Citadel Advisors’s Inspire Medical Systems INSP Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $1.04M | Sell |
23,300
-4,900
| -17% | -$232K | ﹤0.01% | 8103 |
|
|
2026
Q1 | $1.45M | Buy |
28,200
+12,400
| +78% | +$868K | ﹤0.01% | 6784 |
|
|
2025
Q4 | $1.46M | Sell |
15,800
-14,800
| -48% | -$1.42M | ﹤0.01% | 6575 |
|
|
2025
Q3 | $2.27M | Buy |
30,600
+8,500
| +38% | +$861K | ﹤0.01% | 5825 |
|
|
2025
Q2 | $2.87M | Sell |
22,100
-22,500
| -50% | -$3.26M | ﹤0.01% | 5046 |
|
|
2025
Q1 | $7.1M | Sell |
44,600
-3,900
| -8% | -$706K | ﹤0.01% | 3348 |
|
|
2024
Q4 | $8.99M | Sell |
48,500
-38,500
| -44% | -$7.47M | ﹤0.01% | 3121 |
|
|
2024
Q3 | $18.4M | Sell |
87,000
-25,500
| -23% | -$4.43M | ﹤0.01% | 2138 |
|
|
2024
Q2 | $15.1M | Buy |
112,500
+7,600
| +7% | +$1.44M | ﹤0.01% | 2311 |
|
|
2024
Q1 | $22.5M | Buy |
104,900
+32,400
| +45% | +$6.35M | ﹤0.01% | 1947 |
|
|
2023
Q4 | $14.7M | Sell |
72,500
-30,200
| -29% | -$4.89M | ﹤0.01% | 2362 |
|
|
2023
Q3 | $20.4M | Buy |
102,700
+45,600
| +80% | +$11.5M | ﹤0.01% | 1831 |
|
|
2023
Q2 | $18.5M | Buy |
57,100
+15,500
| +37% | +$4.43M | ﹤0.01% | 1966 |
|
|
2023
Q1 | $9.74M | Sell |
41,600
-61,000
| -59% | -$15.4M | ﹤0.01% | 2851 |
|
|
2022
Q4 | $25.8M | Buy |
102,600
+41,600
| +68% | +$8.87M | 0.01% | 1695 |
|
|
2022
Q3 | $10.8M | Buy |
61,000
+11,800
| +24% | +$2.37M | ﹤0.01% | 2651 |
|
|
2022
Q2 | $8.99M | Buy |
49,200
+1,700
| +4% | +$339K | ﹤0.01% | 2833 |
|
|
2022
Q1 | $12.2M | Buy |
47,500
+13,700
| +41% | +$3.13M | ﹤0.01% | 2656 |
|
|
2021
Q4 | $7.78M | Buy |
33,800
+14,600
| +76% | +$3.56M | ﹤0.01% | 3506 |
|
|
2021
Q3 | $4.47M | Buy |
19,200
+7,700
| +67% | +$1.61M | ﹤0.01% | 4524 |
|
|
2021
Q2 | $2.22M | Sell |
11,500
-600
| -5% | -$119K | ﹤0.01% | 6330 |
|
|
2021
Q1 | $2.5M | Sell |
12,100
-9,100
| -43% | -$1.93M | ﹤0.01% | 5872 |
|
|
2020
Q4 | $3.99M | Sell |
21,200
-14,400
| -40% | -$2.35M | ﹤0.01% | 4072 |
|
|
2020
Q3 | $4.59M | Buy |
35,600
+19,400
| +120% | +$2.14M | ﹤0.01% | 3285 |
|
|
2020
Q2 | $1.41M | Buy |
16,200
+9,000
| +125% | +$692K | ﹤0.01% | 5194 |
|
|
2020
Q1 | $434K | Sell |
7,200
-300
| -4% | -$22.2K | ﹤0.01% | 6704 |
|
|
2019
Q4 | $557K | Sell |
7,500
-11,000
| -59% | -$707K | ﹤0.01% | 6642 |
|
|
2019
Q3 | $1.13M | Buy |
18,500
+7,500
| +68% | +$494K | ﹤0.01% | 5388 |
|
|
2019
Q2 | $667K | Buy |
+11,000
| New | +$593K | ﹤0.01% | 6355 |
|
|
2019
Q1 | – | Sell |
-5,800
| Closed | -$245K | – | 9564 |
|
|
2018
Q4 | $245K | Buy |
+5,800
| New | +$247K | ﹤0.01% | 7582 |
|
Other funds holding INSP
SCM
DM
Citadel Advisors's INSP Position: Q2 2026 in Review
Citadel Advisors increased its Inspire Medical Systems (INSP) stake by 28% in Q2 2026, buying an estimated $5.32M and bringing the position to 506,334 shares worth $22.6M. The position accounts for ﹤0.01% of the portfolio, ranked #2410.
Citadel Advisors first reported a position in INSP in Q2 2018 and has held it in 33 quarters since. The position peaked at $159M in Q4 2022. 275 funds tracked by Wall St. Rank hold INSP as of Q2 2026.
- Citadel Advisors held 506,334 shares of Inspire Medical Systems worth $22.6M as of Q2 2026.
- Citadel Advisors bought 112,258 Inspire Medical Systems shares in Q2 2026, an estimated $5.32M.
- Inspire Medical Systems made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #2410 holding.
- Citadel Advisors first reported a position in Inspire Medical Systems in Q2 2018 and has held it in 33 quarters since.
- Citadel Advisors's Inspire Medical Systems position peaked at $159M in Q4 2022.
- 275 funds tracked by Wall St. Rank held Inspire Medical Systems as of Q2 2026.
Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.