400 East 84th Street Owners Corporation

4. Amendment 4 April 23, 2026

   This amendment changes the offering prices of nine apartments and attaches a new Schedule A with their prices and projected maintenance charges.

   • Offering prices of Apartments 28A, 29A, 30A, 31B, 36A, 38B, 39B, 40A and 40B modified; now offered at prices shown in Schedule A
   • Schedule A sets offering prices and projected maintenance charges for the first year of operations, January 1, 2026 - December 31, 2026
   • Sponsor may revise offering prices and other terms further, but not for a Purchaser who already entered an Agreement without that Purchaser's consent
   • Third Amendment submitted to the DOL on March 24, 2026 is pending review and not yet filed
   • No Exclusive Purchase Period extended or renewed

3. Amendment 3

   The amendment reports the first apartment closing, changes prices for seven apartments, offers 15 more parking licenses and 95 storage spaces, and updates budgets, cooperative documents and the initial board.

   • First closing held: Apartment 18A closed on February 18, 2026
   • Offering prices changed for Apartments 7C, 8D, 20C, 24C, 25C, 27C and PH1A
   • 15 more parking spaces added; 35 Parking Licenses now offered for sale
   • Storage reconfigured to 95 Storage Spaces, all offered for sale, per updated Schedule A-1 (Exhibit A-2)
   • Schedules B and C budgets and Maintenance Charges updated; Exhibit B-2 supersedes prior budgets
   • Reserve Fund of $5,179,300 established at Bank of America; Sponsor took a credit of up to 1% of the Total Price
   • Apartment corporation formed January 21, 2026; Co-Op Unit transferred to it January 29, 2026
   • Initial Co-Op Board named: Andrew Orchulli, Thomas Deighton and Tom Hutton, all affiliated with Sponsor

2. Amendment 2

   This amendment offers parking licenses for up to 20 co-op parking spaces, declares the plan effective, reduces the apartment count from 144 to 143 by combining 17C and 17D, updates floor plans and building disclosures, extends the Local Law 97 filing deadline, and sets a Reserve Fund Credit for completed capital work.

   • Parking Licenses offered for up to 20 co-op parking spaces at a $100,000 license issuance fee per license, set by Sponsor and not reviewed by the Department of Law
   • Parking Licensees pay a monthly fee of $400 to the Apartment Corporation, subject to future increases
   • Plan declared effective
   • Apartments 17C and 17D combined into one apartment, 17C; total apartments now 143 instead of 144
   • Revised floor plans (Exhibit D-1) replace Exhibit 5; Description of Property and Building Condition updated
   • Local Law 97 first filing deadline set to May 1, 2027 (previously May 1, 2025)
   • Reserve Fund Credit for capital improvements: work costs approximately $4,259,147, with the credit capped at $2,589,650
   • Parking license preparation fee of $650.00 payable to Sponsor's counsel; maximum vehicle size 76 x 80 x 210 inches

1. Amendment 1 October 15, 2025

   This amendment changes the offering prices of Apartments 12E and 20A and attaches a new Schedule A of offering prices and projected maintenance charges for the first year of operations.

   • Offering prices of Apartments 12E and 20A modified
   • Apartment 12E offered at $1,765,000 for non-tenant purchaser and $1,412,000 for eligible tenant purchaser
   • Apartment 20A offered at $1,745,000 for non-tenant purchaser and $1,396,000 for eligible tenant purchaser
   • Schedule A sets offering prices and projected maintenance charges for first year of operations, January 1, 2026 - December 31, 2026
   • Sponsor may revise further offering prices and other terms of sale, but not for purchasers who already signed an Agreement without their consent
   • Exclusive Purchase Period not extended or renewed

Summarized from the amendments' text (scanned ones read with OCR); the filings themselves are on the Attorney General's site.