InsidersTradesSigma
Total declarations
Companies
▲ Purchases (6 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
6
Disclosed sells
0
T+90 hit rate
100%
T+90 mean return
+267.5%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the full record of transactions filed by Tananbaum James B., Director. Officer active across 4 companies, notably Quantum-Si Inc. Aggregated, 16 disclosures have been recorded. Breakdown: 6 buys · 0 sell. Total volume traded: €10.3m. History available since 22 December 2021. The latest transaction was disclosed on 21 November 2025 (Acquisition). Regulator: SEC (Form 4). All data is openly available.
Declarations16 total
72,212 shares@ US$7.3872.1% of flowCommon StockSEC:0001104659-25-115950:0
Ideal exit: 18 Aug 2026 (T+270)
25,000 shares@ US$4.6216.0% of flowCommon StockSEC:0001104659-25-045222:0
Ideal exit: 27 Jan 2026 (T+270)
20,000 shares@ US$4.3411.9% of flowCommon StockSEC:0001104659-25-045222:1
Ideal exit: 31 Jan 2026 (T+270)
1,944,577 shares0Common StockSEC:0001104659-24-077875:0
9,671,643 sharesCommon StockSEC:0001415889-24-010434:0
16,813,146 sharesCommon StockSEC:0001140361-23-042108:0
1,550,956 shares@ US$2.80100.0% of flowCommon StockSEC:0001209191-23-028537:0
Ideal exit: 2 Feb 2024 (T+270)
1,100,000 sharesCommon StockSEC:0001209191-23-011566:0
4,941,250 shares0Common StockSEC:0000899243-21-050105:0
4,941,250 shares0Common StockSEC:0000899243-21-050105
1,000,000 shares@ US$10.0037.7% of flowCommon StockSEC:0000899243-21-049928
1,000,000 shares@ US$10.0037.7% of flowCommon StockSEC:0000899243-21-049928:0
325,000 shares@ US$10.0012.3% of flowCommon StockSEC:0001213900-21-067341
Ideal exit: 18 Sept 2022 (T+270)
325,000 shares@ US$10.0012.3% of flowCommon StockSEC:0001213900-21-067341:0
Ideal exit: 18 Sept 2022 (T+270)
4,463,619 sharesClass A Common StockSEC:0001104659-21-080931:0
4,463,619 sharesClass A Common StockSEC:0001104659-21-080931
16 of 16 declarations
About Tananbaum James B.
James B. Tananbaum is a Director at Quantum-Si Inc and PARDES BIOSCIENCES, INC. He plays a key role in governance and strategy for the companies. Tananbaum brings valuable experience to the board of directors, contributing to informed decision-making.
