Robert Joseph Ball

CIK: 0002070664

Transaction Breakdown

Open Market Buys (P)5 (33.3%)

High conviction signal

Open Market Sales (S)1 (6.7%)

Position reduction

Option Exercises (M)5 (33.3%)

Derivative conversions

Awards (A)2 (13.3%)

Compensation grants

Other (G, F, J, C, D, …)2 (13.3%)

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

Companies & Roles (1)

SHOULDER INNOVATIONS, INC.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (15 total)

SI
SHOULDER INNOVATIONS, INC.
Oct 30, 2026
Exercise(M)
Direct
66.8K shares at avg. $2.48$166K
SI
SHOULDER INNOVATIONS, INC.
Oct 30, 2026
Tax Payment(F)
Direct
29.6K shares at avg. $20.44$606K
SI
SHOULDER INNOVATIONS, INC.
Sep 14, 2026
Sale(S)
Direct
10.2K shares at avg. $18.45$188K
SI
SHOULDER INNOVATIONS, INC.
Sep 14, 2026
Exercise(M)
Direct
89.2K shares at avg. $2.10$187K
SI
SHOULDER INNOVATIONS, INC.
Apr 30, 2026
Exercise(M)
Direct
10K shares at avg. $2.48$25K
SI
SHOULDER INNOVATIONS, INC.
Mar 13, 2026
Purchase(P)
Direct
2.2K shares at avg. $15.18$33K
SI
SHOULDER INNOVATIONS, INC.
Feb 6, 2026
Exercise(M)
Direct
2.1K shares at avg. $2.10$4K
SI
SHOULDER INNOVATIONS, INC.
Feb 6, 2026
Exercise(M)
Direct
10K shares at avg. $2.48$25K
SI
SHOULDER INNOVATIONS, INC.
Jan 30, 2026
Award(A)
Stock Option
Direct
265.4K shares-
SI
SHOULDER INNOVATIONS, INC.
Dec 31, 2025
Award(A)
Direct
1.7K shares at avg. $12.16$20K
SI
SHOULDER INNOVATIONS, INC.
Dec 12, 2025
Purchase(P)
Direct
3.9K shares at avg. $14.89$58K
SI
SHOULDER INNOVATIONS, INC.
Dec 11, 2025
Purchase(P)
Direct
3.3K shares at avg. $14.83$49K
SI
SHOULDER INNOVATIONS, INC.
Sep 12, 2025
Purchase(P)
Direct
6K shares at avg. $15.49$93K
SI
SHOULDER INNOVATIONS, INC.
Sep 11, 2025
Purchase(P)
Direct
2K shares at avg. $14.90$30K
SI
SHOULDER INNOVATIONS, INC.
Aug 1, 2025
Conversion(C)
Direct
85.9K shares-

		Type	Shares	Price		Ownership
Oct 30, 2026	SI SHOULDER INNOVATIONS, INC.	Exercise(M)	66,757	$2.48	$165,584	Direct
Oct 30, 2026	SI SHOULDER INNOVATIONS, INC.	Tax Payment(F)	29,639	$20.44	$605,821	Direct
Sep 14, 2026	SI SHOULDER INNOVATIONS, INC.	Sale(S)	10,175	$18.45	$187,706	Direct
Sep 14, 2026	SI SHOULDER INNOVATIONS, INC.	Exercise(M)	89,233	$2.10	$187,282	Direct
Apr 30, 2026	SI SHOULDER INNOVATIONS, INC.	Exercise(M)	10,000	$2.48	$24,804	Direct
Mar 13, 2026	SI SHOULDER INNOVATIONS, INC.	Purchase(P)	2,200	$15.18	$33,392	Direct
Feb 6, 2026	SI SHOULDER INNOVATIONS, INC.	Exercise(M)	2,062	$2.10	$4,328	Direct
Feb 6, 2026	SI SHOULDER INNOVATIONS, INC.	Exercise(M)	10,000	$2.48	$24,804	Direct
Jan 30, 2026	SI SHOULDER INNOVATIONS, INC.	Award(A) Stock Option	265,351	-	-	Direct
Dec 31, 2025	SI SHOULDER INNOVATIONS, INC.	Award(A)	1,661	$12.16	$20,198	Direct
Dec 12, 2025	SI SHOULDER INNOVATIONS, INC.	Purchase(P)	3,900	$14.89	$58,075	Direct
Dec 11, 2025	SI SHOULDER INNOVATIONS, INC.	Purchase(P)	3,300	$14.83	$48,934	Direct
Sep 12, 2025	SI SHOULDER INNOVATIONS, INC.	Purchase(P)	6,000	$15.49	$92,945	Direct
Sep 11, 2025	SI SHOULDER INNOVATIONS, INC.	Purchase(P)	2,000	$14.90	$29,810	Direct
Aug 1, 2025	SI SHOULDER INNOVATIONS, INC.	Conversion(C)	85,888	-	-	Direct

1-15 of 15 transactions

About Ball Robert Joseph

Ball Robert Joseph (SEC CIK 0002070664) files insider reports with the SEC as CEO & Executive Chairman of SHOULDER INNOVATIONS, INC. (SI).

Signal8 holds 11 ownership filings by Ball Robert Joseph (1 Form 3, 10 Form 4), filed between Jul 30, 2025 and Nov 2, 2026. Those filings report 15 transactions, from Aug 1, 2025 to Oct 30, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Ball Robert Joseph's filings is in GRAND RAPIDS, MI.

Recent filings by Ball Robert Joseph

Oct 30, 2026: Option exercise of SI shares (Form 4, code M).
Oct 30, 2026: Tax withholding of SI shares (Form 4, code F).
Sep 14, 2026: Open-market sale of SI shares (Form 4, code S).
Sep 14, 2026: Option exercise of SI shares (Form 4, code M).
Apr 30, 2026: Option exercise of SI shares (Form 4, code M).

Other insiders filing for SHOULDER INNOVATIONS, INC. (SI)

Tansey Casey M, Director
Sidow Kevin K., Director
Hykes Andrew, Director
BUCKMAN PAUL, Director
Gilde Healthcare Holding B.V., 10% Owner
Ahearn Matthew Fraser, Chief Operating Officer

How to read Form 4 transaction codes