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Total declarations
Companies
▲ Purchases (1 ops.)
▼ Sales (14 ops.)
Latest filing published 19 Aug 2026 for Seer, Inc., €13k. Read the official filing
Filing timeline
BuySaleDavid R. Horn
Insider track record
Disclosed buys
1
Disclosed sells
14
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
David R. Horn: trading record in brief
David R. Horn is a declared insider at 2 companies (finance chief); the most frequent names are Seer, Inc. and Edap TMS SA. The record holds 26 filings, for trades running from 2 June 2021 to 18 August 2026.
The open-market side counts 1 purchase for €41k alongside 14 sales for €807k. Netting one side against the other leaves €765k of net selling. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Outside the open market, there are 5 share grants and 6 option exercises. So far in 2026, the count stands at 1 purchase and 2 sales.
The record was last updated on 19 August 2026 with an open-market sale (€13k) in Seer, Inc. The clock since the last published purchase (17 August 2026) now reads 62 days. The median gap between a trade and its publication by SEC (Form 4) is 2 days. US insiders must file a Form 4 within two business days of a trade. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. 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 David R. Horn
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations26 total
7,309 shares@ US$2.0262Class A Common StockSEC:0001834217-26-000008:0
10,000 shares@ US$4.750.029% mcap100.0% of flowCommon StockSEC:0001829126-26-008927:0
Canonical exit: 12 Nov 2026 (T+90)
7,743 shares@ US$1.99491.3% of flowClass A Common StockSEC:0001834217-26-000004:0
79,000 shares0Class A Common StockSEC:0001834217-26-000002:0
6,797 shares@ US$1.97141.2% of flowClass A Common StockSEC:0001834217-25-000005:0
6,827 shares@ US$2.04411.2% of flowClass A Common StockSEC:0001415889-25-022596:0
6,760 shares@ US$2.07510.8% of flowClass A Common StockSEC:0001415889-25-014130:0
26,572 shares@ US$2.303.5% of flowClass A Common StockSEC:0001415889-25-004853:0
3,550 shares@ US$2.23650.5% of flowClass A Common StockSEC:0001415889-25-003181:0
165,038 shares0Class A Common StockSEC:0001415889-24-005093:0
3,608 shares@ US$1.6670.3% of flowClass A Common StockSEC:0001209191-24-002977:0
5,951 shares@ US$4.13471.4% of flowClass A Common StockSEC:0001209191-23-011916:0
70,000 shares0Class A Common StockSEC:0001209191-23-010925:0
3,124 shares@ US$5.39721.0% of flowClass A Common StockSEC:0001209191-23-007931:0
2,602 shares@ US$5.11930.7% of flowClass A Common StockSEC:0001209191-23-004098:0
18,884 shares@ US$6.57017.1% of flowClass A Common StockSEC:0001209191-22-060433:0
62,000 shares0Class A Common StockSEC:0001209191-22-008617:0
2,944 shares@ US$17.404.6% of flowClass A Common StockSEC:0001209191-22-007320:0
2,308 shares@ US$22.814.7% of flowClass A Common StockSEC:0001209191-22-001255:0
26,273 shares@ US$20.255947.6% of flowClass A Common StockSEC:0001209191-21-068627:0
10,000 shares@ US$2.702.4% of flowClass A Common StockSEC:0001209191-21-062830:0
10,000 shares@ US$2.702.4% of flowClass A Common StockSEC:0001209191-21-059374:0
10,000 shares@ US$2.702.3% of flowClass A Common StockSEC:0001209191-21-054521:0
10,000 shares@ US$2.702.3% of flowClass A Common StockSEC:0001209191-21-049672:0
10,000 shares@ US$2.702.3% of flowClass A Common StockSEC:0001209191-21-045423:0
25 of 26 declarations
