InsidersTradesSigma
Total declarations
Companies
▲ Purchases (13 ops.)
▼ Sales (2 ops.)
Insider track record
Board DirectorDisclosed buys
13
Disclosed sells
2
T+90 hit rate
75%
T+90 mean return
+65.3%
Across 12 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the detailed record of transactions filed by Seidenberg Beth C, Director. Director active across 8 companies, notably Vera Therapeutics, Inc.. Cumulatively, 41 disclosures have been logged. Split: 13 buys · 2 sells. Total volume traded: €3.2m. History available since 8 June 2021. The latest transaction was filed on 18 December 2025 (Acquisition). Regulator: SEC (Form 4). All data is openly available.
Companies and markets linked to Seidenberg Beth C
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations41 total
938,979 sharesCommon StockSEC:0001184592-26-000005:0
3,547,842 sharesCommon StockSEC:0001184592-26-000005:1
1,027,635 sharesCommon StockSEC:0001184592-26-000005:2
3,464,072 sharesCommon StockSEC:0001184592-26-000005:3
1,484,401 sharesCommon StockSEC:0001184592-26-000005:4
165,519 sharesCommon StockSEC:0001184592-26-000005:5
2,066,857 sharesCommon StockSEC:0001184592-26-000005:6
133,333 shares@ US$7.50100.0% of flowCommon StockSEC:0001104659-25-123597:0
Canonical exit: 18 Mar 2026 (T+90)
16,634 shares0Common StockSEC:0000950170-25-080457:0
60,000 sharesCommon StockSEC:0001962918-25-000062:0
14,798 shares@ US$48.012328.4% of flowClass A Common StockSEC:0001415889-24-025746:0
1,177 shares@ US$42.01191.9% of flowClass A Common StockSEC:0001415889-24-023779:0
7,206 shares0Common StockSEC:0001551306-24-000122:0
3,787,940 sharesCommon StockSEC:0000950170-24-015465:0
38,763 sharesCommon StockSEC:0001104659-23-082736:0
17,162 shares0Common StockSEC:0001628280-23-023606:0
1,398,900 shares0Common StockSEC:0001628280-23-022017:0
57,000 shares0Common StockSEC:0001140361-23-028161:0
5,116 shares0Common StockSEC:0001628280-23-020505:0
8,540,729 sharesCommon StockSEC:0001209191-23-028884:0
2,300 shares@ US$7.23950.7% of flowClass A Common StockSEC:0001209191-23-022150:0
Canonical exit: 28 Jun 2023 (T+90)
23,908 shares@ US$7.24416.9% of flowClass A Common StockSEC:0001209191-23-021609:0
Canonical exit: 26 Jun 2023 (T+90)
1,833 shares@ US$7.24050.5% of flowClass A Common StockSEC:0001209191-23-021386:0
Canonical exit: 22 Jun 2023 (T+90)
74,045 shares@ US$7.115721.4% of flowClass A Common StockSEC:0001209191-23-020280:0
Canonical exit: 15 Jun 2023 (T+90)
32,844 shares@ US$7.12499.4% of flowClass A Common StockSEC:0001209191-23-019611:0
Canonical exit: 13 Jun 2023 (T+90)
25 of 41 declarations
About Seidenberg Beth C
SEIDENBERG BETH C is Administrateur and is linked to Vera Therapeutics, Inc., Progyny, Inc., Kyverna Therapeutics, Inc., Atara Biotherapeutics, Inc., ACELYRIN, Inc. and Sagimet Biosciences Inc. She has 34 filings in total, and across the 34 recent filings held here, buys total 2463920 EUR and sells total 702555 EUR, over the period from 2021-05-18 to 2025-12-22.
