PBLS Parabilis Medicines, Inc.

BULLISH Impact: 8/10 Insider Cluster (4 insiders)
Horizon weeks Filed Jun 16, 2026 Processed 4d 10h ago
Insider cluster: 2 insiders, $394.8M total
Latest settled — T+1d ⚠ clustered
PBLS ▼ -0.69% at T+1d
LONG call ✗ call lost -0.69% · α vs SPY -1.47% · entry $26.03 → $25.85
Next anchor: T+5d in 3d
Last close $25.85 (close Jun 18) · -0.69% from $26.03 entry
Entry anchored
Jun 16, 03:59 PM ET
via Databento tick
T+1d
-0.69%
call -0.69% · α -1.47%
$25.85
settled 4d ago
T+5d
call — · α —
in 3d
T+20d
call — · α —
in 24d
T+60d
call — · α —
in 3mo

Price Chart

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Executive Summary

RA Capital Management, a director and 10% owner, purchased 19.73M shares of PBLS for $394.57M at $20/share on June 11, representing ~13% of market cap. Director Alan Sebulsky also bought ~$613K in open-market purchases. This cluster coincides with the company's IPO and a $75M Regeneron private placement disclosed in a June 11 8-K, signaling strong insider conviction.

Key Financial Metrics

Direction
buying
Total Value
$394.8M
Insiders
4

Actionable Insight

The massive insider buy by RA Capital at $20/share, aligned with the IPO and Regeneron investment, is a powerful vote of confidence. Monitor for price discovery above $20 as the market absorbs this signal. Watch for lockup expiration details from the IPO for potential selling pressure.

Key Facts

  • RA Capital Management purchased 19,728,353 shares at $20.00 for $394.57M on June 11, 2026
  • Alan Sebulsky (Director) purchased 25,935 shares total (~$613K) across three open-market buys on June 11, 12, and 15
  • Total insider buying of ~$395.2M represents ~13.2% of PBLS's $3.0B market cap
  • Non-cash derivative conversions by RA Capital, Edward Fitzgerald, and James Flynn had no economic impact
  • Cluster coincides with June 11 8-K detailing IPO completion and $75M Regeneron private placement

Financial Impact

$394.57M insider purchase by RA Capital, ~13% of market cap; Sebulsky added ~$613K

ownership concentrationmarket capfloat

Risk Factors

  • IPO lockup expiration could introduce selling pressure from other pre-IPO holders
  • Governance changes (classified board, supermajority votes) may deter some institutional investors
  • Stock is thinly traded post-IPO; large insider position may limit liquidity

Market Snapshot

Exchange
Nasdaq

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-PBLS-1781648407180
15 reports for PBLS
Performance horizon
0% Hit rate 0 of 4 directional calls best @ T+1▼ −2.11%Jun 15, 2026
Filters
Rows
Reports for PBLS — sortable, filterable
Type Now
Jun 16, 2026
4d ago
Insider Cluster
BULLISH ★ 8/10
$26.03 $25.85▼ −0.69%▼ −1.47%$25.85 (−0.69%)
Jun 15, 2026
5d ago
Insider Cluster
BULLISH ★ 9/10
$26.59 $26.03▼ −2.11%▼ −0.86%$25.85 (−2.78%)
Jun 11, 2026
9d ago
8-K
MIXED ★ 6/10
$27.26 $25.01▼ −8.25%▼ −10.02%$25.85 (−5.17%)
Jun 10, 2026
10d ago
424B4
BULLISH ★ 7/10
$30.31 $27.26▼ −10.06%▼ −10.60%$25.85 (−14.71%)
Jun 10, 2026
11d ago
EFFECT
BULLISH ★ 7/10
$31.60 $30.31▼ −4.08%▼ −5.78%$25.85 (−18.20%)
Jun 10, 2026
11d ago
3
NEUTRAL ★ 2/10
$31.60 $30.31▼ −4.08%▼ −5.78%$25.85 (−18.20%)
Jun 10, 2026
11d ago
3
NEUTRAL ★ 1/10
$31.60 $30.31▼ −4.08%▼ −5.78%$25.85 (−18.20%)
Jun 10, 2026
11d ago
3
NEUTRAL ★ 1/10
$31.60 $30.31▼ −4.08%▼ −5.78%$25.85 (−18.20%)
Jun 10, 2026
11d ago
3
NEUTRAL ★ 2/10
$31.60 $30.31▼ −4.08%▼ −5.78%$25.85 (−18.20%)
Jun 10, 2026
11d ago
3
NEUTRAL ★ 2/10
$31.60 $30.31▼ −4.08%▼ −5.78%$25.85 (−18.20%)
Showing 10 of 15

US Market Status

Market Closed — Opens Mon (28h 44m)

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