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  4. [Form 4] Curbline Properties Corp. Insider Trading Activity

Curbline Properties Corp. (CURB) director sells 34K shares in market trades

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Curbline Properties Corp. (CURB) reported that director Otto Alexander sold an aggregate of 34,133 shares of Common Stock in open-market transactions over two days. On August 18, 2026, he sold 32,927 shares at a weighted average price of $30.02 per share, with individual sale prices ranging from $30.00 to $30.20. On August 19, 2026, he sold 1,206 shares at a weighted average price of $30.10 per share, with prices ranging from $30.00 to $30.15. The trades were executed through a broker-dealer and were not made pursuant to a Rule 10b5-1 trading plan.

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Insights

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Insider Otto Alexander
Role Director
Sold 34,133 shs ($1.02M)
Type Security Shares Price Value
Sale Common Stock F1, F3 1,206 $30.10 $36K
Sale Common Stock F1, F2 32,927 $30.02 $988K
Holdings After Transaction: Common Stock — 7,231,687 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 $30.00 and $30.20.
  3. F3. Reflects the weighted average sale price. The range of prices for such transaction is between $30.00 and $30.15.
Total shares sold 34,133 shares Aggregate Common Stock sales by Otto Alexander on August 18–19, 2026
Shares sold on August 18, 2026 32,927 shares Open-market sale of CURB Common Stock
Weighted average price on August 18, 2026 $30.02 per share Prices ranged from $30.00 to $30.20
Shares sold on August 19, 2026 1,206 shares Open-market sale of CURB Common Stock
Weighted average price on August 19, 2026 $30.10 per share Prices ranged from $30.00 to $30.15
weighted average sale price financial
"Reflects the weighted average sale price. The range of prices for such"
open market sale transactions financial
"multiple same-way open market sale transactions on the same day"
broker-dealer financial
"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 transaction did CURB disclose in this Form 4?
CURB disclosed that director Otto Alexander sold a total of 34,133 shares of Curbline Properties Corp. Common Stock in open-market transactions on August 18–19, 2026, executed through a broker-dealer.

How many CURB shares did Otto Alexander sell on each date?
On August 18, 2026, Otto Alexander sold 32,927 shares of CURB Common Stock. On August 19, 2026, he sold an additional 1,206 shares, for a combined total of 34,133 shares sold.

At what prices were Otto Alexander’s CURB share sales executed?
The August 18, 2026 sale had a weighted average price of $30.02 per share, with individual prices between $30.00 and $30.20. The August 19, 2026 sale had a weighted average price of $30.10, with prices between $30.00 and $30.15.

Were the CURB insider sales made under a Rule 10b5-1 trading plan?
No. The Form 4 indicates the Rule 10b5-1 checkbox is not marked, and the data show aff_10b5_one: false, meaning these transactions were not reported as being made under a Rule 10b5-1 trading plan.

What does the weighted average price disclosure mean for CURB’s Form 4?
For each day, the reported price is a weighted average sale price. Footnotes state that multiple same-way open-market sales occurred within a one-dollar range, and the insider undertakes to provide exact per-trade prices to the SEC, issuer, or shareholders upon request.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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)
HAMBURGGERMANYD-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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/18/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock08/18/2026S32,927D$30.02(1)(2)7,232,893D
Common Stock08/19/2026S1,206D$30.1(1)(3)7,231,687D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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 $30.00 and $30.20.
3. Reflects the weighted average sale price. The range of prices for such transaction is between $30.00 and $30.15.
/s/ Frederic Arndts, managing director of KG CURA Vermogensverwaltung G.m.b.H. & Co., For: Alexander Otto08/20/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR