Ownership

Who owns SpyGlass Pharma, Inc., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).

Stakes over 5%

Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.

RA Capital Management, L.P., Peter Kolchinsky, Rajeev Shah February 17, 2026

RA Capital Management, L.P.: 24.1% · 8,022,639 shares — Peter Kolchinsky: 24.1% · 8,022,639 shares — Rajeev Shah: 24.1% · 8,022,639 shares

View filing (SCHEDULE 13D)

Samsara BioCapital, L.P., Samsara BioCapital GP, LLC, Samsara Opportunity Fund, L.P. February 17, 2026

Samsara BioCapital, L.P.: 4.5% · 1,484,953 shares — Samsara BioCapital GP, LLC: 4.5% · 1,484,953 shares — Samsara Opportunity Fund, L.P.: 1.9% · 625,000 shares

View filing (SCHEDULE 13G)

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Super investors holding SGP

Every institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of SpyGlass Pharma, Inc. they hold. Together these 57 managers report 79.67% of shares outstanding.

Investor	Position value	Shares	% of their portfolio	% of company	As of
RA CAPITAL MANAGEMENT, L.P.	$179M	8,021,117	1.55%	23.98%	June 30, 2026
NEA Management Company, LLC	$165M	7,392,301	10.36%	22.10%	June 30, 2026

55 more institutional holders behind a free account

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Funds holding SGP

Funds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 42 funds hold 6.04% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.

Fund	Position value	% of net assets	% of company	As of
VANGUARD TOTAL STOCK MARKET INDEX FUND	$7.06M	0.00%	0.95%	June 30, 2026
JPMorgan Small Cap Growth Fund	$6.48M	0.25%	0.87%	June 30, 2026

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