InsidersTradesSigma
Total declarations
Companies
▲ Purchases (1 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
1
Disclosed sells
0
T+90 hit rate
100%
T+90 mean return
+50.8%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
No signal scores available.
Browse the full record of transactions filed by Kirby William C., Director. Director active across 2 companies, notably CABOT CORP. Cumulatively, 7 reports have been logged. Split: 1 buy · 0 sell. Total volume traded: €2.8m. History available since 13 January 2022. The latest transaction was disclosed on 26 February 2026 (Acquisition). Regulator: SEC (Form 4). The full history is accessible without signup.
Companies and markets linked to Kirby William C.
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Declarations7 total
50,686.9 shares@ US$64.90100.0% of flowTaiwan Fund, Inc.SEC:0001193125-26-083648:0
Canonical exit: 27 May 2026 (T+90)
486 shares0Common StockSEC:0001193125-26-010561:0
1,788 shares0Common StockSEC:0000950170-25-005481:0
2,035 shares0Common StockSEC:0000950170-24-004255:0
1,854 shares0Common StockSEC:0001209191-23-003274:0
2,254 shares0Common StockSEC:0001209191-22-003335:0
1,987 sharesCommon StockSEC:0001209191-16-090856:0
7 of 7 declarations
About Kirby William C.
Kirby William C. is Administrateur at CABOT CORP and Taiwan Fund INC. He has filed 7 disclosures in total, and across the 7 recent filings tracked, buys amount to EUR 2784202, with no sales, and the modal transaction nature is listed as Attribution for the period from 2016-01-12 to 2026-02-27.
