Mason Street Advisors’s iShares Core US Aggregate Bond ETF AGG Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $303M | Sell |
3,049,263
-57,967
| -2% | -$5.8M | 29.58% | 1 |
|
|
2025
Q4 | $310M | Buy |
3,107,230
+67,900
| +2% | +$6.81M | 30.54% | 1 |
|
|
2025
Q3 | $305M | Buy |
3,039,330
+246,936
| +9% | +$24.5M | 31.58% | 1 |
|
|
2025
Q2 | $277M | Buy |
2,792,394
+247,294
| +10% | +$24.2M | 32.42% | 1 |
|
|
2025
Q1 | $252M | Sell |
2,545,100
-30,700
| -1% | -$3M | 32.03% | 1 |
|
|
2024
Q4 | $250M | Buy |
2,575,800
+54,200
| +2% | +$5.34M | 32.31% | 1 |
|
|
2024
Q3 | $255M | Buy |
2,521,600
+67,300
| +3% | +$6.71M | 31.01% | 1 |
|
|
2024
Q2 | $238M | Buy |
2,454,300
+1,048,000
| +75% | +$101M | 32.06% | 1 |
|
|
2024
Q1 | $138M | Buy |
1,406,300
+221,800
| +19% | +$21.7M | 23.18% | 2 |
|
|
2023
Q4 | $118M | Buy |
1,184,500
+4,000
| +0.3% | +$381K | 21.58% | 2 |
|
|
2023
Q3 | $111M | Buy |
1,180,500
+211,100
| +22% | +$20.3M | 21.32% | 2 |
|
|
2023
Q2 | $95M | Buy |
969,400
+343,800
| +55% | +$34M | 17.67% | 2 |
|
|
2023
Q1 | $62.3M | Buy |
625,600
+90,600
| +17% | +$8.95M | 13.78% | 2 |
|
|
2022
Q4 | $51.9M | Buy |
535,000
+512,700
| +2,299% | +$49.6M | 12.9% | 2 |
|
|
2022
Q3 | $2.15M | Sell |
22,300
-63,600
| -74% | -$6.43M | 0.62% | 9 |
|
|
2022
Q2 | $8.73M | Sell |
85,900
-138,500
| -62% | -$14.2M | 3.06% | 9 |
|
|
2022
Q1 | $24M | Buy |
224,400
+33,400
| +17% | +$3.68M | 14.16% | 3 |
|
|
2021
Q4 | $21.8M | Buy |
191,000
+14,600
| +8% | +$1.67M | 15.83% | 3 |
|
|
2021
Q3 | $20.3M | Buy |
176,400
+56,300
| +47% | +$6.53M | 15.11% | 3 |
|
|
2021
Q2 | $13.9M | Buy |
120,100
+17,500
| +17% | +$2.01M | 12.46% | 4 |
|
|
2021
Q1 | $11.7M | Buy |
102,600
+5,500
| +6% | +$637K | 10.26% | 5 |
|
|
2020
Q4 | $11.5M | Sell |
97,100
-71,000
| -42% | -$8.36M | 0.19% | 88 |
|
|
2020
Q3 | $19.8M | Sell |
168,100
-294,585
| -64% | -$34.9M | 0.39% | 42 |
|
|
2020
Q2 | $54.7M | Buy |
462,685
+106,230
| +30% | +$12.4M | 1.1% | 7 |
|
|
2020
Q1 | $41.1M | Buy |
356,455
+63,500
| +22% | +$7.24M | 0.94% | 12 |
|
|
2019
Q4 | $32.9M | Buy |
292,955
+34,540
| +13% | +$3.89M | 0.63% | 22 |
|
|
2019
Q3 | $29.2M | Sell |
258,415
-97,500
| -27% | -$11M | 0.6% | 27 |
|
|
2019
Q2 | $39.6M | Sell |
355,915
-55,170
| -13% | -$6.03M | 0.83% | 12 |
|
|
2019
Q1 | $44.8M | Buy |
411,085
+138,200
| +51% | +$14.8M | 0.91% | 12 |
|
|
2018
Q4 | $29.1M | Sell |
272,885
-326,450
| -54% | -$34.2M | 0.71% | 22 |
|
|
2018
Q3 | $63.2M | Sell |
599,335
-6,925
| -1% | -$735K | 1.31% | 4 |
|
|
2018
Q2 | $64.5M | Buy |
606,260
+125,630
| +26% | +$13.3M | 1.41% | 5 |
|
|
2018
Q1 | $51.5M | Buy |
480,630
+163,750
| +52% | +$17.6M | 1.18% | 7 |
|
|
2017
Q4 | $34.6M | Sell |
316,880
-120,170
| -27% | -$13.1M | 0.78% | 13 |
|
|
2017
Q3 | $47.9M | Buy |
437,050
+170,800
| +64% | +$18.7M | 1.14% | 8 |
|
|
2017
Q2 | $29.2M | Sell |
266,250
-350
| -0.1% | -$38.3K | 0.73% | 16 |
|
|
2017
Q1 | $28.9M | Buy |
+266,600
| New | +$28.8M | 0.74% | 16 |
|
Other funds holding AGG
Mason Street Advisors's AGG Position: Q1 2026 in Review
Mason Street Advisors reduced its iShares Core US Aggregate Bond ETF (AGG) stake by 1.9% in Q1 2026, selling an estimated $5.8M and leaving 3,049,263 shares worth $303M. The position accounts for 29.58% of the portfolio, ranked #1.
Mason Street Advisors first reported a position in AGG in Q1 2017 and has held it in 37 quarters since. The position peaked at $310M in Q4 2025. 2,074 funds tracked by Wall St. Rank hold AGG as of Q1 2026.
- Mason Street Advisors held 3,049,263 shares of iShares Core US Aggregate Bond ETF worth $303M as of Q1 2026.
- Mason Street Advisors sold 57,967 iShares Core US Aggregate Bond ETF shares in Q1 2026, an estimated $5.8M.
- iShares Core US Aggregate Bond ETF made up 29.58% of Mason Street Advisors's portfolio in Q1 2026, its #1 holding.
- Mason Street Advisors first reported a position in iShares Core US Aggregate Bond ETF in Q1 2017 and has held it in 37 quarters since.
- Mason Street Advisors's iShares Core US Aggregate Bond ETF position peaked at $310M in Q4 2025.
- 2,074 funds tracked by Wall St. Rank held iShares Core US Aggregate Bond ETF as of Q1 2026.
Based on Mason Street Advisors's 13F filing for Q1 2026, filed 7 May 2026.