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SUI SUN COMMUNITIES INC Insider Trading

Latest: EVP, CFO, Sec. & Treas. Sold $3.0M of Shares · May 2026

Multiple insiders have been active at SUN COMMUNITIES INC (SUI): 3 distinct insiders account for 1 buy filing and 3 sell filings as of Jun 2026. Its highest-significance filing in the last 90 days: EVP, CFO, Sec. & Treas. Fernando Castro-Caratini sold $3.0M, transaction dated May 2026.

4 filings analyzed · Latest 2026-06-25

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Buys
1
Sells
3
Insiders
3
Direction
Net selling

SUN COMMUNITIES INC leadership

Chair
Gary A. Shiffman — Chairman of the Board

Historically, stocks have lagged the S&P 500 by a median ~3% over the 90 days after a medium insider sell (n ≈ 4,738, 2024-2026). Past results don't predict the future. How we measure this ↗

June 2026
2026-06-25
medium
25,031 shares
$3,002,719
@ $119.96
Significance 4

Director Gary A Shiffman sold 25,031 shares of SUI at $119.96; current price $118.62 is -14.0% from 52-week high.

Director Gary A Shiffman sold 25,031 shares at $119.96 for total value of $3,002,718.76, reducing his holdings by 2.8% to 857,761 shares post-transaction. The sale occurred as SUI stock trades -14.0% from its 52-week high of $137.85 and has declined 5.0% over the past 30 days and 5.5% over 90 days. Fundamentally, the company reported a net loss of $-6.4M in the latest quarter with annual revenue declining 28.4% year-over-year, suggesting operational headwinds. His prior transaction at this ticker (a December 2025 sale) subsequently saw the stock appreciate 9.5% over 90 days, indicating that sell was poorly timed; the current transaction's timing signal remains unclear but warrants monitoring given the company's deteriorating profitability and revenue trajectory.

May 2026
2026-05-27
high
EVP, CFO, Sec. & Treas.
23,750 shares
$2,955,281
@ $124.43
Significance 6

CFO Fernando Castro-Caratini sold 23,750 shares at blended average $124.43 for $2,955,280.90

Fernando Castro-Caratini, EVP, CFO, Secretary & Treasurer, executed two separate sales totaling 23,750 shares for $2,955,280.90 on 2026-05-26, reducing his holdings by 70.4% from 33,748 to 9,998 shares. The company's most recent quarter shows net income of -$6,400,000.00, annual revenue growth of -28.4%, and a 52-week stock decline of 9.2% from the $137.85 high. The substantial reduction in the CFO's stake during a period of negative earnings and declining revenue growth is a material development that investors should monitor, particularly given the officer's financial and treasury responsibilities.

December 2025
2025-12-18
high
156,875 shares
$19,378,769
@ $123.53
Significance 7

Director GARY A SHIFFMAN sells entire SUI stake (156.9K shares) for $19.4M at $123.53; zero holdings remain.

GARY A SHIFFMAN, a director of Sun Communities Inc, executed a complete exit from his equity position, selling 156.9K shares for $19.4M at $123.53 on 2025-12-17, leaving zero shares post-transaction. This represents a -100.0% reduction in his holdings. At the time of the sale, the stock traded $123.53 versus a current price of $122.93, placing the transaction price -9.9% from the 52-week high of $136.43. The complete liquidation of a director's entire stake merits investor attention, as the elimination of all equity ownership—rather than a partial reduction—signals a material change in his financial exposure to the company's future performance. Investors should evaluate whether this exit reflects personal liquidity needs, portfolio rebalancing, or broader confidence considerations, particularly given the company's elevated P/E of 173.14 and flat annual revenue growth of -0.1%.

June 2025
2025-06-09
medium
BLAU JEFF Buy
3,665 shares
$432,433
@ $117.99
Significance 4

Director Jeff Blau initiates stake in SUI with 3,665 shares at $117.99 (May 2025)

Director Jeff Blau purchased 3,665 shares of Sun Communities at $117.99 on 2025-05-23, establishing an initial position. This represents a new buy by the director, though the stock currently trades at $125.12, about -15.2% from its 52-week high. The company faces significant headwinds: latest quarterly revenue is $470.2M with a net loss of $-41.2M, and the P/E ratio of 181.33 reflects a deep valuation dislocation given the negative earnings backdrop. The purchase occurred during a period where the stock has declined -3.6% over the prior 90 days, providing observable context for the timing of the transaction.

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