Curbline director sells 255K shares near $30

A CURB director disclosed broker-executed open-market sales totaling 254,924 shares over two days.

Rhea-AI Filing Summary

Curbline Properties Corp. (CURB) director Otto Alexander reported open-market sales of company common stock over two days in September 2026. On September 8, 2026, he sold 221,812 shares at a weighted average price of $29.68, with individual sale prices between $29.50 and $29.87. On September 9, 2026, he sold 33,112 shares at a weighted average price of $29.59, with individual prices between $29.50 and $29.81. The sales were executed through a broker-dealer in multiple same-way transactions grouped by price range, and no Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Net Seller: 254,924 shares

Net Sell 2 txns

Insider Otto Alexander

Role Director

Sold 254,924 shs ($7.56M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F3	33,112	$29.59	$980K
Sale	Common Stock F1, F2	221,812	$29.68	$6.58M

Holdings After Transaction: Common Stock — 6,553,258 shares (Direct)

Footnotes (3)

1. F1. The reporting person effected multiple same-way open market sale transactions on the same day at different prices through a sale order executed by a broker-dealer. The reporting person reported on a single line all such transactions that occurred within a one dollar price range. The reporting person hereby undertakes to provide upon request by the SEC staff, the issuer, or a shareholder of the issuer, full information regarding the number of shares sold at each separate price.
2. F2. Reflects the weighted average sale price. The range of prices for such transaction is between $29.50 and $29.87.
3. F3. Reflects the weighted average sale price. The range of prices for such transaction is between $29.50 and $29.81.

Key Figures

Shares sold September 8, 2026: 221,812 shares Weighted average price September 8, 2026: $29.68 per share Shares sold September 9, 2026: 33,112 shares +2 more

5 metrics

Shares sold September 8, 2026 221,812 shares Open-market sale of CURB common stock by director Otto Alexander

Weighted average price September 8, 2026 $29.68 per share Sale price range between $29.50 and $29.87

Shares sold September 9, 2026 33,112 shares Open-market sale of CURB common stock by director Otto Alexander

Weighted average price September 9, 2026 $29.59 per share Sale price range between $29.50 and $29.81

Total shares sold across reported transactions 254,924 shares Net sell position from Form 4 transaction summary

Key Terms

weighted average sale price, open market sale transactions, broker-dealer

3 terms

weighted average sale price financial

"Reflects the weighted average sale price. The range of prices"

open market sale transactions financial

"multiple same-way open market sale transactions on the same day"

broker-dealer financial

"sale transactions on the same day at different prices through a sale order executed by a broker-dealer"

A broker-dealer is a licensed firm or individual that both executes trades on behalf of clients (acting as a broker) and buys or sells securities for its own account (acting as a dealer). Investors care because broker-dealers provide the plumbing of markets — they place orders, hold or move cash and securities, offer research or advice, and their stability and fees directly affect trade execution, costs, and the safety of client funds; think of them as a combined travel agent and taxi for your investments.

FAQ

What insider transactions did CURB director Otto Alexander report in this Form 4?

He reported two open-market sales of Curbline Properties Corp. common stock: 221,812 shares on September 8, 2026 and 33,112 shares on September 9, 2026, all held directly.

How many CURB shares did Otto Alexander sell and at what prices?

He sold a total of 254,924 shares. On September 8, 2026 he sold 221,812 shares at a weighted average price of $29.68, and on September 9, 2026 he sold 33,112 shares at a weighted average price of $29.59.

What price ranges applied to Otto Alexander’s CURB stock sales?

For the September 8, 2026 sale, the price range was $29.50 to $29.87. For the September 9, 2026 sale, the price range was $29.50 to $29.81, with each day’s reported price reflecting a weighted average.

Were Otto Alexander’s CURB stock sales made under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is not checked, and the footnotes do not state that the transactions were made pursuant to a Rule 10b5-1 trading plan.

How were Otto Alexander’s CURB stock sales executed?

The sales were multiple same-way open-market transactions executed by a broker-dealer. They were reported on single lines per day, grouping all trades that occurred within a one-dollar price range, using weighted average prices.

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Available on EDGAR 09/10/2026 - 04:10 PM Accepted by SEC EDGAR 09/10/2026 - 04:10 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Otto Alexander

(Last) (First) (Middle)

KG CURA VERMOGENSVERWALTUNG G.M.B.H.&CO.

SASELER DAMM 39 A

(Street)

HAMBURG GERMANY D-22395

(City) (State) (Zip)

GERMANY

(Country)

2. Issuer Name and Ticker or Trading Symbol
Curbline Properties Corp. [ CURB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/08/2026		S		221,812	D	$29.68(1)(2)	6,586,370	D
Common Stock	09/09/2026		S		33,112	D	$29.59(1)(3)	6,553,258	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The reporting person effected multiple same-way open market sale transactions on the same day at different prices through a sale order executed by a broker-dealer. The reporting person reported on a single line all such transactions that occurred within a one dollar price range. The reporting person hereby undertakes to provide upon request by the SEC staff, the issuer, or a shareholder of the issuer, full information regarding the number of shares sold at each separate price.

2. Reflects the weighted average sale price. The range of prices for such transaction is between $29.50 and $29.87.

3. Reflects the weighted average sale price. The range of prices for such transaction is between $29.50 and $29.81.

	/s/ Frederic Arndts, managing director of KG CURA Vermogensverwaltung G.m.b.H. & Co., For: Alexander Otto	09/10/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)