InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (2 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
2
T+90 hit rate
0%
T+90 mean return
-37.6%
Across 5 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the complete record of transactions filed by Alexander Karen, Directrice Comptable. Insider active across 2 companies, notably Bakkt Holdings, Inc.. Cumulatively, 28 filings have been recorded. Breakdown: 0 buy · 2 sells. Total volume traded: €15k. Activity tracked since 21 December 2021. The latest transaction was disclosed on 15 May 2026 (Levée d'options). Regulator: SEC (Form 4). The full history is free.
Declarations28 total
1,907 sharesClass A Common StockSEC:0001628280-26-046103:0
335 shares@ US$10.000.0008% mcap100.0% of flowClass A Common StockSEC:0001870910-26-000006:0
121 shares@ US$21.611.5% of flowClass A Common StockSEC:0001870910-25-000013:0
4,174 shares@ US$8.9321.3% of flowClass A Common StockSEC:0001870910-25-000006:0
34,211 shares0Class A Common StockSEC:0001870910-25-000005:0
209 shares@ US$14.841.9% of flowClass A Common StockSEC:0001870910-25-000004:0
3,495 shares0Class A Common StockSEC:0001870910-25-000003:0
173 shares@ US$17.561.9% of flowClass A Common StockSEC:0001870910-25-000001:0
362 shares@ US$27.566.2% of flowClass A Common StockSEC:0001870910-24-000007:0
23,541 shares0Class A Common StockSEC:0001870910-24-000006:0
14,645 shares0Class A Common StockSEC:0001870910-24-000005:0
43,942 shares0Class A Common StockSEC:0001870910-24-000004:0
29,577 shares@ US$0.95517.0% of flowClass A Common StockSEC:0001870910-24-000003:0
5,025 shares@ US$1.424.3% of flowClass A Common StockSEC:0001870910-24-000002:0
8,923 shares@ US$1.849.6% of flowClass A Common StockSEC:0001870910-24-000001:0
11,897 shares@ US$1.319.4% of flowClass A Common StockSEC:0001870910-23-000008:0
9,012 shares@ US$1.317.1% of flowClass A Common StockSEC:0001870910-23-000008:1
24,999 shares0Class A Common StockSEC:0001870910-23-000007:0
140,992 shares0Class A Common StockSEC:0001870910-23-000006:0
50,000 shares0Class A Common StockSEC:0001870910-23-000006:1
5,080 shares@ US$1.645.1% of flowClass A Common StockSEC:0001870910-23-000004:0
5,080 shares@ US$1.645.1% of flowClass A Common StockSEC:0001870910-23-000003:0
11,487 shares@ US$1.359.5% of flowClass A Common StockSEC:0001870910-23-000002:0
100,000 shares0Class A Common StockSEC:0001209191-22-049574:0
36,455 shares0Class A Common StockSEC:0001209191-22-011015
25 of 28 declarations
About Alexander Karen
Karen Alexander serves as Chief Accounting Officer at Bakkt Holdings, Inc. She oversees all accounting functions of the company, ensuring the accuracy and compliance of financial reporting. Her expertise in accounting and finance is essential for informed decision-making and managing the company's financial resources.
