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Company
▲ Purchases (0 ops.)
▼ Sales (14 ops.)
Latest filing published 08 Oct 2026 for 908 Devices Inc., €58k. Read the official filing
Filing timeline
BuySaleJoseph H. Griffith IV
Insider track record
Disclosed buys
0
Disclosed sells
14
Signal history
Joseph H. Griffith IV: trading record in brief
Joseph H. Griffith IV is a declared insider of 908 Devices Inc. (finance chief), with filings sourced from SEC (Form 4). In total, 31 filings cover trades dated from 16 June 2021 to 6 October 2026.
The open-market record consists of 14 sales worth €1.2M, with no purchase. Outside the open market, there are 17 option exercises. So far in 2026, the count stands at no purchases and 4 sales.
The latest filing, published on 8 October 2026, reports an open-market sale of €58k in 908 Devices Inc. The median gap between a trade and its publication by SEC (Form 4) is 2 days. For comparison, the SEC allows two business days to file a Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Companies and markets linked to Joseph H. Griffith IV
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations31 total
5,000 shares@ US$13.03Common StockSEC:0001431531-26-000009:0
11,459 shares@ US$10.950.026% mcap8.7% of flowCommon StockSEC:0001431531-26-000007:0
6,940 shares@ US$9.030.015% mcap4.3% of flowCommon StockSEC:0001431531-26-000005:0
23,175 shares@ US$6.189.7% of flowCommon StockSEC:0001431531-26-000002:4
5,102 sharesCommon StockSEC:0001431531-26-000002:0
10,306 sharesCommon StockSEC:0001431531-26-000002:1
11,260 sharesCommon StockSEC:0001431531-26-000002:2
43,473 sharesCommon StockSEC:0001431531-26-000002:3
708 shares@ US$9.03640.4% of flowCommon StockSEC:0001836524-25-000006:0
5,000 shares@ US$7.06772.4% of flowCommon StockSEC:0001836524-25-000005:0
6,940 shares@ US$7.083.5% of flowCommon StockSEC:0001562180-25-004574:0
1,960 shares@ US$2.3380.4% of flowCommon StockSEC:0001562180-25-000894:3
3,955 shares@ US$2.3350.7% of flowCommon StockSEC:0001562180-25-000894:4
4,321 shares@ US$2.3530.8% of flowCommon StockSEC:0001562180-25-000894:5
5,102 sharesCommon StockSEC:0001562180-25-000894:0
10,306 sharesCommon StockSEC:0001562180-25-000894:1
11,261 sharesCommon StockSEC:0001562180-25-000894:2
8,437 shares@ US$1.581.0% of flowCommon Stock, par value $0.001SEC:0001562180-24-003011:0
5,103 sharesCommon StockSEC:0001562180-24-001018:0
6,000 shares@ US$12.085.3% of flowCommon StockSEC:0001562180-24-000027:0
5,580 shares@ US$9.083.7% of flowCommon StockSEC:0001562180-23-008536:0
5,000 shares@ US$1.580.6% of flowCommon Stock, par value $0.001SEC:0001562180-23-003085:0
5,102 sharesCommon StockSEC:0001562180-23-000967:0
600 shares@ US$0.960.0% of flowCommon Stock, par value $0.001SEC:0001562180-22-005922:0
13,129 shares@ US$0.961.0% of flowCommon Stock, par value $0.001SEC:0001562180-22-005372:0
25 of 31 declarations
