Madison Avenue Partners, LP: STAAR SURGICAL CO (STAA): Quarterly 13F Position History
As of Q2 2026, Madison Avenue Partners, LP reported 4,175,748 shares of STAAR SURGICAL CO (STAA), worth $119.8M and representing 5.2% of its 13F equity book. Quarter-over-quarter share count change: + 1,734,070 (+71.0%) . The position first appeared in Q1 2026 and has been disclosed across 2 13F-HR filings in Pactolio's tracked window.
- 4,175,748Shares Held (Latest Filing)
- $119.8MReported Market Value (Latest Filing)
- 5.2%Portfolio Weight (% of 13F Equity Book)
- +1,734,070Quarter-over-Quarter Share Change
- +$74.1MQuarter-over-Quarter Value Change
- 4,175,748Peak Reported Shares (Historical)
Recent initiation: Madison Avenue Partners, LP first reported STAA 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 | 4,175,748 | +1,734,070 | +71.0% | $119.8M | 5.2% | $28.7 |
| Q1 2026 | 2,441,678 | – | – | $45.7M | 2.0% | $18.7 |
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 Madison Avenue Partners, LP first disclose a STAA position in 13F-HR filings?
Madison Avenue Partners, LP first reported STAAR SURGICAL CO (STAA) 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 Madison Avenue Partners, LP's most recent quarter-over-quarter share-count change in STAA?
Between Q1 2026 and Q2 2026, Madison Avenue Partners, LP added 1,734,070 shares of STAA (+71.0%), bringing the total reported position to 4,175,748 shares at a market value of $119.8M.
Does the implied price-per-share represent Madison Avenue Partners, LP's cost basis in STAA?
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.