MASON CAPITAL MANAGEMENT LLC: BROOKDALE SENIOR LIVING INC (BKD): Quarterly 13F Position History
As of Q2 2026, MASON CAPITAL MANAGEMENT LLC reported 2,575,826 shares of BROOKDALE SENIOR LIVING INC (BKD), worth $41.4M and representing 6.8% of its 13F equity book. Quarter-over-quarter share count change: + 342,085 (+15.3%) . The position first appeared in Q3 2025 and has been disclosed across 4 13F-HR filings in Pactolio's tracked window.
- 2,575,826Shares Held (Latest Filing)
- $41.4MReported Market Value (Latest Filing)
- 6.8%Portfolio Weight (% of 13F Equity Book)
- +342,085Quarter-over-Quarter Share Change
- +$10.9MQuarter-over-Quarter Value Change
- 3,585,941Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 4 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 2,575,826 | +342,085 | +15.3% | $41.4M | 6.8% | $16.1 |
| Q1 2026 | 2,233,741 | 1,352,200 | -37.7% | $30.6M | 5.0% | $13.7 |
| Q4 2025 | 3,585,941 | +1,109,977 | +44.8% | $38.7M | 6.9% | $10.8 |
| Q3 2025 | 2,475,964 | – | – | $21.0M | 4.3% | $8.5 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares, a quarter-end mark rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did MASON CAPITAL MANAGEMENT LLC first disclose a BKD position in 13F-HR filings?
MASON CAPITAL MANAGEMENT LLC first reported BROOKDALE SENIOR LIVING INC (BKD) on its 13F-HR filing for the period ending 2025-09-30 (Q3 2025). The position has appeared on 4 reported quarters within Pactolio's tracked window.
What was MASON CAPITAL MANAGEMENT LLC's most recent quarter-over-quarter share-count change in BKD?
Between Q1 2026 and Q2 2026, MASON CAPITAL MANAGEMENT LLC added 342,085 shares of BKD (+15.3%), bringing the total reported position to 2,575,826 shares at a market value of $41.4M.
Does the implied price-per-share represent MASON CAPITAL MANAGEMENT LLC's cost basis in BKD?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.