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Total declarations
Companies
▲ Purchases (13 ops.)
▼ Sales (1 ops.)
Latest filing published 15 Jun 2026 for Aura Biosciences, Inc.. Read the official filing
Filing timeline
BuySaleDavid Michael Johnson
Insider track record
Disclosed buys
13
Disclosed sells
1
T+90 hit rate
100%
T+90 mean return
+8.1%
Across 2 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
David Michael Johnson: trading record in brief
David Michael Johnson, listed as board member, has filed trades across 2 companies (mainly through SEC (Form 4)), most often in Aura Biosciences, Inc. and Zentalis Pharmaceuticals, Inc. The record holds 24 filings, for trades running from 4 June 2021 to 11 June 2026.
Market trades split into 13 purchases (€1.6M) and 1 sale (€278k). Taken together, the purchases exceed the sales by €1.3M. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Besides market trades, the filings include 9 share grants.
The median purchase comes to €94k. On 5 out of 11 purchases, another insider of the same company was buying within the same 30 days. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.
The newest entry dates from 15 June 2026: a share grant, in Aura Biosciences, Inc. The last insider purchase was made public on 20 May 2025, 516 days ago. Filings reach the SEC (Form 4) feed a median of 4 days after the trade. The legal deadline for a Form 4 is two business days after the transaction. 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 Michael Johnson
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations24 total
15,000 sharesCommon StockSEC:0001193125-26-271168:0
57,603 shares0Common StockSEC:0001725160-25-000133:0
13,000 shares0Common StockSEC:0000950170-25-087890:0
20,000 shares@ US$4.906.0% of flowCommon StockSEC:0000950170-25-075412:0
Canonical exit: 14 Aug 2025 (T+90)
10,500 shares0Common StockSEC:0000950170-24-076707:0
48,429 shares0Common StockSEC:0001725160-24-000141:0
17,000 shares@ US$9.87922.1% of flowCommon StockSEC:0001725160-23-000201:0
Canonical exit: 8 Feb 2024 (T+90)
76,000 shares@ US$7.1734.7% of flowCommon StockSEC:0000950170-23-062214:0
Canonical exit: 5 Feb 2024 (T+90)
13,500 shares@ US$8.27137.3% of flowCommon StockSEC:0000950170-23-052244:0
Canonical exit: 1 Jan 2024 (T+90)
19,059 shares0Common StockSEC:0001725160-23-000146:0
300 shares@ US$10.000.2% of flowCommon StockSEC:0000899243-23-001324:0
Canonical exit: 5 Apr 2023 (T+90)
2,000 shares@ US$9.751.3% of flowCommon StockSEC:0000899243-22-039594:0
Canonical exit: 28 Mar 2023 (T+90)
5,000 shares@ US$12.374.0% of flowCommon StockSEC:0000899243-22-038695:0
Canonical exit: 1 Mar 2023 (T+90)
3,000 shares@ US$15.040.0050% mcap100.0% of flowCommon StockSEC:0000899243-22-022456:0
Canonical exit: 8 Sept 2022 (T+90)
10,000 shares@ US$15.049.7% of flowCommon StockSEC:0000899243-22-022456:2
Canonical exit: 8 Sept 2022 (T+90)
7,000 shares@ US$13.996.4% of flowCommon StockSEC:0000899243-22-022456:3
Canonical exit: 11 Sept 2022 (T+90)
20,000 shares@ US$13.9918.3% of flowCommon StockSEC:0000899243-22-022456:5
Canonical exit: 11 Sept 2022 (T+90)
3,000 shares@ US$15.042.9% of flowCommon StockSEC:0000899243-22-022456:1
Canonical exit: 8 Sept 2022 (T+90)
7,000 shares@ US$13.996.4% of flowCommon StockSEC:0000899243-22-022456:4
Canonical exit: 11 Sept 2022 (T+90)
24,871 shares0Common StockSEC:0001725160-22-000121:0
7,500 shares0Common StockSEC:0001725160-21-000242:0
139,672 shares0Common StockSEC:0000899243-21-042361:0
4,892 shares@ US$65.950163.8% of flowCommon StockSEC:0001725160-21-000197:0
5,000 shares0Common StockSEC:0001725160-21-000142:0
24 of 24 declarations
