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John J. Nicols

Executive
Chairman & CEO
Insider activity · 24 months1 buy0 salesCumulative net flow
Total declarations
135
Companies
3
▲ Purchases (8 ops.)
€510k
▼ Sales (57 ops.)
€21.3M

Latest filing published 06 Oct 2025 for Scientific Industries INC, €13k.

Filing timeline

BuySale
John J. Nicols

Insider track record

Disclosed buys
8
Disclosed sells
57
Signal history

Closed purchases

Market purchases
8
Positive at T+90
43%
Median T+90
-6.9%

Based on 7 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 15 May 2025 · 542 days ago · €13k
    -4.9%
    Entry US$0.80 · Close at T+365 US$0.76
  • Filed 31 Jul 2024 · 830 days ago · €28k
    -69.5%
    Entry US$1.70 · Close at T+365 US$0.52
  • Filed 22 Aug 2019 · 2635 days ago · €120k
    +2.5%
    Entry US$12.84 · Close at T+365 US$13.16
  • Filed 11 Mar 2013 · 4990 days ago · €50k
    -24.8%
    Entry US$2.54 · Close at T+365 US$1.91
  • Filed 07 Mar 2013 · 4994 days ago · €45k
    -13.9%
    Entry US$2.31 · Close at T+365 US$1.99

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.

John J. Nicols: trading record in brief

John J. Nicols (chief executive) discloses dealings in 3 companies, chiefly Codexis, Inc., Albemarle Corp and Scientific Industries Inc. The record holds 135 filings, for trades running from 16 February 2006 to 20 August 2025.

On the open market, the record shows 8 purchases worth €510k and 57 sales worth €21.3M. Netting one side against the other leaves €20.8M of net selling. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Outside the open market, there are 25 share grants and 43 option exercises. In 2025 alone, the filings show 1 purchase and no sales.

A typical purchase (the median) is worth €49k. Clusters matter here: 2 out of 3 purchases overlapped with buying by a colleague within 30 days. Purchases made close together by different insiders form what is called a cluster. Ninety days after publication, 7 purchases show a median change of -6.9%, with the price up in 43% of them. This is a record of the past, not a forecast.

The record was last updated on 6 October 2025 with a share grant (€13k) in Scientific Industries Inc. The clock since the last published purchase (15 May 2025) now reads 542 days. The median gap between a trade and its publication by SEC (Form 4) is 2 days. The legal deadline for a Form 4 is two business days after the transaction. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.

Companies and markets linked to John J. Nicols

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

Declarations132 total
  • ◆
    DirectorExecutivesScientific Industries Inc
    15,000 USD15SEC
    15,000 shares@ US$1.0023.9% of flowCommon StockSEC:0001238884-25-000005:0
  • ▲
    DirectorExecutivesScientific Industries Inc
    15,000 USD25SEC
    15,000 shares@ US$1.0024.5% of flowCommon StockSEC:0001238884-25-000001:0
    Canonical exit: 17 Jul 2025 (T+90)
  • ▲
    DirectorExecutivesScientific Industries Inc
    30,000 USD34SEC
    15,000 shares@ US$2.0051.6% of flowCommon StockSEC:0001238884-24-000003:0
    Canonical exit: 12 Mar 2024 (T+90)
  • ▼
    DirectorExecutivesCodexis, Inc.
    151,427 USD11SEC
    35,714 shares@ US$4.240.8% of flowCommon StockSEC:0001610717-23-000016:1
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,357 USD11SEC
    35,714 shares@ US$1.970.4% of flowCommon StockSEC:0001610717-23-000016:2
  • ▼
    DirectorExecutivesCodexis, Inc.
    147,856 USD11SEC
    35,714 shares@ US$4.140.8% of flowCommon StockSEC:0001610717-23-000016:3
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,357 USD11SEC
    35,714 shares@ US$1.974.0% of flowCommon StockSEC:0001610717-23-000016:0
  • ▼
    DirectorExecutivesCodexis, Inc.
    146,070 USD29SEC
    35,714 shares@ US$4.090.8% of flowCommon StockSEC:0001567619-23-005259:1
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,357 USD11SEC
    35,714 shares@ US$1.970.4% of flowCommon StockSEC:0001567619-23-005259:2
  • ▼
    DirectorExecutivesCodexis, Inc.
    146,785 USD29SEC
    35,714 shares@ US$4.110.8% of flowCommon StockSEC:0001567619-23-005259:3
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,357 USD11SEC
    35,714 shares@ US$1.974.1% of flowCommon StockSEC:0001567619-23-005259:0
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,357 USD11SEC
    35,714 shares@ US$1.970.4% of flowCommon StockSEC:0001567619-23-003845:1
  • ▼
    DirectorExecutivesCodexis, Inc.
    172,499 USD11SEC
    35,714 shares@ US$4.831.0% of flowCommon StockSEC:0001567619-23-003845:2
  • ▼
    DirectorExecutivesCodexis, Inc.
    213,220 USD12SEC
    39,785 shares@ US$5.359312.5% of flowCommon StockSEC:0001567619-23-003845:0
  • ▼
    DirectorExecutivesCodexis, Inc.
    261,642 USD13SEC
    39,785 shares@ US$6.576415.0% of flowCommon StockSEC:0001567619-23-001271:0
  • ▼
    DirectorExecutivesCodexis, Inc.
    229,295 USD11SEC
    35,714 shares@ US$6.42031.3% of flowCommon StockSEC:0001567619-23-001271:2
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,357 USD11SEC
    35,714 shares@ US$1.970.4% of flowCommon StockSEC:0001567619-23-001271:1
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,357 USD11SEC
    35,714 shares@ US$1.970.4% of flowCommon StockSEC:0001567619-22-021536:1
  • ▼
    DirectorExecutivesCodexis, Inc.
    202,856 USD11SEC
    35,714 shares@ US$5.681.2% of flowCommon StockSEC:0001567619-22-021536:2
  • ▼
    DirectorExecutivesCodexis, Inc.
    224,996 USD12SEC
    39,785 shares@ US$5.655313.3% of flowCommon StockSEC:0001567619-22-021536:0
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,357 USD11SEC
    35,714 shares@ US$1.970.4% of flowCommon StockSEC:0001567619-22-020552:1
  • ▼
    DirectorExecutivesCodexis, Inc.
    227,141 USD11SEC
    35,714 shares@ US$6.361.3% of flowCommon StockSEC:0001567619-22-020552:2
  • ▼
    DirectorExecutivesCodexis, Inc.
    270,238 USD13SEC
    39,786 shares@ US$6.792316.3% of flowCommon StockSEC:0001567619-22-020552:0
  • ◇
    DirectorExecutivesCodexis, Inc.
    70,361 USD11SEC
    35,716 shares@ US$1.970.4% of flowCommon StockSEC:0001567619-22-018951:1
  • ▼
    DirectorExecutivesCodexis, Inc.
    197,509 USD11SEC
    35,716 shares@ US$5.531.2% of flowCommon StockSEC:0001567619-22-018951:2

25 of 132 declarations