OmniAb Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGM:OABI Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
22 Mar 24	BuyUS$1,167,750	Matthew Foehr	Individual	225,000	US$5.19
12 Dec 23	BuyUS$1,010,000	Matthew Foehr	Individual	200,000	US$5.05
10 Nov 23	BuyUS$405,517	Matthew Foehr	Individual	95,000	US$4.27
14 Aug 23	BuyUS$246,600	Matthew Foehr	Individual	45,000	US$5.48
09 Jun 23	BuyUS$519,800	Matthew Foehr	Individual	115,000	US$4.52
12 May 23	BuyUS$1,496,000	Matthew Foehr	Individual	440,000	US$3.40

Insider Trading Volume

Insider Buying: OABI insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of OABI?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	20,596	0.0176%
Individual Insiders	6,116,321	5.22%
VC/PE Firms	15,817,934	13.5%
General Public	24,600,198	21%
Institutions	70,570,997	60.3%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 68.96% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
13.5%	Avista Capital Holdings, L.P.	15,817,934	US$76.2m	0%	100.0%
6.64%	Janus Henderson Group plc	7,777,897	US$37.5m	1.26%	0.02%
6.22%	BlackRock, Inc.	7,287,819	US$35.1m	7.7%	no data
4.83%	The Vanguard Group, Inc.	5,651,408	US$27.2m	2.83%	no data
3.05%	Macquarie Investment Management Business Trust	3,568,230	US$17.2m	-8.49%	0.02%
2.89%	William Blair Investment Management, LLC	3,386,601	US$16.3m	16.3%	0.02%
2.73%	Chicago Capital, LLC	3,194,473	US$15.4m	-0.04%	0.54%
2.71%	Matthew Foehr	3,170,397	US$15.3m	19.8%	no data
2.43%	Rubric Capital Management LP	2,850,588	US$13.7m	0%	0.47%
2.32%	Rice Hall James & Associates, LLC	2,712,644	US$13.1m	-2.45%	0.82%
2.25%	Private Management Group Inc	2,639,651	US$12.7m	-1.22%	0.52%
2.24%	Dimensional Fund Advisors LP	2,623,995	US$12.6m	12.6%	no data
2.01%	John Higgins	2,352,625	US$11.3m	25.3%	no data
1.94%	Millennium Management LLC	2,276,418	US$11.0m	-40.1%	0.01%
1.84%	St. Denis J. Villere & Co., LLC	2,151,769	US$10.4m	-3.35%	0.93%
1.84%	Geode Capital Management, LLC	2,151,555	US$10.4m	3.58%	no data
1.72%	State Street Global Advisors, Inc.	2,009,408	US$9.7m	-2.97%	no data
1.41%	First Sabrepoint Capital Management LP	1,657,173	US$8.0m	14.4%	3.79%
1.16%	Orchard Capital Management, LLC	1,358,028	US$6.5m	6.08%	2.05%
1.15%	Medical Strategy GmbH, Asset Management Arm	1,352,210	US$6.5m	-0.46%	0.41%
1.04%	Kornitzer Capital Management, Inc.	1,219,955	US$5.9m	-29.5%	0.1%
0.93%	Knott Partners Management, LLC	1,086,505	US$5.2m	0%	1.93%
0.75%	Northern Trust Global Investments	873,432	US$4.2m	-1.23%	no data
0.72%	Impax Asset Management Group Plc	848,184	US$4.1m	-26.1%	0.01%
0.64%	Charles Schwab Investment Management, Inc.	751,496	US$3.6m	0%	no data