Armbrister Clarence D 4

4 · HA Sustainable Infrastructure Capital, Inc. · Filed Jun 5, 2026

AI-generated summary of this filing

Updated Jun 5, 2026

HASI Director Clarence Armbrister Receives 3,553-Unit Award

What Happened

Clarence D. Armbrister, a director of HA Sustainable Infrastructure Capital, Inc. (HASI), was granted/awarded 3,553 derivative units on 2026-06-03. The reported acquisition price is $0.00 (transaction code A — award/grant). This is a compensation/award-type transaction rather than an open-market purchase or sale.

Key Details

Transaction date and price: 2026-06-03; 3,553 units @ $0.00 (award).
Filing date: 2026-06-05 reporting the 06-03 transaction (filed within the Form 4 reporting window).
Shares/units owned after transaction: Not specified in this Form 4.
Notable footnotes:
- F1: Includes 36 shares of common stock acquired via dividend reinvestment since the last Section 16 filing.
- F2: 23,551 partnership units (OP Units) are issuable upon vesting/conversion of 23,551 LTIP Units the Reporting Person holds in the Partnership.
- F3: Vested LTIP Units convert to OP Units one-for-one; converted OP Units may be redeemed for cash equal to the market value of an equivalent number of HASI common shares, or — at the Issuer’s option — converted into HASI common shares on a one-for-one basis (subject to the Partnership Agreement).
Exhibit/authorization: Exhibit 24.1 Power of Attorney dated April 30, 2026 included.

Context

This filing reports an award of derivative/long-term incentive units (not a cash purchase or sale). Per the partnership agreement, these LTIP units can convert into partnership OP Units, and upon conversion the holder may receive cash tied to the market value of HASI shares or receive shares directly. Such awards are typically compensation-related; they do not by themselves indicate a buy or sell signal.

Form 4

Period: 2026-06-03

Director

Transactions

Award
LTIP Units
[F2][F3][F4]
2026-06-03+3,553→ 23,551 total
→ Common stock, par value $0.01 per share (3,553 underlying)

Holdings

Footnotes (4)

[F1]Includes 36 shares of Common stock which were acquired through a dividend reinvestment program since the Reporting Owner's last Section 16 filing.
[F2]23,551 units of limited partner interest ("OP Units") in Hannon Armstrong Sustainable Infrastructure, LP (the "Partnership") are issuable upon the vesting and conversion of 23,551 long-term incentive plan units ("LTIP Units") in the Partnership.
[F3]Vested LTIP Units, after achieving parity with OP Units (as described in the Partnership's Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), are eligible to be converted into OP Units on a one-for-one basis upon the satisfaction of conditions set forth in the Partnership Agreement. Upon conversion of LTIP Units into OP Units, the Reporting Person will have the right to cause the Partnership to redeem a portion of the Reporting Person's OP Units for cash in an amount equal to the market value (as defined in the Partnership Agreement) of an equivalent number of shares of common stock, par value $0.01 per share, of HA Sustainable Infrastructure Capital, Inc. (the "Issuer"), or at the Issuer's option, shares of the Issuer's common stock on a one-for-one basis, subject to certain adjustments.
[F4]N/A

Signature

/s/ Michael Stephan, Attorney-in-Fact|2026-06-05

2 files