Institutional Manager · CIK 0001841544

Foster Group, Inc.

WEST DES MOINES, IA · File #028-20451

Latest AUM

$3.31B

Positions

300

Top-10 Concentration

56.2%

Filings

Portfolio Value Over Time

2024-03

2024-06

2024-09

2024-12

2025-03

2025-06

2025-09

2025-12

Biggest QoQ Changes

Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.

Action	Issuer	Ticker / CUSIP	Δ Shares	Flow ($)	Price Effect
ADD	VANGUARD SCOTTSDALE FDS	92206C706	+132,043	+$7.9M	-$233,876
ADD	VANGUARD BD INDEX FDS	921937835	+97,790	+$7.2M	-$664,466
REDUCE	DIMENSIONAL ETF TRUST	25434V807	-140,989	-$7.0M	+$12.3M
ADD	ISHARES TR	464288414	+49,650	+$5.3M	+$273,935
ADD	ISHARES TR	464287200	+6,623	+$4.5M	+$1.3M
ADD	VANGUARD INDEX FDS	922908769	+13,248	+$4.4M	+$9.4M
ADD	ISHARES TR	464287663	+41,431	+$4.2M	+$2.7M
ADD	ISHARES TR	46434V878	+80,699	+$4.1M	-$164,647
ADD	DIMENSIONAL ETF TRUST	25434V831	+106,711	+$4.1M	+$745,435
ADD	ISHARES TR	46432F339	+19,030	+$3.8M	+$2.9M

Sector Allocation

Technology

2.3%$74.9M

Financials

1.4%$47.4M

Industrials

0.4%$14.6M

Consumer Discretionary

0.4%$13.1M

Healthcare

0.3%$10.3M

Communication Services

0.2%$8.2M

0.2%$8.1M

0.1%$5.2M

0.1%$3.9M

0.0%$524,565

0.0%$354,525

Filing History

Jan 12, 202613F HOLDINGS REPORTQ/E Dec 2025300 pos · $3.31B
Oct 14, 202513F HOLDINGS REPORTQ/E Sep 2025268 pos · $3.19B
Jul 14, 202513F HOLDINGS REPORTQ/E Jun 2025264 pos · $2.92B
Apr 11, 202513F HOLDINGS REPORTQ/E Mar 2025224 pos · $2.67B
Jan 23, 202513F HOLDINGS REPORTQ/E Dec 2024198 pos · $2.62B
Oct 7, 202413F HOLDINGS REPORTQ/E Sep 2024203 pos · $2.68B
Jul 30, 202413F HOLDINGS REPORTQ/E Jun 2024196 pos · $2.54B
Apr 9, 202413F HOLDINGS REPORTQ/E Mar 2024198 pos · $2.01B
Oct 27, 202313F HOLDINGS REPORTQ/E Dec 2023168 pos · $1.64B

Top 20 Holdings — Dec 2025

#	Issuer	Ticker	Shares	Value	% of Portfolio
1	VANGUARD INDEX FDS	922908769	1,343,296	$450.4M	14.54%
2	VANGUARD TAX-MANAGED FDS	921943858	2,799,343	$174.9M	5.64%
3	VANGUARD BD INDEX FDS	921937835	2,312,615	$171.3M	5.53%
4	DIMENSIONAL ETF TRUST	25434V807	3,102,581	$154.8M	5.00%
5	VANGUARD SCOTTSDALE FDS	92206C706	2,470,628	$148.1M	4.78%
6	ISHARES TR	46432F339	719,725	$143.0M	4.61%
7	DIMENSIONAL ETF TRUST	25434V666	4,143,117	$141.7M	4.57%
8	DIMENSIONAL ETF TRUST	25434V302	3,931,073	$128.0M	4.13%
9	VANGUARD INDEX FDS	922908744	612,092	$116.9M	3.77%
10	DIMENSIONAL ETF TRUST	25434V831	2,973,774	$113.1M	3.65%
11	ISHARES TR	464287663	1,080,840	$110.8M	3.58%
12	ISHARES TR	46432F396	308,335	$77.2M	2.49%
13	AMERICAN CENTY ETF TR	025072877	727,174	$74.2M	2.39%
14	DIMENSIONAL ETF TRUST	25434V401	964,558	$71.5M	2.31%
15	DIMENSIONAL ETF TRUST	25434V849	1,465,775	$70.6M	2.28%
16	ISHARES TR	46435G326	778,071	$64.2M	2.07%
17	ISHARES TR	464287200	92,756	$63.5M	2.05%
18	DIMENSIONAL ETF TRUST	25434V724	1,281,493	$59.7M	1.93%
19	DIMENSIONAL ETF TRUST	25434V765	1,696,758	$53.7M	1.73%
20	ISHARES TR	46434V878	1,049,330	$53.1M	1.71%