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SC 13D/A ·Filed Oct 1, 2026

DH

Definitive Healthcare Corp.
BULLISH
Impact 7/10
Horizonweeks Processed25d 15h ago SEC0001140361-26-038313
Activist stake amendment (position change)
Actionable Insight ▲ Bullish

The NDA formalizes Advent's access to non-public information, indicating the Special Committee is engaging in earnest. The standstill prevents Advent from launching a hostile bid or increasing its stake without consent, but the explicit carve-out for continued discussions with the Special Committee and Krantz suggests a negotiated deal is the likely path. Watch for a definitive agreement announcement or a competing bid from a third party, which would trigger the standstill's Fall-Away Event and potentially escalate the process.

DirectionBullish
Confidencehigh
Horizonweeks
Latest settled — T+5d
DH ▲ +5.00% at T+5d
LONG call ✓ call won +5.00% · α vs SPY +3.84% · entry $0.9333 → $0.9800
Next anchor: T+20d tomorrow
Latest observation: T+15 +8.37% FF3 residual α
Entry = T+0 close
Oct 1, 2026
via day close
T+1d
+5.67%
call +5.67% · α +4.99%
$0.9862
settled 25d ago
T+5d
+5.00%
call +5.00% · α +3.84%
$0.9800
settled 19d ago
T+20d
Pending
tomorrow
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Advent International filed Amendment No. 1 to its Schedule 13D, disclosing entry into a confidentiality agreement (NDA) with Definitive Healthcare Corp. on September 29, 2026. The NDA includes a 12-month standstill and non-solicitation provisions, but explicitly permits Advent to continue engaging with the Special Committee and founder Jason Krantz regarding a potential acquisition. Advent's beneficial ownership remains unchanged at 58.54% (62,493,676 shares), and no transactions were effected since the original filing. This formalizes the process around Advent's September 1 non-binding $1.02/share offer (36% premium to 60-day VWAP), signaling the go-private process is advancing into due diligence.

Key Financial Metrics

Stake
58.54%
Investor
Advent International, L.P.

Key Facts

  • Advent International entered into a confidentiality agreement with Definitive Healthcare on September 29, 2026, to facilitate due diligence for a potential acquisition.
  • Advent's beneficial ownership remains at 58.54% (62,493,676 shares of Class A Common Stock), unchanged since the original Schedule 13D filed September 2, 2026.
  • The NDA includes a 12-month standstill provision barring Advent from acquiring additional securities, seeking board representation, or launching a tender offer without the Company's consent, subject to exceptions including discussions with Jason Krantz and the Special Committee.
  • The standstill terminates upon a 'Fall-Away Event' such as the Company entering a definitive agreement with a third party, a third-party tender offer, or a change in board composition.
  • Advent's September 1, 2026 non-binding proposal offered $1.02 per share in cash, a 36% premium to the 60-day VWAP of $0.75, and is not subject to a financing condition.
  • The NDA explicitly permits Advent to continue engaging with the Special Committee and Jason Krantz regarding a transaction.
  • No transactions in Common Stock were effected by Advent since the original Schedule 13D filing.

Financial Impact

Advent's $1.02/share all-cash offer represents a 36% premium to the 60-day VWAP of $0.75. Based on 106,744,713 shares outstanding, the implied equity value is approximately $108.9 million.

share priceenterprise value

Risk Factors

  • The $1.02/share offer may be rejected by the Special Committee as inadequate, leading to a stalemate or Advent walking away.
  • The 12-month standstill limits Advent's ability to apply public pressure or launch a tender offer without the Company's consent, potentially slowing the timeline.
  • Advent's 58.54% stake means any transaction requires careful handling of related-party and minority shareholder considerations.
  • The non-binding nature of the proposal means Advent could withdraw or modify terms at any time.

Investment Themes

Software & IT

Documents Analyzed

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

DocumentAccession Number
SC 13D/A Filing (Primary)0001140361-26-038313
Document: 0001140361-26-038313-index-headers.html0001140361-26-038313
Document: 0001140361-26-038313-index.html0001140361-26-038313
Document: 0001140361-26-038313.txt0001140361-26-038313
12 reports for DH
Performance horizon
0% Hit rate @ T+5 0 of 7 directional calls Went positive at some point 0 of 7 best @ T+1· 0.00%Sep 2, 2026
Filters
Rows
Reports for DH — sortable, filterable
TypeNow
Oct 1, 2026
25d ago
SC 13D/A
BULLISH ★ 7/10
$0.9333 $0.9800▲ +5.00%▲ +3.84%$1.10 (+17.75%)
Sep 9, 2026
6w ago
8-K
BULLISH ★ 6/10
$1.03 $0.9650▼ −6.31%▼ −5.22%$1.10 (+6.70%)
Sep 2, 2026
7w ago
8-K
BULLISH ★ 6/10
$1.04 $1.03▼ −0.96%▼ −0.00%$1.10 (+5.67%)
Sep 2, 2026
7w ago
Press Release
BULLISH ★ 6/10
$1.04 $1.03▼ −0.96%▼ −0.00%$1.10 (+5.67%)
Sep 2, 2026
7w ago
8-K
NEUTRAL ★ 4/10
$1.04 $1.03▼ −0.96%▼ −0.00%$1.10 (+5.67%)
Aug 15, 2026
10w ago
Institutional Cluster
BEARISH ★ 6/10
$0.6394 $0.7209▼ −12.75%▼ −13.94%$1.10 (−71.88%)
Aug 10, 2026
11w ago
8-K
BEARISH ★ 6/10
$0.6437 $0.6600▼ −2.53%▼ −2.94%$1.10 (−70.73%)
Aug 10, 2026
11w ago
Press Release
BEARISH ★ 6/10
$0.6437 $0.6600▼ −2.53%▼ −2.94%$1.10 (−70.73%)
Jun 24, 2026
17w ago
8-K
BEARISH ★ 7/10
$0.6280 $0.7999▼ −27.37%▼ −25.81%$1.10 (−75.00%)
Apr 23, 2026
26w ago
DEFA14A
NEUTRAL ★ 3/10
$1.02 $0.9530▼ −6.57%▼ −7.48%$1.10 (+7.75%)
Showing 10 of 12

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Report published Oct 1, 2026