Tectonic Therapeutic Ownership | Who Owns Tectonic Therapeutic?
Tectonic Therapeutic Ownership Summary
Tectonic Therapeutic is owned by 22.74% institutional investors, 39.34% insiders, and 37.92% retail investors. Fmr is the largest institutional shareholder, holding 15.37% of TECX shares.
TECX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Tectonic Therapeutic | 22.74% | 39.34% | 37.92% |
| Sector | Healthcare Stocks | 35.42% | 11.83% | 52.76% |
| Industry | Biotech Stocks | 35.46% | 11.78% | 52.76% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 2.82M | 15.37% | $87.06M |
| Tcg crossover management | 1.20M | 6.58% | $37.24M |
| Abrdn | 1.14M | 6.23% | $35.29M |
| Blackrock funding, inc. /de | 860.35K | 4.70% | $26.59M |
| Braidwell lp | 847.15K | 4.62% | $26.19M |
| First light asset management | 647.74K | 3.54% | $20.02M |
| Farallon capital management | 640.00K | 3.42% | $10.04M |
| Baker bros. advisors lp | 607.79K | 3.32% | $18.79M |
| 5am venture management | 606.66K | 3.31% | $18.75M |
| Vanguard group | 599.90K | 3.21% | $12.51M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| 5am venture management | 606.66K | 5.21% | $18.75M |
| Superstring capital management lp | 119.29K | 1.84% | $1.87M |
| First light asset management | 647.74K | 1.79% | $20.02M |
| Ally bridge group (ny) | 138.59K | 1.32% | $2.17M |
| Tcg crossover management | 1.20M | 1.07% | $37.24M |
| Aldebaran capital | 37.18K | 0.88% | $1.15M |
| Braidwell lp | 847.15K | 0.87% | $26.19M |
| Stempoint capital lp | 189.00K | 0.59% | $2.97M |
| Sectoral asset management | 19.06K | 0.52% | $628.22K |
| Opaleye management | 123.00K | 0.50% | $3.80M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Tcg crossover management | 1.20M | 1.07% | 1.20M |
| First light asset management | 647.74K | 1.79% | 647.74K |
| Marshall wace, llp | 229.59K | 0.01% | 198.68K |
| Price t rowe associates inc /md/ | 164.06K | 0.00% | 164.06K |
| Ikarian capital | 157.54K | 0.40% | 157.54K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Deep track capital, lp | - | - | -1.40M |
| Vida ventures advisors | - | - | -1.03M |
| Ecor1 capital | - | - | -935.12K |
| Paradigm biocapital advisors lp | - | - | -485.11K |
| Point72 asset management | 68.60K | 0.00% | -423.73K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Tcg crossover management | 1.20M | 1.07% | 1.20M | $37.24M |
| Price t rowe associates inc /md/ | 164.06K | 0.00% | 164.06K | $5.07M |
| Ikarian capital | 157.54K | 0.40% | 157.54K | $4.87M |
| Ameriprise financial | 143.43K | 0.00% | 143.43K | $4.43M |
| Sphera funds management | 115.91K | 0.38% | 115.91K | $1.82M |
Sold Out
| Holder | Change |
|---|---|
| Sbi securities | -1.00 |
| Advisor group | -1.00 |
| Srs capital advisors | -15.00 |
| Rise advisors | -28.00 |
| Optima capital | -31.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 63 | -43.24% | 4,166,953 | -69.84% | 22 | 0.42% | 36 | -44.62% | 17 | -34.62% |
| Dec 31, 2025 | 25 | -75.49% | 1,929,475 | -84.06% | 10 | 0.25% | 14 | -76.27% | 6 | -71.43% |
| Sep 30, 2025 | 24 | -70.73% | 1,119,638 | -90.76% | 5 | 0.14% | 11 | -78.85% | 5 | -61.54% |
| Jun 30, 2025 | 80 | 6.67% | 12,108,929 | 23.80% | 64 | 1.99% | 53 | -7.02% | 13 | 18.18% |
| Mar 31, 2025 | 76 | 10.14% | 11,027,607 | 43.97% | 64 | 2.38% | 57 | 26.67% | 12 | -20.00% |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 04, 2026 | Ruddy Marcella K. | Chief Medical Officer | Sell | $31.95K |
| Apr 01, 2026 | Ruddy Marcella K. | Chief Medical Officer | Sell | $31.05K |
| Mar 06, 2026 | Ruddy Marcella K. | Chief Medical Officer | Sell | $300.00K |
| Mar 06, 2026 | McNamara Peter | Chief Scientific Officer | Sell | $7.53K |
| Mar 06, 2026 | McNamara Peter | Chief Scientific Officer | Sell | $181.41K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 2 |
| 2026 Q1 | 3 | 5 |
| 2025 Q4 | - | - |
| 2025 Q3 | - | - |
| 2025 Q2 | 10 | 1 |
TECX Ownership FAQ
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