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18 Delaware opinions name it 3 courts 1973–2026 8 in the last five years
The cases below were cited by Delaware courts in a sentence that names this issue. Sides come from how each citing opinion treated the case (Syfertize flag on that citation), so a case can appear on both: that is where the law is contested. A red or yellow chip is the case's own overall treatment.
| Case | Followed | Cited |
|---|---|---|
Halpern v. Barrangreen2 sentences2026Fraudulent concealment “requires that something affirmative be done by a defendant, some ‘actual artifice’ which prevents a plaintiff from gaining knowledge of the facts, or some misrepresentation which is intended to put the plaintiff off the trail of inquiry.”114 A defendant’s [m]ere silence is insufficient to establish fraudulent concealment.”115 110 Puig v. Seminole Night Club, LLC, 2011 WL 3275948 , at *4 (Del. Ch. July 29, 2011) (internal quotations omitted) (citing Smith v. Mattia, 2010 WL 412030 , at *3 (Del. Ch. Feb. 1, 2010); In re Coca-Cola Enters., Inc., 2007 WL 3122370 , at *5 (De 2026Fraudulent concealment “requires that something affirmative be done by a defendant, some ‘actual artifice’ which prevents a plaintiff from gaining knowledge of the facts, or some misrepresentation which is intended to put the plaintiff off the trail of inquiry.”114 A defendant’s [m]ere silence is insufficient to establish fraudulent concealment.”115 110 Puig v. Seminole Night Club, LLC, 2011 WL 3275948 , at *4 (Del. Ch. July 29, 2011) (internal quotations omitted) (citing Smith v. Mattia, 2010 WL 412030 , at *3 (Del. Ch. Feb. 1, 2010); In re Coca-Cola Enters., Inc., 2007 WL 3122370 , at *5 (De | 5 | 6 |
In Re Tyson Foods, Inc. Consolidated Shareholder Litigationgreen2 sentences2021“Mere silence is insufficient . . . .”119 The only acts that the plaintiff cites are public statements by Sorenson and 115 Id. (quoting In re Tyson Foods, Inc., 919 A.2d 563, 585 (Del. Ch. 2007)); State v. Pettinaro Enters., 870 A.2d 513, 531 (Del. Ch. 2005) (“Fraudulent concealment may be found to exist where a defendant knowingly acted to prevent a plaintiff from learning facts or otherwise made misrepresentations intended to ‘put the plaintiff off the trail of inquiry.’” (quoting Halpern v. Barran, 313 A.2d 139, 143 (Del. Ch. 1973))). 116 Weiss, 948 A.2d at 451 . 117 Pl.’s Supp. Br. 7. 118 2020“Fraudulent concealment requires an affirmative act of concealment by a defendant—an actual artifice that prevents a plaintiff from gaining knowledge of the facts or some misrepresentation that is intended to put a plaintiff off the trail of inquiry.”82 “[T]he doctrine of equitable tolling stops the statute from running while a plaintiff has reasonably relied upon the competence and good faith 80 In re Tyson Foods Inc., 919 A.2d 563, 584 (Del. | 2 | 3 |
State Ex Rel. Brady v. Pettinaro Enterprisesgreen2 sentences2021“Mere silence is insufficient . . . .”119 The only acts that the plaintiff cites are public statements by Sorenson and 115 Id. (quoting In re Tyson Foods, Inc., 919 A.2d 563, 585 (Del. Ch. 2007)); State v. Pettinaro Enters., 870 A.2d 513, 531 (Del. Ch. 2005) (“Fraudulent concealment may be found to exist where a defendant knowingly acted to prevent a plaintiff from learning facts or otherwise made misrepresentations intended to ‘put the plaintiff off the trail of inquiry.’” (quoting Halpern v. Barran, 313 A.2d 139, 143 (Del. Ch. 1973))). 116 Weiss, 948 A.2d at 451 . 117 Pl.’s Supp. Br. 7. 118 2020Brady v. Pettinaro Enters., 870 A.2d 513, 531 (Del. | 2 | 2 |
Krahmer v. Christie's Inc.green2 sentences2021“Mere silence is insufficient . . . .”119 The only acts that the plaintiff cites are public statements by Sorenson and 115 Id. (quoting In re Tyson Foods, Inc., 919 A.2d 563, 585 (Del. Ch. 2007)); State v. Pettinaro Enters., 870 A.2d 513, 531 (Del. Ch. 2005) (“Fraudulent concealment may be found to exist where a defendant knowingly acted to prevent a plaintiff from learning facts or otherwise made misrepresentations intended to ‘put the plaintiff off the trail of inquiry.’” (quoting Halpern v. Barran, 313 A.2d 139, 143 (Del. Ch. 1973))). 116 Weiss, 948 A.2d at 451 . 117 Pl.’s Supp. Br. 7. 118 2020Plaintiff argues that the doctrine of fraudulent concealment tolls the statute of limitations in this case. 56 Fraudulent concealment occurs where an affirmative act of concealment or a misrepresentation was used to “put the plaintiff ‘off the trail of inquiry.’” 57 At the same time, “the trusting plaintiff still must be reasonably attentive to his interests,”58 and the limitations period is only “suspended until his rights are discovered or until they could have been discovered by the exercise of reasonable diligence.” 59 “Inquiry notice does not require full knowledge of the case where plain | 2 | 2 |
Nardo v. Guido DeAscanis & Sons, Inc.green2 sentences2026Fraudulent concealment “requires that something affirmative be done by a defendant, some ‘actual artifice’ which prevents a plaintiff from gaining knowledge of the facts, or some misrepresentation which is intended to put the plaintiff off the trail of inquiry.”114 A defendant’s [m]ere silence is insufficient to establish fraudulent concealment.”115 110 Puig v. Seminole Night Club, LLC, 2011 WL 3275948 , at *4 (Del. Ch. July 29, 2011) (internal quotations omitted) (citing Smith v. Mattia, 2010 WL 412030 , at *3 (Del. Ch. Feb. 1, 2010); In re Coca-Cola Enters., Inc., 2007 WL 3122370 , at *5 (De 2019For the doctrine of fraudulent concealment to toll the limitations period, the defendant must have engaged in an affirmative act of concealment, which Delaware case law defines as “an ‘actual artifice’ that prevents a plaintiff from gaining knowledge of the facts or some misrepresentation that is intended to put a plaintiff off the trail of inquiry.” Similarly, the doctrine of inherently unknowable injuries °4 6 Del. C. § 2006. °5 Inre Dean Witter P’ship Litig., 1998 WL 442456 , at *5 (Del. Ch. July 17, 1998) (citing Halpern v. Barran, 313 A.2d 139, 143 (Del. Ch. 1973)), aff'd, 725 A.2d 441 (D | 1 | 4 |
Giordano v. Czerwinskigreen1 sentence2026Fraudulent concealment “requires that something affirmative be done by a defendant, some ‘actual artifice’ which prevents a plaintiff from gaining knowledge of the facts, or some misrepresentation which is intended to put the plaintiff off the trail of inquiry.”114 A defendant’s [m]ere silence is insufficient to establish fraudulent concealment.”115 110 Puig v. Seminole Night Club, LLC, 2011 WL 3275948 , at *4 (Del. Ch. July 29, 2011) (internal quotations omitted) (citing Smith v. Mattia, 2010 WL 412030 , at *3 (Del. Ch. Feb. 1, 2010); In re Coca-Cola Enters., Inc., 2007 WL 3122370 , at *5 (De | 1 | 1 |
Nicolet, Inc. v. Nuttgreen1 sentence2025Compl. ¶ 10; see also id. ¶¶ 35, 53. 105 In re Swervepay Acquisition, LLC, 2022 WL 3701723 , at *9-11 (Del. Ch. Aug. 26, 2022) (dismissing fraud claims against certain defendants because group pleading did not supply any “reason in law or logic to impute the statements [at issue] to other defendants”). 106 Compl ¶¶ 46-54, 83, 89-90; PAB 7. 107 Nicolet, Inc. v. Nutt, 525 A.2d 146, 149 (Del. 1987). 19 plaintiff from gaining knowledge of the facts or some misrepresentation that is intended to put a plaintiff off the trail of inquiry.”108 That requirement reverberates through several elements. | 1 | 1 |
Lecates v. Hertrich Pontiac Buick Co.green1 sentence2025Deliberate concealment and scienter both require the plaintiff to establish active concealment, rather than passive concealment.109 And, as to reliance and causation, the affirmative act alleged must conceal information from the plaintiff.110 To plead active concealment, “a plaintiff must allege facts supporting an inference that the defendant took some action affirmative in nature designed or intended to prevent, and which does prevent, the discovery of facts giving rise to the 108 In re Dean Witter P’ship Litig., 1998 WL 442456 , at *5 (Del. Ch. July 17, 1998), aff’d, 725 A.2d 441 (Del. 1999 | 1 | 1 |
Wal-Mart Stores, Inc. v. AIG Life Insurancegreen2 sentences2025Sys. v. Sorenson, 2021 WL 4593777 , at *10 (Del. Ch. Oct. 5, 2021) (noting that an affirmative act is required for tolling under the fraudulent concealment doctrine and that “mere silence is insufficient”). 170 Dean Witter, 1998 WL 442456 , at *5; see also Wal-Mart Stores, 860 A.2d at 319 (citation omitted). 171 Dean Witter, 1998 WL 442456 , at *6. 37 The plaintiffs conflate these distinct tolling doctrines.172 Substantively, their theory most aligns with inherently unknowable injuries.173 They posit that, because they relied on representations by Katz and others, the state of UpHealth and the 2025Sys. v. Sorenson, 2021 WL 4593777 , at *10 (Del. Ch. Oct. 5, 2021) (noting that an affirmative act is required for tolling under the fraudulent concealment doctrine and that “mere silence is insufficient”). 170 Dean Witter, 1998 WL 442456 , at *5; see also Wal-Mart Stores, 860 A.2d at 319 (citation omitted). 171 Dean Witter, 1998 WL 442456 , at *6. 37 The plaintiffs conflate these distinct tolling doctrines.172 Substantively, their theory most aligns with inherently unknowable injuries.173 They posit that, because they relied on representations by Katz and others, the state of UpHealth and the | 1 | 1 |
Allen v. Laytongreen1 sentence2022Fraudulent concealment is an intentional nondisclosure of material facts by one who owes a duty to disclose; typically, the defrauding party has knowledge of the facts they are concealing.192 A valid claim for fraudulent concealment requires that a plaintiff demonstrate the defendant engaged in an “affirmative act of concealment” that “put the plaintiff off the trail of inquiry,” preventing them “from gaining knowledge of the facts.”193 Put simply, a fraudulent concealment claim must 190 See Pls.’ Br. in Opp. at 30-31. 191 Broska, 668 A.2d at 1364 . 192 Allen v. Layton, 235 A.2d 261, 264 (Del. | 1 | 1 |
Kaufman v. C.L. McCabe & Sons, Inc.green1 sentence2019McCabe & Sons, Inc., 603 A.2d 831, 834 (Del. 1992). 91 Kraft, 145 A.3d at 983 . 22 injuries, (ii) fraudulent concealment and (iii) equitable tolling.92 To show that a plaintiff’s injuries were inherently unknowable, “there must have been no observable or objective factors to put a party on notice of an injury,” and a plaintiff must plead facts demonstrating that he was “blamelessly ignorant” of the act and injury.93 “Fraudulent concealment ‘requires an affirmative act of concealment by a defendant—an ‘actual artifice’ that prevents a plaintiff from gaining knowledge of the facts or some misrep | 1 | 1 |
Ryan v. Giffordgreen1 sentence2013Fraudulent concealment “requires an affirmative act of concealment by a defendant-an actual artifice that prevents a plaintiff from gaining knowledge of the facts or some misrepresentation that is intended to put a plaintiff off the trail of inquiry.” Ryan v. Gifford, 918 A.2d 341, 360 (Del.Ch.2007) (internal quotation marks and footnote omitted). | 1 | 1 |
Shockley v. Dyergreen1 sentence1986In Shockley v. Dyer, 456 A.2d at p. 799 (1983), the Supreme Court stated that in order to invoke the doctrine of fraudulent concealment: “The physician must have used some ‘actual artifice’ which prevented plaintiff from gaining knowledge of the facts or have made some misrepresentation which was intended to put plaintiff off the trail of inquiry.” The general rule in other jurisdictions is that “mere silence of a person concerning a cause of action which arises against him is not sufficient to prevent the running of the statute of limitations ...” 51 Am.Jur.2d Limitation of Actions § 149. | 1 | 1 |
| Case | Negative | Cited |
|---|---|---|
Krahmer v. Christie's Inc.green2 sentences2025Fraudulent concealment involves “an affirmative act of concealment by a defendant . . . intended to put a plaintiff off the trail of inquiry.”169 Under the “inherently unknowable injuries” doctrine, “there must have been no observable or objective factors to put a party on notice of an injury, and plaintiffs must show that they were blamelessly ignorant of the act or omission and the injury.”170 And equitable tolling applies in the event of wrongful self-dealing, where a plaintiff reasonably relies on the competence and good faith of a fiduciary—even in the absence of fraudulent conduct.171 16 2022But see Krahmer v. Christie’s Inc., 903 A.2d 773, 780 (Del. Ch. 2006) (“After the Layton decision was rendered, the Delaware General Assembly enacted 18 Del. C. § 6856, which restricted the court’s holding in medical malpractice cases. | 1 | 2 |
Layton v. Allengreen1 sentence2022Fraudulent concealment is an intentional nondisclosure of material facts by one who owes a duty to disclose; typically, the defrauding party has knowledge of the facts they are concealing.192 A valid claim for fraudulent concealment requires that a plaintiff demonstrate the defendant engaged in an “affirmative act of concealment” that “put the plaintiff off the trail of inquiry,” preventing them “from gaining knowledge of the facts.”193 Put simply, a fraudulent concealment claim must 190 See Pls.’ Br. in Opp. at 30-31. 191 Broska, 668 A.2d at 1364 . 192 Allen v. Layton, 235 A.2d 261, 264 (Del. | 1 | 1 |
| Case | Cited | Years |
|---|---|---|
Ewing v. Beck
green
2 sentences2022Tolling ends when the plaintiff is placed on inquiry notice, in the sense that the plaintiff knew or should have known about the wrongful act. 24 “Fraudulent concealment requires that something affirmative be done by a defendant, some ‘actual artifice’ which prevents a plaintiff from gaining knowledge of the facts, or some misrepresentation which is intended to put the plaintiff off the trail of inquiry.” Ewing, 520 A.2d at 667 . 2022Tolling ends when the plaintiff is placed on inquiry notice, in the sense that the plaintiff knew or should have known about the wrongful act.24 “Fraudulent concealment requires that something affirmative be done by a defendant, some ‘actual artifice’ which prevents a plaintiff from gaining knowledge of the facts, or some misrepresentation which is intended to put the plaintiff off the trail of inquiry.” Ewing, 520 A.2d at 667 . | 2 | 2022–2022 |
LGM Holdings, LLC v. Gideon Schurder
green
1 sentence2026Fraudulent concealment “requires that something affirmative be done by a defendant, some ‘actual artifice’ which prevents a plaintiff from gaining knowledge of the facts, or some misrepresentation which is intended to put the plaintiff off the trail of inquiry.”114 A defendant’s [m]ere silence is insufficient to establish fraudulent concealment.”115 110 Puig v. Seminole Night Club, LLC, 2011 WL 3275948 , at *4 (Del. Ch. July 29, 2011) (internal quotations omitted) (citing Smith v. Mattia, 2010 WL 412030 , at *3 (Del. Ch. Feb. 1, 2010); In re Coca-Cola Enters., Inc., 2007 WL 3122370 , at *5 (De | 1 | 2026–2026 |
Ontario Provincial Council of Carpenters' Pension Trust Fund v. Walton
green
1 sentence2025Since an affirmative act is required, Petitioner cannot claim that Respondent was obligated to notify him that his payments were not 45 Walton, 294 A.3d at 96 (quoting Sunrise Ventures, LLC v. Rehoboth Canal Ventures, LLC, 2010 WL 363845 , at *7 (Del. Ch. Jan. 27, 2010). | 1 | 2025–2025 |
Hernandez-Martinez v. State
green
1 sentence2025Deliberate concealment and scienter both require the plaintiff to establish active concealment, rather than passive concealment.109 And, as to reliance and causation, the affirmative act alleged must conceal information from the plaintiff.110 To plead active concealment, “a plaintiff must allege facts supporting an inference that the defendant took some action affirmative in nature designed or intended to prevent, and which does prevent, the discovery of facts giving rise to the 108 In re Dean Witter P’ship Litig., 1998 WL 442456 , at *5 (Del. Ch. July 17, 1998), aff’d, 725 A.2d 441 (Del. 1999 | 1 | 2025–2025 |
Brzoska v. Olson
green
1 sentence2022Fraudulent concealment is an intentional nondisclosure of material facts by one who owes a duty to disclose; typically, the defrauding party has knowledge of the facts they are concealing.192 A valid claim for fraudulent concealment requires that a plaintiff demonstrate the defendant engaged in an “affirmative act of concealment” that “put the plaintiff off the trail of inquiry,” preventing them “from gaining knowledge of the facts.”193 Put simply, a fraudulent concealment claim must 190 See Pls.’ Br. in Opp. at 30-31. 191 Broska, 668 A.2d at 1364 . 192 Allen v. Layton, 235 A.2d 261, 264 (Del. | 1 | 2022–2022 |
Weiss v. Swanson
green
2 sentences2021“Mere silence is insufficient . . . .”119 The only acts that the plaintiff cites are public statements by Sorenson and 115 Id. (quoting In re Tyson Foods, Inc., 919 A.2d 563, 585 (Del. Ch. 2007)); State v. Pettinaro Enters., 870 A.2d 513, 531 (Del. Ch. 2005) (“Fraudulent concealment may be found to exist where a defendant knowingly acted to prevent a plaintiff from learning facts or otherwise made misrepresentations intended to ‘put the plaintiff off the trail of inquiry.’” (quoting Halpern v. Barran, 313 A.2d 139, 143 (Del. Ch. 1973))). 116 Weiss, 948 A.2d at 451 . 117 Pl.’s Supp. Br. 7. 118 2021“Mere silence is insufficient . . . .”119 The only acts that the plaintiff cites are public statements by Sorenson and 115 Id. (quoting In re Tyson Foods, Inc., 919 A.2d 563, 585 (Del. Ch. 2007)); State v. Pettinaro Enters., 870 A.2d 513, 531 (Del. Ch. 2005) (“Fraudulent concealment may be found to exist where a defendant knowingly acted to prevent a plaintiff from learning facts or otherwise made misrepresentations intended to ‘put the plaintiff off the trail of inquiry.’” (quoting Halpern v. Barran, 313 A.2d 139, 143 (Del. Ch. 1973))). 116 Weiss, 948 A.2d at 451 . 117 Pl.’s Supp. Br. 7. 118 | 1 | 2021–2021 |
Harold Kraft v. Wisdomtree Investments, Inc.
green
1 sentence2019McCabe & Sons, Inc., 603 A.2d 831, 834 (Del. 1992). 91 Kraft, 145 A.3d at 983 . 22 injuries, (ii) fraudulent concealment and (iii) equitable tolling.92 To show that a plaintiff’s injuries were inherently unknowable, “there must have been no observable or objective factors to put a party on notice of an injury,” and a plaintiff must plead facts demonstrating that he was “blamelessly ignorant” of the act and injury.93 “Fraudulent concealment ‘requires an affirmative act of concealment by a defendant—an ‘actual artifice’ that prevents a plaintiff from gaining knowledge of the facts or some misrep | 1 | 2019–2019 |
Taylor v. Wilmington Medical Center, Inc.
green
1 sentence1986In Taylor v. Wilmington Medical Center, Inc., D.Del., 538 F.Supp. 339 (1982), the United States District Court for the District of Delaware, applying Delaware law, held that the failure of a physician to disclose the fact that before giving advice he had knowledge that a baby had spina bifida was not active concealment which tolled the statute of limitations. | 1 | 1986–1986 |
Counted by distinct opinions that both name this issue and are annotated to the section; sections every opinion cites regardless of issue are not filtered here, so read the counts against the total above.
Opinions by the citing court's state. A doctrine retained in one state and abandoned in another shows up here as a year span that stalls.