Spruce Street Capital LP: ALKERMES PLC (ALKS): Quarterly 13F Position History
As of Q2 2026, Spruce Street Capital LP reported 543,876 shares of ALKERMES PLC (ALKS), worth $28.5M and representing 5.6% of its 13F equity book. Quarter-over-quarter share count change: + 225,884 (+71.0%) . The position first appeared in Q1 2026 and has been disclosed across 2 13F-HR filings in Pactolio's tracked window.
- 543,876Shares Held (Latest Filing)
- $28.5MReported Market Value (Latest Filing)
- 5.6%Portfolio Weight (% of 13F Equity Book)
- +225,884Quarter-over-Quarter Share Change
- +$17.3MQuarter-over-Quarter Value Change
- 543,876Peak Reported Shares (Historical)
Recent initiation: Spruce Street Capital LP first reported ALKS on the Q1 2026 filing, so fewer than three quarters of history are available.
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 2 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 543,876 | +225,884 | +71.0% | $28.5M | 5.6% | $52.4 |
| Q1 2026 | 317,992 | – | – | $11.2M | 2.7% | $35.4 |
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 Spruce Street Capital LP first disclose a ALKS position in 13F-HR filings?
Spruce Street Capital LP first reported ALKERMES PLC (ALKS) on its 13F-HR filing for the period ending 2026-03-31 (Q1 2026). The position has appeared on 2 reported quarters within Pactolio's tracked window.
What was Spruce Street Capital LP's most recent quarter-over-quarter share-count change in ALKS?
Between Q1 2026 and Q2 2026, Spruce Street Capital LP added 225,884 shares of ALKS (+71.0%), bringing the total reported position to 543,876 shares at a market value of $28.5M.
Does the implied price-per-share represent Spruce Street Capital LP's cost basis in ALKS?
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.