WHITE BRIAN C
SEC insider (Form 3/4/5 filer). CIK 0001438029. Director at ALLEGRO MICROSYSTEMS, INC. (ALGM) and 1 other issuer. 7 reported Form 4/5 transactions since Sep 2024; latest on Aug 5, 2026. Located in MANCHESTER, NH.
Companies WHITE BRIAN C has filed insider reports for
- ALLEGRO MICROSYSTEMS, INC. (ALGM): Director
- FORMFACTOR INC (FORM): Director
WHITE BRIAN C
CIK: 0001438029
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)3 (42.9%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)4 (57.1%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (7 total)
- Aug 5, 2026ALGM
ALLEGRO MICROSYSTEMS, INC.
AwardDirectDeferred Stock Units
4.3K shares- - Jun 17, 2026ALGM
ALLEGRO MICROSYSTEMS, INC.
AwardDirect594 shares- - May 20, 2026FORM
FORMFACTOR INC
SaleDirect3.3K shares at avg. $126.00$410K - May 15, 2026FORM
FORMFACTOR INC
AwardDirect1.3K shares- - Feb 24, 2026FORM
FORMFACTOR INC
SaleDirect2.3K shares at avg. $100.01$230K - Feb 9, 2026FORM
FORMFACTOR INC
SaleDirect5.5K shares at avg. $90.95$500K - May 16, 2025FORM
FORMFACTOR INC
AwardDirect6.5K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 5, 2026 |  ALGM ALLEGRO MICROSYSTEMS, INC. | Award Deferred Stock Units | 4,251 | - | - | Direct |
| Jun 17, 2026 | ALGM ALLEGRO MICROSYSTEMS, INC. | Award | 594 | - | $0 | Direct |
| May 20, 2026 |  FORM FORMFACTOR INC | Sale | 3,250 | $126.00 | $409,500 | Direct |
| May 15, 2026 | FORM FORMFACTOR INC | Award | 1,347 | - | $0 | Direct |
| Feb 24, 2026 | FORM FORMFACTOR INC | Sale | 2,300 | $100.01 | $230,023 | Direct |
| Feb 9, 2026 | FORM FORMFACTOR INC | Sale | 5,500 | $90.95 | $500,225 | Direct |
| May 16, 2025 | FORM FORMFACTOR INC | Award | 6,528 | - | - | Direct |
1-7 of 7 transactions