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Kirby William C.

SEC insider (Form 3/4/5 filer). CIK 0001413483. Director at TAIWAN FUND INC (TWN) and 1 other issuer. 3 reported Form 4/5 transactions since Sep 2024; latest on Feb 26, 2026. Located in LEXINGTON, MA.

Companies Kirby William C. has filed insider reports for

  • TAIWAN FUND INC (TWN): Director
  • CABOT CORP (CBT): Director
Kirby William C. profile photo

Kirby William C.

CIK: 0001413483

Transaction Breakdown

Open Market Buys (P)1 (33.3%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (66.7%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

TAIWAN FUND INC logo
TWN

TAIWAN FUND INC

Director
CABOT CORP logo
CBT

CABOT CORP

Director

Discretionary Trading P&L

Holdings

Transaction History (3 total)

  • TAIWAN FUND INC logo
    TWN

    TAIWAN FUND INC

    Feb 26, 2026
    Purchase
    Direct
    50.7K shares at avg. $64.90$3.3M
  • CABOT CORP logo
    CBT

    CABOT CORP

    Jan 8, 2026
    Award
    Direct
    486 shares-
  • CABOT CORP logo
    CBT

    CABOT CORP

    Jan 10, 2025
    Award
    Direct
    1.8K shares-

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