CREATE TABLE Transactions (transaction_id INT, investor_id INT, transaction_type_code VARCHAR, date_of_transaction DATETIME, amount_of_transaction DECIMAL, share_count VARCHAR, other_details VARCHAR)
CREATE TABLE Purchases (purchase_transaction_id INT, purchase_details VARCHAR)
CREATE TABLE Ref_Transaction_Types (transaction_type_code VARCHAR, transaction_type_description VARCHAR)
CREATE TABLE Lots (lot_id INT, investor_id INT, lot_details VARCHAR)
CREATE TABLE Investors (investor_id INT, Investor_details VARCHAR)
CREATE TABLE Sales (sales_transaction_id INT, sales_details VARCHAR)
CREATE TABLE Transactions_Lots (transaction_id INT, lot_id INT)

For the transaction dates if share count is smaller than 10, bin the dates into the year interval, and count them using a line chart.
SELECT date_of_transaction, COUNT(date_of_transaction) FROM Transactions WHERE share_count < 10
SELECT "date_of_transaction", COUNT("date_of_transaction") FROM "Transactions" WHERE "share_count" < 10