business days of a trade. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.

Companies and markets linked to Justin A. Renz

Open company profiles for insider transactions, fundamentals and analyst consensus when available.

Declarations39 total
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    41,741 USD38SEC
    7,037 shares@ US$5.93179.4% of flowCommon StockSEC:0001628280-25-041137:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    29,460 USD38SEC
    7,218 shares@ US$4.08146.8% of flowCommon StockSEC:0001628280-25-027431:0
  • ◆
    Chief Financial OfficerExecutivesArdelyx, Inc.
    0SEC
    136,680 shares0Common StockSEC:0001628280-25-008798:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    29,077 USD38SEC
    5,171 shares@ US$5.6237.3% of flowCommon StockSEC:0001628280-25-007232:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    25,219 USD38SEC
    5,260 shares@ US$4.79456.2% of flowCommon StockSEC:0001628280-24-049053:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    30,995 USD38SEC
    5,289 shares@ US$5.86037.3% of flowCommon StockSEC:0001628280-24-038291:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    40,359 USD38SEC
    5,167 shares@ US$7.8119.7% of flowCommon StockSEC:0001628280-24-024944:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    46,714 USD38SEC
    5,341 shares@ US$8.746311.3% of flowCommon StockSEC:0001610717-24-000087:0
  • ◆
    Chief Financial OfficerExecutivesArdelyx, Inc.
    0SEC
    127,750 shares0Common StockSEC:0001628280-24-001684:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    1M USD42SEC
    225,000 shares@ US$6.356176.1% of flowCommon StockSEC:0001628280-23-042828:1
  • ◇
    Chief Financial OfficerExecutivesArdelyx, Inc.
    74,250 USD21SEC
    75,000 shares@ US$0.9917.6% of flowCommon StockSEC:0001628280-23-042828:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    12,533 USD37SEC
    2,873 shares@ US$4.36223.0% of flowCommon StockSEC:0001628280-23-039902:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    10,243 USD39SEC
    2,884 shares@ US$3.55182.4% of flowCommon StockSEC:0001628280-23-030404:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    10,496 USD39SEC
    2,873 shares@ US$3.65322.5% of flowCommon StockSEC:0001104659-23-064390:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    10,320 USD39SEC
    3,439 shares@ US$3.0012.5% of flowCommon StockSEC:0001567619-23-003769:0
  • ◆
    Chief Financial OfficerExecutivesArdelyx, Inc.
    0SEC
    78,000 shares0Common StockSEC:0001567619-23-000645:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    118 USD39SEC
    61 shares@ US$1.94150.0% of flowCommon StockSEC:0001567619-22-020846:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    2,813 USD39SEC
    1,443 shares@ US$1.94930.2% of flowCommon StockSEC:0001567619-22-020846:1
  • ▲
    Chief Financial OfficerExecutivesArdelyx, Inc.
    1,856 USD37SEC
    3,000 shares@ US$0.61880.5% of flowCommon StockSEC:0001567619-22-016958:0
    Canonical exit: 29 Nov 2022 (T+90)
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    6 USD37SEC
    6 shares@ US$0.98020.0% of flowCommon StockSEC:0001567619-22-016641:1
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    12 USD37SEC
    12 shares@ US$0.98010.0% of flowCommon StockSEC:0001567619-22-016641:2
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    1,456 USD37SEC
    1,480 shares@ US$0.98370.4% of flowCommon StockSEC:0001567619-22-016641:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    965 USD37SEC
    1,518 shares@ US$0.63560.1% of flowCommon StockSEC:0001567619-22-012557:1
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    46,731 USD38SEC
    71,794 shares@ US$0.650911.4% of flowCommon StockSEC:0001567619-22-012557:0
  • ▼
    Chief Financial OfficerExecutivesArdelyx, Inc.
    1,026 USD37SEC
    1,528 shares@ US$0.67140.3% of flowCommon StockSEC:0001567619-22-011524:0

25 of 39 declarations