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AMY L RONNEBERG

CIK 1380292 · Vice President & Controller · last filed 2026-05-22

AMY L RONNEBERG is a Vice President & Controller who has filed 36 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for ACTU, was dated May 22, 2026. Across all open-market trades the lifetime net is −$2.7M, making them a net seller over the disclosed history.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$0

Companies

3

Total Filings

36

Lifetime Open-Market Net

-$2.72M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ACTU Director — $2.02 — $0 3 2026-05-22
Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted Director 593,611 $11.19 $6.64M $0 6 2022-06-30
CAPELLA EDUCATION CO (CPLA) Delisted Vice President & Controller 2,335 — — -$2.72M 27 2011-05-12

Recent Filings

36 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-22 ACTU Grant (A) — $0 EDGAR
2025-05-23 ACTU Grant (A) — $0 EDGAR
2024-08-14 ACTU Grant (A) — $0 EDGAR
2022-06-30 Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted Grant (A) — $0 EDGAR
2021-06-03 Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted Grant (A) — $0 EDGAR
2020-06-09 Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted Grant (A) — $0 EDGAR
2019-06-11 Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted Grant (A) — $0 EDGAR
2018-09-27 Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted Grant (A) — $0 EDGAR
2018-06-27 Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted Conv (C) +593,611 $0 EDGAR
2011-05-12 CAPELLA EDUCATION CO (CPLA) Delisted Grant (A) — $0 EDGAR
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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.