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SC 13G ·Filed Sep 21, 2026

TYRA

Tyra Biosciences, Inc.
NEUTRAL
Impact 4/10
Horizonweeks Processed1mo ago SEC0000921895-26-002613
Passive investor 5%+ stake
Actionable Insight • Neutral

Monitor for any future conversion of this 13G to a 13D, which would signal activist intent. The large passive stake by a dedicated biotech fund signals conviction but no near-term catalyst.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+20d
TYRA ▼ -19.95% at T+20d
NEUTRAL call -19.95% · α vs SPY -19.39% · entry $25.57 → $20.47
Next anchor: T+60d in 7w
Latest observation: T+23 -14.92% FF3 residual α
Entry = T+0 close
Sep 21, 2026
via day close
T+1d
-9.15%
call -9.15% · α -8.43%
$23.23
settled 5w ago
T+5d
-14.04%
call -14.04% · α -12.85%
$21.98
settled 29d ago
T+20d
-19.95%
call -19.95% · α -19.39%
$20.47
settled 8d ago
T+60d
Pending
in 7w

Price Chart

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Executive Summary

Biotechnology Value Fund (BVF) and related entities filed a Schedule 13G on September 21, 2026, disclosing a passive 6.1% beneficial ownership stake in Tyra Biosciences, Inc. as of September 14, 2026. The filing is an initial 13G (not an amendment) and confirms a significant passive position by a dedicated healthcare investment firm, with no intent to influence control.

Key Financial Metrics

Stake
6.1%
Investor
Biotechnology Value Fund L.P. / BVF Partners L.P. / Mark N. Lampert
Investor Type
hedge fund

Key Facts

  • BVF Partners L.P., BVF Inc., and Mark N. Lampert each reported beneficial ownership of 4,215,886 shares, representing 6.1% of Tyra Biosciences common stock.
  • BVF GP Holdings LLC reported beneficial ownership of 3,854,717 shares, representing 5.6% of shares outstanding.
  • The filing is an initial Schedule 13G (not an amendment), filed under Rule 13d-1(c), indicating passive intent.
  • The percentage calculation is based on 68,755,939 shares outstanding (59,676,939 as of July 31, 2026, plus 9,079,000 shares issued in a September 15, 2026 offering).
  • The filing date is September 21, 2026, with beneficial ownership measured as of September 14, 2026.

Financial Impact

Passive 6.1% stake valued at approximately $X million (no per-share price provided in filing).

ownership concentration

Risk Factors

  • Potential future dilution from the recent September 2026 offering could reduce the fund's percentage ownership.
  • No explicit catalyst or timeline for value realization from the fund's perspective.

Investment Themes

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
SC 13G Filing (Primary)0000921895-26-002613
Document: 0000921895-26-002613-index-headers.html0000921895-26-002613
Document: 0000921895-26-002613-index.html0000921895-26-002613
Document: 0000921895-26-002613.txt0000921895-26-002613
11 reports for TYRA
Performance horizon
75% Hit rate @ T+5 3 of 4 directional calls Went positive at some point 3 of 4 best @ T+60▲ +20.37%Jun 26, 2026
Filters
Rows
Reports for TYRA — sortable, filterable
TypeNow
Sep 21, 2026
5w ago
SC 13G
NEUTRAL ★ 4/10
$25.57 $21.98▼ −14.04%▼ −12.85%$20.42 (−20.14%)
Sep 17, 2026
5w ago
Insider Cluster
BULLISH ★ 8/10
$25.73 $21.76▼ −15.43%▼ −16.70%$20.42 (−20.64%)
Sep 14, 2026
6w ago
S-3ASR
NEUTRAL ★ 3/10
$25.07 $25.65▲ +2.31%▲ +2.21%$20.42 (−18.55%)
Sep 9, 2026
6w ago
8-K
BULLISH ★ 6/10
$22.01 $24.35▲ +10.63%▲ +11.73%$20.42 (−7.22%)
Aug 4, 2026
11w ago
424B5
BEARISH ★ 6/10
$25.71 $25.30▲ +1.59%▲ +1.95%$20.42 (+20.58%)
Jun 26, 2026
17w ago
144
BEARISH ★ 6/10
$32.11 $30.86▲ +3.89%▲ +5.28%$20.42 (+36.41%)
May 13, 2026
23w ago
8-K
MIXED ★ 5/10
$36.19 $33.78▼ −6.66%▼ −5.50%$20.42 (−43.58%)
Apr 20, 2026
27w ago
3
NEUTRAL ★ 2/10
$36.69 $35.06▼ −4.44%▼ −5.53%$20.42 (−44.34%)
Apr 17, 2026
27w ago
DEFA14A
NEUTRAL ★ 4/10
$35.56 $37.59▲ +5.71%▲ +5.15%$20.42 (−42.58%)
Apr 17, 2026
27w ago
8-K
NEUTRAL ★ 3/10
$35.56 $37.59▲ +5.71%▲ +5.15%$20.42 (−42.58%)
Showing 10 of 11

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Report published Sep 21, 2026