WALSH CHRISTOPHER T PHD

CIK 1120360 · View on SEC EDGAR ↗

Insider

First SEC filing: Feb. 2, 2010 · Latest: Feb. 2, 2010

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 38 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 15, 2017 IRWD A 142 — — 71,499 Direct +0.20% Acquired (price as of 2026-08-20)
Dec. 15, 2016 IRWD A 161 — — 71,357 Direct +0.23% Acquired (price as of 2026-08-20)
Sept. 15, 2016 IRWD A 166 — — 71,196 Direct +0.23% Acquired (price as of 2026-08-20)
June 15, 2016 IRWD A 196 — — 71,030 Direct +0.28% Acquired (price as of 2026-08-20)
June 1, 2016 IRWD A 23,674 — — 70,834 Direct +50.20% Acquired (price as of 2026-08-20)
March 15, 2016 IRWD A 239 — — 47,160 Direct +0.51% Acquired (price as of 2026-08-20)
Dec. 15, 2015 IRWD A 227 — — 46,921 Direct +0.49% Acquired (price as of 2026-08-20)
Sept. 15, 2015 IRWD A 217 — — 46,694 Direct +0.47% Acquired (price as of 2026-08-20)
June 15, 2015 IRWD A 207 — — 46,477 Direct +0.45% Acquired (price as of 2026-08-20)
June 3, 2015 IRWD A 16,556 — — 46,270 Direct +55.72% Acquired (price as of 2026-08-20)
March 13, 2015 IRWD A 165 — — 29,714 Direct +0.56% Acquired (price as of 2026-08-20)
Dec. 15, 2014 IRWD A 182 — — 29,549 Direct +0.62% Acquired (price as of 2026-08-20)
Sept. 15, 2014 IRWD A 198 — — 29,367 Direct +0.68% Acquired (price as of 2026-08-20)
June 13, 2014 IRWD A 52 — — 29,169 Direct +0.18% Acquired (price as of 2026-08-20)
June 3, 2014 IRWD A 19,778 — — 29,117 Direct +211.78% Acquired (price as of 2026-08-20)
Jan. 2, 2014 IRWD A 9,339 — — 9,339 Direct — Acquired (price as of 2026-08-20)
May 7, 2013 IRWD G 55,000 — — 303,026 Direct -15.36% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 15,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 $4.89 $48,900 358,026 Direct +2.87% Acquired 3.5% (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 $4.33 $43,300 348,026 Direct +2.96% Acquired 16.9% (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 $3.76 $37,600 338,026 Direct +3.05% Acquired 34.6% (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 $1.56 $15,600 328,026 Direct +3.14% Acquired 224.5% (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 $0.60 $6,000 318,026 Direct +3.25% Acquired 743.8% (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 $0.60 $6,000 308,026 Direct +3.36% Acquired 743.8% (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 15,000 $0.60 $9,000 298,026 Direct +5.30% Acquired 743.8% (price as of 2026-08-20)
Nov. 7, 2012 IRWD M 10,000 $0.60 $6,000 283,026 Direct +3.66% Acquired 743.8% (price as of 2026-08-20)
Jan. 13, 2012 IRWD M 6,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Jan. 13, 2012 IRWD M 6,000 $0.31 $1,860 273,026 Direct +2.25% Acquired 1533.1% (price as of 2026-08-20)
Feb. 9, 2011 IRWD M 6,000 $0.31 $1,860 267,026 Direct +2.30% Acquired 1533.1% (price as of 2026-08-20)
Feb. 9, 2011 IRWD M 6,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)
Feb. 2, 2010 IRWD M 6,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
Nov. 7, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (10,000) $4.89 Feb. 11, 2019 10,000 Disposed
Nov. 7, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (10,000) $4.33 April 29, 2018 10,000 Disposed
Nov. 7, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (10,000) $3.76 Jan. 31, 2018 10,000 Disposed
Nov. 7, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (10,000) $1.56 July 24, 2016 10,000 Disposed
Nov. 7, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (10,000) $0.60 July 22, 2014 10,000 Disposed
Nov. 7, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (10,000) $0.60 July 22, 2014 10,000 Disposed
Nov. 7, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (15,000) $0.60 July 15, 2013 15,000 Disposed
Nov. 7, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (10,000) $0.60 July 15, 2013 10,000 Disposed
Jan. 13, 2012 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (6,000) $0.31 Feb. 11, 2012 6,000 Disposed
Feb. 9, 2011 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (6,000) $0.31 Feb. 12, 2011 6,000 Disposed
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy) Class B Common Stock (6,000) $0.10 May 2, 2010 6,000 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 12 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Feb. 2, 2010 IRWD Class B Common Stock 261,026 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (6,000) 6,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (6,000) 6,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (6,000) 6,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (10,000) 10,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (15,000) 15,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (10,000) 10,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (10,000) 10,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (10,000) 10,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (10,000) 10,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (10,000) 10,000 Direct
Feb. 2, 2010 IRWD Employee Stock Option (Right to Buy)→ Class B Common Stock (10,000) 10,000 Direct