Frantz Brian D
SEC insider (Form 3/4/5 filer). CIK 0001496943. Chief Accounting Officer at Yellowstone Midco Holdings II, LLC (YSS) and 1 other issuer. 5 reported Form 4/5 transactions since Sep 2024; latest on Jan 30, 2026. Located in GREENWOOD VILLAGE, CO.
Companies Frantz Brian D has filed insider reports for
- Yellowstone Midco Holdings II, LLC (YSS): Officer, Chief Accounting Officer
- Summit Materials, Inc. (SUM): Officer, See Remarks
Frantz Brian D
CIK: 0001496943
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)3 (60.0%)
Compensation grants
Other (G, F, J, C, D, …)2 (40.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (5 total)
- Jan 30, 2026YSS
Yellowstone Midco Holdings II, LLC
AwardDirect10.3K shares- - Feb 10, 2025SUM
Summit Materials, Inc.
DispositionDirect11.4K shares at avg. $52.50$599K - Jan 16, 2025SUM
Summit Materials, Inc.
AwardDirect1.3K shares- - Jan 16, 2025SUM
Summit Materials, Inc.
Tax PaymentDirect460 shares at avg. $52.19$24K - Jan 15, 2025SUM
Summit Materials, Inc.
AwardDirectRestricted Stock Units
4.5K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jan 30, 2026 |  YSS Yellowstone Midco Holdings II, LLC | Award | 10,294 | - | $0 | Direct |
| Feb 10, 2025 |  SUM Summit Materials, Inc. | Disposition | 11,402 | $52.50 | $598,605 | Direct |
| Jan 16, 2025 | SUM Summit Materials, Inc. | Award | 1,348 | - | $0 | Direct |
| Jan 16, 2025 | SUM Summit Materials, Inc. | Tax Payment | 460 | $52.19 | $24,007 | Direct |
| Jan 15, 2025 | SUM Summit Materials, Inc. | Award Restricted Stock Units | 4,460 | - | - | Direct |
1-5 of 5 transactions