InsiderTrades

Konigsberg Brandon

SEC CIK 1894715 · EDGAR

Buying vs selling by month open-market trades, last 58 months, all 2 companies
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
REFIChicago Atlantic Real Estate Finance, Inc.Dir 33.9K $102.3K — 72021-12-082026-04-20
ZSTKZeroStack Corp.Dir 100.0K — — 12023-03-172023-03-17

Most active insiders at REFI, 12 months

#InsiderTitleBoughtSold
1 Mazarakis JohnExecutive COB, Dir $962.0K—
2 Cappell AnthonyCo-CEO, Dir $468.2K—
3 Papastavrou Jason DDir $227.8K—
4 Sack PeterCo-CEO, Dir $153.5K—
5 Konigsberg BrandonDir $86.3K—
6 Kite DavidPres, COO $62.5K—
7 Stavola Elizabeth MaryDir ——
8 Silverman PhillipCFO ——

Transactions 8

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-04-22 21:31 2026-04-20 REFI Chicago Atlantic Real Estate Finance, Inc. Konigsberg Brandon Dir A - Grant $0.00 +6,324 33.9K +23% $0
2025-10-16 2025-10-14 REFI Chicago Atlantic Real Estate Finance, Inc. Konigsberg Brandon Dir P - Purchase $12.33 +7,000 27.5K +34% +$86.3K
2025-04-03 2025-04-01 REFI Chicago Atlantic Real Estate Finance, Inc. Konigsberg Brandon Dir A - Grant $0.00 +5,071 20.5K +33% $0
2024-04-03 2024-04-01 REFI Chicago Atlantic Real Estate Finance, Inc. Konigsberg Brandon Dir A - Grant $15.59 +4,811 15.5K +45% +$75.0K
2023-03-21 2023-03-17 ZSTK ZeroStack Corp. Konigsberg Brandon Dir A - Grant $0.00 +100.0K 100.0K New $0
2023-01-04 2022-12-31 REFI Chicago Atlantic Real Estate Finance, Inc. Konigsberg Brandon Dir A - Grant $0.00 +4,976 10.7K +87% $0
2021-12-10 2021-12-08 REFI Chicago Atlantic Real Estate Finance, Inc. Konigsberg Brandon Dir P - Purchase $16.00 +1,000 1,000 New +$16.0K
2021-12-10 2021-12-10 REFI Chicago Atlantic Real Estate Finance, Inc. Konigsberg Brandon Dir A - Grant $0.00 +4,688 5,688 +469% $0

Purchase Sale Sale after option exercise All abbreviations