Elena Ridloff

SION

Elena Ridloff serves as CFO & Head of Corp. Dev. at Sionna Therapeutics, Inc. (SION). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

4 trades

$1.99M

Net Position

Net Seller

$1.99M

Companies Traded

SION, ACAD

Active Period

Apr 2021 – Aug 2025

4 total trades

Most Recent

Sell SION

Aug 29, 2025 · $240.4K

Elena Ridloff's Insider Trading at Sionna Therapeutics, Inc. (SION)

Buys

0 · $0.00

Sells

3 · $1.97M

Total Shares Bought

Total Shares Sold

85,000

SION Price Chart

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Date	Type	Shares	Avg Price	Value
Aug 29, 2025↗	Sell	9,584	$25.09	$240.4K
Aug 26, 2025↗	Sell	23,416	$25.70	$601.9K
Aug 19, 2025↗	Sell	52,000	$21.62	$1.12M

Elena Ridloff's Insider Trading at ACADIA Pharmaceuticals Inc. (ACAD)

Buys

0 · $0.00

Sells

1 · $21.0K

Total Shares Bought

Total Shares Sold

1,032

ACAD Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Apr 30, 2021↗	Sell	1,032	$20.33	$21.0K	10,553

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