Insiders Trades
Total declarations
Companies
▲ Purchases (2 ops.)
▼ Sales (1 ops.)
Latest filing published 18 Aug 2026 for Tandem Diabetes Care INC. Read the official filing
Filing timeline
BuySaleJohn F. Sheridan
Insider track record
Disclosed buys
2
Disclosed sells
1
T+90 hit rate
0%
T+90 mean return
-32.9%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
John F. Sheridan: trading record in brief
This profile gathers the share dealings of John F. Sheridan across 2 companies, led by Tandem Diabetes Care Inc and Acutus Medical, Inc. Over a trading history stretching from 4 January 2016 to 15 August 2026, the count stands at 42 filings.
Market trades split into 2 purchases (€253k) and 1 sale. The totals exclude 1 filing filed without an amount. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Besides market trades, the filings include 9 share grants and 30 option exercises.
The latest filing, published on 18 August 2026, reports an option exercise in Tandem Diabetes Care Inc. The clock since the last published purchase (11 August 2025) now reads 433 days. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. For comparison, the SEC allows two business days to file a Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to John F. Sheridan
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations42 total
5,982 shares0Common StockSEC:0001438133-26-000131:0
3,044 shares@ US$22.72Common StockSEC:0001438133-26-000131:1
9,934 shares0Common StockSEC:0001438133-26-000131:2
5,055 shares@ US$22.72Common StockSEC:0001438133-26-000131:3
5,471 shares0Common StockSEC:0001438133-26-000014:0
5,472 shares0Common StockSEC:0001438133-25-000213:0
5,471 shares0Common StockSEC:0001628280-25-040844:0
10,000 shares@ US$10.231827.1% of flowCommon StockSEC:0001438133-25-000165:0
Canonical exit: 9 Nov 2025 (T+90)
1,359 shares@ US$15.647.5% of flowCommon StockSEC:0001438133-25-000085:0
6,732 shares0Common StockSEC:0001438133-25-000037:0
793 shares0Common StockSEC:0001438133-25-000017:0
792 shares0Common StockSEC:0001438133-24-000210:0
793 shares0Common StockSEC:0001438133-24-000190:0
820 shares0Common StockSEC:0001438133-24-000141:0
978 shares@ US$15.645.5% of flowCommon StockSEC:0001438133-24-000096:0
819 shares0Common StockSEC:0001438133-24-000037:0
793 shares0Common StockSEC:0001438133-24-000011:0
820 shares0Common StockSEC:0001438133-23-000248:0
98 shares@ US$15.470.6% of flowCommon StockSEC:0001438133-23-000232:0
820 shares0Common StockSEC:0001438133-23-000188:0
792 shares0Common StockSEC:0001438133-23-000168:0
8,400 shares0FORM 4SEC:0001628280-23-022329:0
820 shares0Common StockSEC:0001438133-23-000123:0
560 shares@ US$27.325.6% of flowCommon StockSEC:0001438133-23-000088:0
819 shares0Common StockSEC:0001438133-23-000046:0
25 of 42 declarations
