Investors / filer profile

Donnelly William P

Executive Chair

active in 3 companies · 1 of 1 positions beat the S&P ~6mo later

Pro
Bought: Pro
Sold: 15
Filings: 3
Companies: 2026-08-17
Last filed

EDGAR · CIK 0001207928 ↗

Track record

How each disclosed position did against the S&P ~6 months later

The outcome curve and every position's resultPro →

+37.4%

median move per position

+13.4%

S&P 500 median, same spans

1 of 1

beat the S&P ~6mo later

1 position still inside the ~6-month window — not scored yet.

Disclosed positions

Estimated from their latest filings — positions may have changed since

Estimated positions from their latest filingsPro →

Activity

Open-market buy & sell volume

BuySell

Total +$792.7K bought

All filings on record

Every Form 4 transaction we track for this filer


QTRXQuanterix Corp	Exercise — · 2,802 sh	2026-08-17	—
QTRXQuanterix Corp	Buy $211.7K · 72,245 sh	2026-08-13	—
QTRXQuanterix Corp	Buy $74.7K · 27,155 sh	2026-08-12	—
TROWPRICE T ROWE GROUP INC	Grant — · 576 sh	2026-06-30	—
TROWPRICE T ROWE GROUP INC	Grant $16.2K · 142 sh	2026-06-29	—
IRIngersoll Rand Inc.	Exercise — · 3,029 sh	2026-02-26	—
QTRXQuanterix Corp	Grant — · 2,377 sh	2026-01-02	—
TROWPRICE T ROWE GROUP INC	Grant — · 621 sh	2025-12-31	—
TROWPRICE T ROWE GROUP INC	Grant $12.3K · 119 sh	2025-12-30	—
QTRXQuanterix Corp	Grant $28.1K · 5,076 sh	2025-10-01	—

QTRXExercise

2026-08-17 · Quanterix Corp

2,802

—

QTRXBuy

2026-08-13 · Quanterix Corp

$211.7K

—

QTRXBuy

2026-08-12 · Quanterix Corp

$74.7K

—

TROWGrant

2026-06-30 · PRICE T ROWE GROUP INC

576

—

TROWGrant

2026-06-29 · PRICE T ROWE GROUP INC

$16.2K

—

IRExercise

2026-02-26 · Ingersoll Rand Inc.

3,029

—

QTRXGrant

2026-01-02 · Quanterix Corp

2,377

—

TROWGrant

2025-12-31 · PRICE T ROWE GROUP INC

621

—

TROWGrant

2025-12-30 · PRICE T ROWE GROUP INC

$12.3K

—

QTRXGrant

2025-10-01 · Quanterix Corp

$28.1K

—

Newest 10 of 15 filingsEvery Form 4 on record, with outcomesPro →

Outcomes measure each position — the first buy in a stock and every buy within 182 days — against the closing price ~6 months (120 trading days) later, with the S&P 500 over the same span for context. Pre-scheduled 10b5-1 plan trades are excluded from the record. Positions are estimated from the latest reported post-transaction holdings, split-adjusted, at the latest close. Built from SEC Form 4 filings and market prices — past outcomes, not predictions or advice.