Blue Grotto Capital, LLC: MKS INC. (MKSI): Quarterly 13F Position History
As of Q2 2026, Blue Grotto Capital, LLC reported 149,422 shares of MKS INC. (MKSI), worth $66.5M and representing 5.5% of its 13F equity book. Quarter-over-quarter share count change: 225,578 (-60.2%) . The position first appeared in Q1 2024 and has been disclosed across 10 13F-HR filings in Pactolio's tracked window.
- 149,422Shares Held (Latest Filing)
- $66.5MReported Market Value (Latest Filing)
- 5.5%Portfolio Weight (% of 13F Equity Book)
- 225,578Quarter-over-Quarter Share Change
- -$19.7MQuarter-over-Quarter Value Change
- 415,500Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 10 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 149,422 | 225,578 | -60.2% | $66.5M | 5.5% | $444.8 |
| Q1 2026 | 375,000 | 40,500 | -9.7% | $86.2M | 9.9% | $229.8 |
| Q4 2025 | 415,500 | +203,652 | +96.1% | $66.4M | 6.8% | $159.8 |
| Q3 2025 | 211,848 | +24,697 | +13.2% | $26.2M | 3.0% | $123.8 |
| Q2 2025 | 187,151 | 168,070 | -47.3% | $18.6M | 2.2% | $99.4 |
| Q1 2025 | 355,221 | +269,227 | +313.1% | $28.5M | 5.4% | $80.2 |
| Q4 2024 | 85,994 | 14,007 | -14.0% | $9.0M | 1.6% | $104.4 |
| Q3 2024 | 100,001 | +5,001 | +5.3% | $10.9M | 2.0% | $108.7 |
| Q2 2024 | 95,000 | 20,000 | -17.4% | $12.4M | 2.5% | $130.6 |
| Q1 2024 | 115,000 | – | – | $15.3M | 3.1% | $133.0 |
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 Blue Grotto Capital, LLC first disclose a MKSI position in 13F-HR filings?
Blue Grotto Capital, LLC first reported MKS INC. (MKSI) on its 13F-HR filing for the period ending 2024-03-31 (Q1 2024). The position has appeared on 10 reported quarters within Pactolio's tracked window.
What was Blue Grotto Capital, LLC's most recent quarter-over-quarter share-count change in MKSI?
Between Q1 2026 and Q2 2026, Blue Grotto Capital, LLC reduced its MKSI position by 225,578 shares (-60.2%), leaving 149,422 shares at a market value of $66.5M.
Does the implied price-per-share represent Blue Grotto Capital, LLC's cost basis in MKSI?
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.