Peter Barton Hutt

Insider

First SEC filing: May 22, 2017 · Latest: May 22, 2017

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 19 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

19 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 20, 2019	MRNA	M	200,000	—	—	502,752 Direct	-28.46%	Disposed	(price as of 2026-08-19)
Nov. 20, 2019	MRNA	S	200,000	$20.18	$4,036,000	3,924 Direct	-98.08%	Disposed	568.6% (price as of 2026-08-19)
Nov. 20, 2019	MRNA	M	200,000	$0.04	$8,000	203,924 Direct	+5096.84%	Acquired	337200.0% (price as of 2026-08-19)
Sept. 17, 2019	MRNA	M	100,000	—	—	702,752 Direct	-12.46%	Disposed	(price as of 2026-08-19)
Sept. 17, 2019	MRNA	S	100,000	$17.63	$1,763,000	3,924 Direct	-96.22%	Disposed	665.3% (price as of 2026-08-19)
Sept. 17, 2019	MRNA	M	100,000	$0.04	$4,000	103,924 Direct	+2548.42%	Acquired	337200.0% (price as of 2026-08-19)
June 27, 2019	MRNA	A	54,660	—	—	54,660 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 10, 2017	XOMA	A	8,000	—	—	8,000 Direct	—	Acquired
July 21, 2016	XOMA	A	121,064	—	—	121,064 Direct	—	Acquired
June 15, 2016	MCRB	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
June 25, 2015	MCRB	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
May 21, 2015	XOMA	A	73,746	$3.39	$249,999	73,746 Direct	—	Acquired
Feb. 3, 2015	DCOY	C	11,675	—	—	11,675 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 3, 2015	DCOY	C	50,000	—	—	0 Direct	—	Acquired	(price as of 2026-08-19)
Sept. 12, 2014	XOMA	A	12,500	$4.73	$59,125	12,500 Direct	—	Acquired
May 22, 2014	XOMA	A	20,000	$3.87	$77,400	20,000 Direct	—	Acquired
May 13, 2008	XOMA	A	25,000	—	—	25,000 Direct	—	Acquired
Feb. 21, 2008	XOMA	A	93,600	—	—	93,600 Direct	—	Acquired
Feb. 21, 2008	XOMA	A	93,600	—	—	93,600 Direct	—	Acquired
May 22, 2007	XOMA	A	12,000	—	—	12,000 Direct	—	Acquired
May 23, 2006	XOMA	A	10,000	—	—	10,000 Direct	—	Acquired

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. 20, 2019	MRNA	Stock Option (Right to Buy)	Common Stock (200,000)	$0.04	March 27, 2022	200,000	Disposed
Sept. 17, 2019	MRNA	Stock Option (Right to Buy)	Common Stock (100,000)	$0.04	March 27, 2022	100,000	Disposed
June 27, 2019	MRNA	Stock Option (Right to Buy)	Common Stock (54,660)	$14.34	June 27, 2029	54,660	Acquired
Feb. 10, 2017	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (8,000)	$4.03	Feb. 10, 2027	8,000	Acquired
July 21, 2016	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (121,064)	$0.56	July 21, 2026	121,064	Acquired
June 15, 2016	MCRB	Stock Option (right to buy)	Common Stock (15,000)	$30.24	June 14, 2026	15,000	Acquired
June 25, 2015	MCRB	Stock Option (right to buy)	Common Stock (15,000)	$18.00	June 24, 2025	15,000	Acquired
May 21, 2015	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (73,746)	$3.39	May 21, 2025	73,746	Acquired
Feb. 3, 2015	DCOY	Series A Preferred Stock	Common Stock (50,000)	$0.00	—	50,000	Acquired
Sept. 12, 2014	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (12,500)	$4.73	Sept. 12, 2024	12,500	Acquired
May 22, 2014	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (20,000)	$3.87	May 22, 2024	20,000	Acquired
May 13, 2008	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (25,000)	$2.10	May 13, 2018	25,000	Acquired
Feb. 21, 2008	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (93,600)	$2.71	Feb. 21, 2018	93,600	Acquired
Feb. 21, 2008	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (93,600)	$2.71	Feb. 21, 2018	93,600	Acquired
May 22, 2007	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (12,000)	$3.42	May 22, 2017	12,000	Acquired
May 23, 2006	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (10,000)	$1.70	May 23, 2016	10,000	Acquired

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

Initial ownership (Form 3) 17 holdings

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

Date	Ticker	Security	Shares	Ownership
Dec. 7, 2018	MRNA	Common Stock	3,924	Direct
Dec. 7, 2018	MRNA	Stock Option (Right to Buy)→ Common Stock (802,752)	802,752	Direct
Dec. 7, 2018	MRNA	Stock Option (Right to Buy)→ Common Stock (23,853)	23,853	Direct
Dec. 7, 2018	MRNA	Stock Option (Right to Buy)→ Common Stock (9,263)	9,263	Direct
Dec. 7, 2018	MRNA	Stock Option (Right to Buy)→ Common Stock (42,201)	42,201	Direct
Dec. 7, 2018	MRNA	Stock Option (Right to Buy)→ Common Stock (40,307)	40,307	Direct
June 21, 2016	RNAC	Stock Option (right to buy)→ Common Stock (20,512)	20,512	Direct
June 21, 2016	RNAC	Stock Option (right to buy)→ Common Stock (24,358)	24,358	Direct
June 25, 2015	MCRB	Common Stock	50,000	Direct
June 25, 2015	MCRB	Stock Option (right to buy)→ Common Stock (50,000)	50,000	Direct
Jan. 30, 2015	DCOY	Stock Option (right to buy)→ Common Stock (28,021)	28,021	Direct
Jan. 30, 2015	DCOY	Stock Option (right to buy)→ Common Stock (7,005)	7,005	Direct
Jan. 30, 2015	DCOY	Series A Preferred Stock→ Common Stock (50,000)	50,000	Direct
Jan. 28, 2015	DCOY	Stock Option (right to buy)→ Common Stock (28,021)	28,021	Direct
Jan. 28, 2015	DCOY	Stock Option (right to buy)→ Common Stock (7,005)	7,005	Direct
Jan. 28, 2015	DCOY	Series A Preferred Stock→ Common Stock (50,000)	50,000	Direct
May 23, 2005	XOMA	Non-Qualified Share Option (right to buy)→ Common Shares (20,000)	20,000	Direct