CSTK additions & removals
Changes are observation-bounded: an addition is the first retained official snapshot containing a security after an earlier absence; a removal is its first retained absence. Baseline holdings receive no invented addition date.
Additions
| Ticker | Issuer | Observed date | Change |
|---|
| Occidental Petroleum Corp. | Occidental Petroleum Corp. | 2026-04-30 | Added / first present |
|---|
| TransUnion | TransUnion | 2026-04-30 | Added / first present |
|---|
| Regeneron Pharmaceuticals, Inc. | Regeneron Pharmaceuticals, Inc. | 2026-04-30 | Added / first present |
|---|
| Devon Energy Corp. | Devon Energy Corp. | 2026-04-30 | Added / first present |
|---|
| AstraZeneca PLC | AstraZeneca PLC | 2026-04-30 | Added / first present |
|---|
Removals
| Ticker | Issuer | Observed date | Change |
|---|
| Comcast Corp. | Comcast Corp. | 2026-04-30 | Removed / first absent |
|---|
| Bristol-Myers Squibb Co. | Bristol-Myers Squibb Co. | 2026-04-30 | Removed / first absent |
|---|
| Kimberly-Clark Corp. | Kimberly-Clark Corp. | 2026-04-30 | Removed / first absent |
|---|
| Sysco Corp. | Sysco Corp. | 2026-04-30 | Removed / first absent |
|---|
| Humana Inc. | Humana Inc. | 2026-04-30 | Removed / first absent |
|---|